3593 + Interview Questions in BIOMOLECULES IN GENERAL AWARENESS Page 47 InterviewSolution

2301.	At the isoelectric point, amino acids are present asA. `H_(2)N-CHR-CO OH`B. `H_(3)overset(+)(N)-CHR-CO OH`C. `NH_(2)-CHR-CO O^(-)`D. `H_(3)N^(+) CHRCO O^(-)`
Answer» Correct Answer - D See isoelectric point of `alpha`-amino acids.

Discussion

2302.	At the isoelectric point, amino acids are present asA. `H_(2)N-CHR-CO OH`B. `overset(+)(N)H_(3)-CHR-CO O^(-)`C. `NH_(2)-CHR-CO O^(-)`D. `overset(+)(N)H_(3)-CHR-CO OH`
Answer» Correct Answer - B AT isoelectric amino acids exist as zwitter ion `overset(+)(N)H_(3)-CH(R)-CO O^(-)`

Discussion

2303.	Which of the following is a fibrous protein?A. HaemoglobinB. KeratinC. AlbuminD. Enzymes
Answer» Correct Answer - B

Discussion

2304.	Which of the following is a fibrous protein?A. HaemoglobinB. albuminC. keratinD. Enzymes.
Answer» Correct Answer - C Keratin is fibrous protein.

Discussion

2305.	Cell membranes are mainly composed of `:`A. phospholipidsB. fatsC. proteinsD. carbohydrates
Answer» Correct Answer - A Phospholipids

Discussion

2306.	Mention any five secondary metabolites with two examples for each.
Answer» Pigments – Carotenoids, Anthocyanins Alkaloids – Morphine, Codeine etc. Essential oils – Lemon grass oil Toxins – Abnn, Ricin Drags – Vinblastin, curcumin Polymeric substances – Rubber, gems Terpenoids – Monoterpenes, Diterpenes.

Discussion

2307.	Mention any five proteins with their functions.
Answer» Collagen – Intercellular ground substance Trypsin – Enzyme Insulin – Hormone Antibody – Fights infectious agents Receptor – Sensory reception like smell, taste, hormone etc. GLUT- 4- Enables glucose transport into cells.

Discussion

2308.	What is an inhibitor of an enzyme action?
Answer» The chemical substance which decreases or shuts off enzyme activity is called an inhibitor.

Discussion

2309.	Define activation energy of reaction.
Answer» The difference in the average energy content of the substrate form, from that of the transition state is called activation energy.

Discussion

2310.	What is active site’ of an enzyme?
Answer» Active site of an enzyme is a service or pocket into which the substrate fits.

Discussion

2311.	What is a substrate In an enzyme action?
Answer» The chemical substance on which the enzyme acts is called the substrate.

Discussion

2312.	What is the function of carbonic anhydrase?
Answer» Carhonic anhydrase catalyses the formation of carbonic acid from carbon dioxide and water

Discussion

2313.	Most abundant mineral of animal body isA. ironB. sodiumC. potassiumD. calcium
Answer» Correct Answer - D

Discussion

2314.	Cabonic anhydrase accelerate the rate of reaction by aboutA. 200 timesB. 6,00,000 timesC. 10 million timesD. 10 billion times
Answer» Correct Answer - C (C) Carbonic anhydrase accelerate the rate of reaction by about 10 million times ( `10^(7)` times ).

Discussion

2315.	Which one of the following statements is wrongA. Sucrose is a disaccharideB. Cellulose is a poysaccharideC. Uracil is a pyrimidineD. Glycine is a sulphur containing amino acid
Answer» Correct Answer - D

Discussion

2316.	Which of the following fats is least harmful for heartA. Saturated fatB. CholesterolC. Polyunsaturated fatD. Oils
Answer» Correct Answer - C (c) The fatty acids having more than one double bond are called polyunsaturated fatty acids. Fats having such fatty acids are termed polyunsaturated fats. The latter are commended by physician for persons having cardiovascular disease as their use lowers the blood cholesterol level.

Discussion

2317.	Which of the following is conjugated proteinA. ChromoproteinsB. PhosphoproteinC. GlycoproteinD. All of the above
Answer» Correct Answer - D

Discussion

2318.	The following reaction is catalysed by `CO_(2)+H_(2)O to H_(2)CO_(3)`A. CarboxypeptidaseB. Carbonic anhydraseC. Carbonic dehydrogenaseD. Both A and B
Answer» Correct Answer - B (B) This reaction is catalysed by carbonic anhydrase. `CO_(2)+H_(2)O to H_(2)CO_(3)`

Discussion

2319.	Which of the following is not conjugated proteinA. PeptoneB. PhosphoproteinC. LipoproteinD. Chromoprotein
Answer» Correct Answer - A (a) Peptone is a derived protein. Others are conjugated proteins.

Discussion

2320.	Read the following statements and find out the incorrect statement.A. Rate can also be called velocity if the direction is specified.B. A general rule of thumb is that rate double or decrease by half for every `10^(@)C` change in either direction.C. Endothermic reactions are also called spontaneous reaction while an exothermic reaction is called energy requiring reaction.D. Energy difference between substrate and transition state is called activation energy.
Answer» Correct Answer - C (C) Rate can also be called velocity if the direction is specified. A general rule of thumb is the rate doubles or decrease by half for every `10^(@)` C change in either direction. Exothermic reactions are also callled spontaneous reaction while an exothermic reaction is called energy required reactions. Energy difference between substrate and transition state is called activation energy.

Discussion

2321.	Which of the following is not a disaccharideA. MaltoseB. StarchC. SucroseD. Lactose
Answer» Correct Answer - B (b) Disaccharides composed of two unit of monosaccharides e.g. sucrose, maltose and lactose ets. Starch is the most common storage polysaccharide in plants.

Discussion

2322.	The following reaction is a/an `Ba(OH)_(2)+H_(2)SO_(4) to BaSO_(4)+2H_(2)O`A. Physical processB. Inorganic chemical reactionC. Organic chemical reactionD. Both A and C
Answer» Correct Answer - B (B) This reaction is an inorganic chemical reaction `Ba(OH)_(2)+H_(2)SO_(4) to BaSO_(4)+2H_(2)O`

Discussion

2323.	In which form does the food transported in plantsA. SucroseB. FructoseC. GlucoseD. Lactose
Answer» Correct Answer - A (a) The union makes sucrose more stable than other sugars because both its anomeric carbon atoms are protected from oxidative attack. It is because of this reason, sucrose is used for transporting carbohydrates in plants.

Discussion

2324.	Hydrolysis of starch into glucose is a/anA. Physical processB. Inorganic chemical reactionC. Organic chemical reactionD. Both A and C
Answer» Correct Answer - C (C) Hydrolysis of starch into glucose in an organic chemical reaction.

Discussion

2325.	High content of lysine is present inA. WheatB. AppleC. MaizeD. Banana
Answer» Correct Answer - A (a) Lysine is an essential amino acid found in wheat. Which is not synthesized in the human body.

Discussion

2326.	Which one of the following is /are a physical process ?A. Change in shape without breaking of bondsB. Change in state of matter ( when ice melts into water, or when water becomes a vapour )C. Hydrolysis of starch into glucoseD. Both A and B
Answer» Correct Answer - D (D) Change in shape without breaking of bonds and change in state of matter ( when ice melts into water, or when water becomes a vapour ) are physical processes.

Discussion

2327.	Largest physical and chemical molecules are Or What are the most diversed molecules in the cell Or No cell could live withoutA. CarbohydratesB. LipidsC. ProteinsD. Nucleic acids
Answer» Correct Answer - C (c) No cell could live without protein because proteins are building block of the body.

Discussion

2328.	How are the carbohydrates classified ?
Answer» On the basis of hydrolysis, carbohydrates can be divided into three major classes : (i) Monosaccharides: A carbohydrate that cannot be hydrolysed further to simple unit of polyhydroxy aldehyde or ketone is called as monosaccharide. e.g., Glucose, fructose, etc. (ii) Oligosaccharides: A carbohydrate that yield two to ten monosaccharide units on hydrolysis is called as oligosaccharide. e.g., sucrose and maltose. (iii) Polysaccharides : A carbohydrate which yield a large number of monosaccharide units on hydrolysis is called as polysaccharide. e.g., starch, cellulose

2328.

How are the carbohydrates classified ?

Answer»

On the basis of hydrolysis, carbohydrates can be divided into three major classes :

(i) Monosaccharides: A carbohydrate that cannot be hydrolysed further to simple unit of polyhydroxy aldehyde or ketone is called as monosaccharide.

e.g., Glucose, fructose, etc.

(ii) Oligosaccharides: A carbohydrate that yield two to ten monosaccharide units on hydrolysis is called as oligosaccharide.

e.g., sucrose and maltose.

(iii) Polysaccharides : A carbohydrate which yield a large number of monosaccharide units on hydrolysis is called as polysaccharide.

e.g., starch, cellulose

Discussion

2329.	Wtite about polysaccharides with starch and cellulose as examples.
Answer» Starch : Polysaccharides : The saccharides which on hydrolysis to form large number of monosaccharides are called polysaccharides Eg: Starch and cellulose Starch : `to` Starch is the most important dietary source for human beings. `to` Vegetables , roots , cereals are important sources of starch. `to` It is a polymer of `alpha` - glucose. `to` It is constituted by two components Amylose and amylopectin Amylose : `to` It constitutes 15-20% of starch `to` Amylose is water soluble component. `to` Amylose is a branched chain with 200-1000 `alpha` - D- glucose units held by C-1 to C-4 glycosidic linkage . Amylopectin : `to` Amylopectin constitutes 80-85% of starch. `to` It is a branched chain polymer of `alpha` - glucose units in which chain is formed by C-1 to C-4 glycosidic linkage whereas branching occurs by C-1 to C-6 glycosidic linkage Cellulose : `to` Cellulose occurs in plants and it is the most abundant organic substance. `to` It is a major constituent of cell wall of plant cells `to` Cellulose is a straight chain polysaccharide composed only `beta` - D - glucose units which are joined by glycosidic linkage between C-1 of one glucose and C-4 of the next glucose .

Discussion

2330.	Cellulose, starch and glycogen are all the polysaccharides which contain:A. amylopectin and glycogenB. amylose and glycogenC. amylose and amylopectinD. cellulose and glycogen
Answer» Correct Answer - C Starch is a mixture of two components , one is water soluble component called amylose (20%) and another is water insoluble componenet called amylopectin (80%)

Discussion

2331.	How are the carbohydrates classified on the basis of their taste
Answer» Taste : On the basis of their taste carbohydrates are classified into i) sugars, ii) Non - sugars . i) sugars : Carbohydrates which are sweet in taste . Eg : Sucrose. ii) non sugars : Carbohydrates which are not sweet in taste . Eg : cellulose

Discussion

2332.	Amino acids udergo internal acid base reaction to form:A. am amideB. a lactumC. zwitter ionD. a peptide
Answer» Correct Answer - C

Discussion

2333.	An amino acid usually shows its lowest solubility in water:A. in acidic solutionB. in basic solutionC. at pH 7D. at isoelectric point
Answer» Correct Answer - D

Discussion

2334.	Why an amino acid is usually solid at room temperature.
Answer» Correct Answer - Due to its existence in the form of zwitter ion, there exists a very strong intermolecular attaction which is responsible for high melting point of amino acid. Due to its existence in the form of zwitter ion, there exists a very strong intermolecular attaction which is responsible for high melting point of amino acid.

Discussion

2335.	The melting point and solubility `("in" H_(2) O)` of amino acids are generally high. Explain why ?
Answer» Correct Answer - Amino acids contain two functional groups which can make H-bonds that is the reason why they have high m.p and solubility in water. Amino acids contain two functional groups which can make H-bonds that is the reason why they have high m.p and solubility in water.

Discussion

2336.	Amino acids show amphotric behaviour. Explain why ?
Answer» Correct Answer - Due to the presence of both acids and basic groups in the same molecule. In aqueous solution `-COOH` group can lose a proton and `-NH_(2)` group can accept a proton and forms zwitter ion. In zwitter ionic form amino acids show amphoteric behaviour. Due to the presence of both acids and basic groups in the same molecule. In aqueous solution `-COOH` group can lose a proton and `-NH_(2)` group can accept a proton and forms zwitter ion. In zwitter ionic form amino acids show amphoteric behaviour.

Discussion

2337.	What do you mean by the following also give example (a) Non-essemtial amino acids (b) Essential amino acids.
Answer» Correct Answer - (a) The amino acids which can be synthesised in the body-non-essential ex. Glycine,Alanine (b) The amino acids which cannot be synthesised and must be obtained through diet. Ex. Valine, leucine. (a) The amino acids which can be synthesised in the body-non-essential ex. Glycine,Alanine (b) The amino acids which cannot be synthesised and must be obtained through diet. Ex. Valine, leucine.

Discussion

2338.	What are amino acids ? Give two examples .
Answer» The organic compound which contain amino `(-NH_2)` functional group and carboxyl (-COOH) functional group are called amino acids Eg: Glycine, Alanine etc.

Discussion

2339.	What is zwitter ion ? Give an example.
Answer» Zwitter ion : In aqueous solution of amino acids, the carboxyl group can lose a proton and amino acid can accept that portion to from a dipolar ion. This ion is called as zwitter ion . `R-undersetoverset(\|)(underset(..)NH_2)(CH)-oversetunderset(\|\|)(O)C-OHiffR-undersetoverset(\|)(underset("zwitter ion")(+NH_3))(CH)-oversetunderset(\|\|)(O)(C)-O^-`

Discussion

2340.	Explain the structure of glycogen.
Answer» The glucose is stored in animal body in the form of glycogen. It is also known as animal starch because its structure is similar to amylopectin. Glycogen is highly branched. Whenever the body is required glucose, enzymes breaks the glycogen to glucose.

2340.

Explain the structure of glycogen.

Answer»

The glucose is stored in animal body in the form of glycogen.

It is also known as animal starch because its structure is similar to amylopectin.

Glycogen is highly branched.

Whenever the body is required glucose, enzymes breaks the glycogen to glucose.

Discussion

2341.	How is glycogen different from starch?
Answer» Starch is the main storage molecules of plants whereas glycogen is the main storage molecule of animals. Starch is found in cereals, roots, tubers, etc. Glycogen is present in liver, muscles and brain.

2341.

How is glycogen different from starch?

Answer»

Starch is the main storage molecules of plants whereas glycogen is the main storage molecule of animals.

Starch is found in cereals, roots, tubers, etc.

Glycogen is present in liver, muscles and brain.

Discussion

2342.	Define the term : Protein OR What are proteins?
Answer» Chemically proteins are polyamides which are high molecular weight polymers of the monomer units i.e. α-amino acids. OR It can also be defined as Proteins are the biopolymers of a large number of a-amino acids and they are naturally occurring polymeric nitrogenous organic compounds containing 16% nitrogen and peptide linkages (-CO-NH-).

2342.

Define the term : Protein OR What are proteins?

Answer»

Chemically proteins are polyamides which are high molecular weight polymers of the monomer units i.e. α-amino acids.

OR

It can also be defined as Proteins are the biopolymers of a large number of a-amino acids and they are naturally occurring polymeric nitrogenous organic compounds containing 16% nitrogen and peptide linkages (-CO-NH-).

Discussion

2343.	Write the common sources of protein.
Answer» Common sources of proteins are milk, pulses, peanuts, eggs, fishes, cheese, cereals, etc. They are also the principal materials of muscle, nerves, tendons, skin, blood, enzymes, many hormones and antibiotics.

2343.

Write the common sources of protein.

Answer»

Common sources of proteins are milk, pulses, peanuts, eggs, fishes, cheese, cereals, etc.

They are also the principal materials of muscle, nerves, tendons, skin, blood, enzymes, many hormones and antibiotics.

Discussion

2344.	The catalytic efficiency of two different enzymes can be compared by theA. ProductB. Molecular sizeC. `K_(m)`valueD. Optimum value
Answer» Correct Answer - C (C) Catalytic efficiency of two different enzymes is compared by their `K_(m)` value.

Discussion

2345.	End product of action of enzyme cellulase over cellulose isA. GlucoseB. SucroseC. StarchD. Glycogen
Answer» Correct Answer - A (A) End product of action of enzyme cellulase over cellulose is glucose.

Discussion

2346.	A saturated fatty acid isA. Arachidonic acidB. Stearic acidC. Oleic acidD. Linoleic acid
Answer» Correct Answer - B (B) A saturated fatty acid is stearic acid.

Discussion

2347.	Which is mismatched ?A. Agar -Polymer of glucose and sulphur containing carbohydratesB. Chitin- Polymer of glucosamineC. Lipopolysaccharides-A complex of lipid and polysaccharideD. Glycogen-Polymer of glucose.
Answer» Correct Answer - A (A) Chitin-Polymer of glucosamine Lipopolysaccharides- A complex of lipid and polysaccharide Glycogen- Polymer of glucose

Discussion

2348.	Name the organisma which produce the enzyme cellulase.
Answer» Some bacteria and ciliates residing in cattle gut and certain flagellates living in termite gut.

Discussion

2349.	Assertion : The living state is an equilibrium steady state ot be able to perform work. Reason : Living process is a constant effort to prevent falling into non-equilibrium.
Answer» Correct Answer - D The living systems maintain the concentration of biomolecules because they are in metabolic flux, always remaining in non-equilibrium steady state where equilibrium is seldom achieved. No work can be carried out in equilibrium state. Therefore, living systems are regularly receiving an input of energy to prevent reaching an equilibrium and remain always in non-equilibrium steady state. Energy is obtained from metabolism. Metabolism and living state are therefore complementary and synonymous.

Discussion

2350.	Explain the classes of carbohydrates with examples.
Answer» Based on number of sugar units, carbohydrates are classified into three types namely, monosaccharides, disaccharides and polysaccharides. 1. Monosaccharides: a. Monosaccharides are the simplest sugars having crystalline structure, sweet taste and soluble in water. b. They cannot be further hydrolyzed into smaller molecules. c. They are the building blocks or monomers of complex carbohydrates. d. They have the general molecular formula (CH₂O)n, where n can be 3, 4, 5, 6 and 7. e. They can be classified as triose, tetrose, pentose, etc. f. Monosaccharides containing the aldehyde (- CHO) group are classified as aldoses e.g. glucose, xylose, and those with a ketone(-C=0) group are classified as ketoses. E.g. ribulose, fructose. 2. Disaccharides: a. Disaccharide is formed when two monosaccharide react by condensation reaction releasing a water molecule. This process requires energy. b. A glycosidic bond forms and holds the two monosaccharide units together. c. Sucrose, lactose and maltose are examples of disaccharides. d. Sucrose is a nonreducing sugar since it lacks free aldehyde or ketone group. e. Lactose and maltose are reducing sugars. f. Lactose also exists in beta form, which is made from P-galactose and p-glucose. g. Disaccharides are soluble in water, but they are too big to pass through the cell membrane by diffusion. 3. Polysaccharides: a. Monosaccharides can undergo a series of condensation reactions, adding one unit after the other to the chain till a very large molecule (polysaccharide) is formed. This is called polymerization. b. Polysaccharides are broken down by hydrolysis into monosaccharides. c. The properties of a polysaccharide molecule depends on its length, branching, folding and coiling. d. Examples: Starch, glycogen, cellulose.

2350.

Explain the classes of carbohydrates with examples.

Answer»

Based on number of sugar units, carbohydrates are classified into three types namely, monosaccharides, disaccharides and polysaccharides.

1. Monosaccharides:

a. Monosaccharides are the simplest sugars having crystalline structure, sweet taste and soluble in water.

b. They cannot be further hydrolyzed into smaller molecules.

c. They are the building blocks or monomers of complex carbohydrates.

d. They have the general molecular formula (CH₂O)n, where n can be 3, 4, 5, 6 and 7.

e. They can be classified as triose, tetrose, pentose, etc.

f. Monosaccharides containing the aldehyde (- CHO) group are classified as aldoses

e.g. glucose, xylose, and those with a ketone(-C=0) group are classified as ketoses.

E.g. ribulose, fructose.

2. Disaccharides:

a. Disaccharide is formed when two monosaccharide react by condensation reaction releasing a water molecule. This process requires energy.

b. A glycosidic bond forms and holds the two monosaccharide units together.

c. Sucrose, lactose and maltose are examples of disaccharides.

d. Sucrose is a nonreducing sugar since it lacks free aldehyde or ketone group.

e. Lactose and maltose are reducing sugars.

f. Lactose also exists in beta form, which is made from P-galactose and p-glucose.

g. Disaccharides are soluble in water, but they are too big to pass through the cell membrane by diffusion.

3. Polysaccharides:

a. Monosaccharides can undergo a series of condensation reactions, adding one unit after the other to the chain till a very large molecule (polysaccharide) is formed. This is called polymerization.

b. Polysaccharides are broken down by hydrolysis into monosaccharides.

c. The properties of a polysaccharide molecule depends on its length, branching, folding and coiling.

d. Examples: Starch, glycogen, cellulose.

Discussion

Explore topic-wise InterviewSolutions in .

At the isoelectric point, amino acids are present asA. `H_(2)N-CHR-CO OH`B. `H_(3)overset(+)(N)-CHR-CO OH`C. `NH_(2)-CHR-CO O^(-)`D. `H_(3)N^(+) CHRCO O^(-)`

At the isoelectric point, amino acids are present asA. `H_(2)N-CHR-CO OH`B. `overset(+)(N)H_(3)-CHR-CO O^(-)`C. `NH_(2)-CHR-CO O^(-)`D. `overset(+)(N)H_(3)-CHR-CO OH`

Which of the following is a fibrous protein?A. HaemoglobinB. KeratinC. AlbuminD. Enzymes

Which of the following is a fibrous protein?A. HaemoglobinB. albuminC. keratinD. Enzymes.

Cell membranes are mainly composed of `:`A. phospholipidsB. fatsC. proteinsD. carbohydrates

Mention any five secondary metabolites with two examples for each.

Mention any five proteins with their functions.

What is an inhibitor of an enzyme action?

Define activation energy of reaction.

What is active site’ of an enzyme?

What is a substrate In an enzyme action?

What is the function of carbonic anhydrase?

Most abundant mineral of animal body isA. ironB. sodiumC. potassiumD. calcium

Cabonic anhydrase accelerate the rate of reaction by aboutA. 200 timesB. 6,00,000 timesC. 10 million timesD. 10 billion times

Which one of the following statements is wrongA. Sucrose is a disaccharideB. Cellulose is a poysaccharideC. Uracil is a pyrimidineD. Glycine is a sulphur containing amino acid

Which of the following fats is least harmful for heartA. Saturated fatB. CholesterolC. Polyunsaturated fatD. Oils

Which of the following is conjugated proteinA. ChromoproteinsB. PhosphoproteinC. GlycoproteinD. All of the above

The following reaction is catalysed by `CO_(2)+H_(2)O to H_(2)CO_(3)`A. CarboxypeptidaseB. Carbonic anhydraseC. Carbonic dehydrogenaseD. Both A and B

Which of the following is not conjugated proteinA. PeptoneB. PhosphoproteinC. LipoproteinD. Chromoprotein

Which of the following is not a disaccharideA. MaltoseB. StarchC. SucroseD. Lactose

The following reaction is a/an `Ba(OH)_(2)+H_(2)SO_(4) to BaSO_(4)+2H_(2)O`A. Physical processB. Inorganic chemical reactionC. Organic chemical reactionD. Both A and C

In which form does the food transported in plantsA. SucroseB. FructoseC. GlucoseD. Lactose

Hydrolysis of starch into glucose is a/anA. Physical processB. Inorganic chemical reactionC. Organic chemical reactionD. Both A and C

High content of lysine is present inA. WheatB. AppleC. MaizeD. Banana

Which one of the following is /are a physical process ?A. Change in shape without breaking of bondsB. Change in state of matter ( when ice melts into water, or when water becomes a vapour )C. Hydrolysis of starch into glucoseD. Both A and B

Largest physical and chemical molecules are Or What are the most diversed molecules in the cell Or No cell could live withoutA. CarbohydratesB. LipidsC. ProteinsD. Nucleic acids

How are the carbohydrates classified ?

Wtite about polysaccharides with starch and cellulose as examples.

Cellulose, starch and glycogen are all the polysaccharides which contain:A. amylopectin and glycogenB. amylose and glycogenC. amylose and amylopectinD. cellulose and glycogen

How are the carbohydrates classified on the basis of their taste

Amino acids udergo internal acid base reaction to form:A. am amideB. a lactumC. zwitter ionD. a peptide

An amino acid usually shows its lowest solubility in water:A. in acidic solutionB. in basic solutionC. at pH 7D. at isoelectric point

Why an amino acid is usually solid at room temperature.

The melting point and solubility `("in" H_(2) O)` of amino acids are generally high. Explain why ?

Amino acids show amphotric behaviour. Explain why ?

What do you mean by the following also give example (a) Non-essemtial amino acids (b) Essential amino acids.

What are amino acids ? Give two examples .

What is zwitter ion ? Give an example.

Explain the structure of glycogen.

How is glycogen different from starch?

Define the term : Protein OR What are proteins?

Write the common sources of protein.

The catalytic efficiency of two different enzymes can be compared by theA. ProductB. Molecular sizeC. `K_(m)`valueD. Optimum value

End product of action of enzyme cellulase over cellulose isA. GlucoseB. SucroseC. StarchD. Glycogen

A saturated fatty acid isA. Arachidonic acidB. Stearic acidC. Oleic acidD. Linoleic acid

Which is mismatched ?A. Agar -Polymer of glucose and sulphur containing carbohydratesB. Chitin- Polymer of glucosamineC. Lipopolysaccharides-A complex of lipid and polysaccharideD. Glycogen-Polymer of glucose.

Name the organisma which produce the enzyme cellulase.

Assertion : The living state is an equilibrium steady state ot be able to perform work. Reason : Living process is a constant effort to prevent falling into non-equilibrium.

Explain the classes of carbohydrates with examples.