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401.

In opuntia, in night the R.Q. will beA. OneB. More than oneC. ZeroD. Mitochondria.

Answer» Correct Answer - C
402.

Fish in the aquarium respires through A) gills B) lungs C) air tubes D) skin

Answer»

Fish in the aquarium respires through gills

403.

When protein is aerobically oxidised, the R.Q. value will beA. OneB. ZeroC. More than oneD. Less than one

Answer» Correct Answer - D
404.

Which of the following is the only 5-carbon compound formed during Krebs cycleA. Malic acidB. Succinic acidC. cis-aconitic acidD. `alpha`-ketoglutaric acid.

Answer» Correct Answer - D
405.

5-carbon dicarboxylic compound of Krebs cycle isA. MalateB. FumarateC. SuccinateD. `alpha`-ketoglutarate.

Answer» Correct Answer - D
406.

Cyt `a_(3)` possessesA. Fe and MgB. Cu and MgC. Fe and CuD. Fe, Mg and Cu.

Answer» Correct Answer - A
407.

Enzymes taking part in glycolysis are present inA. MitochondriaB. CytoplasmC. Both mitochondria and cytoplasmD. Vacuole.

Answer» Correct Answer - B
408.

External respiration isA. Respiration in skin cellsB. Gaseous exchange between organism and external environmentC. Gaseous exchange between cells and tissue fluidD. Both B and C

Answer» Correct Answer - B
409.

Krebs cycle starts with the formation of six carbon compound by reaction betweenA. Malic acid any acetyl CoAB. Succinic acid and pyruvic acidC. Fumaric acid and pyruvic acidD. Oxalo-acetic acid and acetyl CoA.

Answer» Correct Answer - C
410.

Two pairs of electrons passing from NADH molecules to oxygen generateA. 2 ATPB. 3 ATPC. 4 ATPD. 6 ATP

Answer» Correct Answer - D
411.

RQ of protein isA. 0.7B. 1C. 0.9D. More than one.

Answer» Correct Answer - C
412.

Who is credited with study of external respiration for the first timeA. DutrochetB. PasteurC. CruickashankD. Lavosier.

Answer» Correct Answer - D
413.

The amount of energy given by one mole of ATP isA. 7.3 kcalB. 721 kcalC. 7600 kcalD. 1000 kcal.

Answer» Correct Answer - A
414.

Common immediate source of energy in celluar activity isA. DNAB. ATPC. RNAD. NAD

Answer» Correct Answer - B
415.

Which of the following two enzymes catalye the release of `CO_(2)` form the substrate (i) `alpha`-ketogulatric acid dehydrogenase (ii) Pyruvate dehydrogenase (iii) Succinic thiokinase , (iv) EnolaseA. I, iiB. iii, ivC. I, ivD. ii, iii

Answer» Correct Answer - A
416.

In citric acid cycle, the step not using dehydrogenase enzymes isA. Malic acid to oxaloacetateB. Succinate to fumarateC. Oxaloacetate to citric acidD. Citric acid to `alpha`-ketoglutarate.

Answer» Correct Answer - C
417.

Respiration isA. Anabolic and exergonicB. Anabolic acid endergonicC. Catabolic and exergonicD. Catabolic and endergonic

Answer» Correct Answer - C
418.

Conversion of pyruvic acid into ethyl alcohol is facilitated by enzyme(s)A. CarboxylaseB. PhosphataseC. DehydrogenaseD. Decarboxylase and dehydrogenase.

Answer» Correct Answer - D
419.

Respiratory Organs in Different Organisms

Answer» Lungs, trachea and gills
420.

In plants gaseous exchange occurs through ?

Answer» Stomata and intercellular spaces in the leaves, and lenticles
421.

What is the full form of ATP? How is it formed?

Answer»

I) ATP stands for Adenosine triphosphate. 

2) ATP is used to supply energy in the cells for the carrying all the metabolic processes.

422.

The most common respiratory substrate isA. GlucoseB. SucroseC. MaltoseD. Glycogen

Answer» Correct Answer - A
423.

Name the structure/organs in plants that are used for gaseous exchangeA. StomataB. GillsC. LugsD. Alveoli

Answer» Correct Answer - A
424.

In floating respiration the substrates are:(a) carbohydrate or protein (b) carbohydrate or fat (c) protein or fat (d) none of the above

Answer»

(b) carbohydrate or fat

425.

What are the other areas on the plant body through which gaseous exchange take place?

Answer»

The areas on the plant body through which geseous exchange take place are the surface of roots, lenticels on the stem.

426.

Gaseous exchange takes place within the lungs by a process called: A) osmosis B) diffusion C) both A and B D) none of these

Answer»

C) both A and B

427.

What does Fractional distillation mean?

Answer»

Fractional distillation: It is the separation of a mixture into its component parts, or fractions, such as in separating chemical compounds by their boiling point by heating them in to temperature at which one or more fractions of the compound will evaporate.

428.

Give definition of Bronchial respiration.

Answer»

Bronchial respiration: Respiration that occurs through gills is called bronchial respiration. Ex: Fish

429.

What is gaseous exchange?

Answer»

The gaseous exchange takes place mainly in the stomata of leaves. The gaseous exchange also takes place on the plants like the surface of roots, lenticels on the stem.

430.

What is meant by protoplasmic respiration?

Answer»

Respiration utilizing protein as a respiratory substrate, it is called protoplasmic respiration. Protoplasmic respiration is rare and it depletes structural and functional proteins of protoplasm and liberates toxic ammonia.

431.

Floating respiration is respirationA. Occurring in cytosolB. Using carbohydrate as substrateC. Employing fat as respiratory substrateD. Both B and C

Answer» Correct Answer - D
432.

Give brief definition of photosynthesis? 

Answer»

Photosynthesis is a process of synthesis or an anabolic process that occurs in chloroplasts whereas respiration is a catabolic process that breakdown down complex food molecules in cells.

433.

Protoplasmic respiration is respirationA. Occurring in protoplasmB. Controlled by genetic factorsC. Occurring outside the mitochondiraD. Employing proteins as respiratory substrate.

Answer» Correct Answer - D
434.

Choose the correct one :b) C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy A) (a) is photosynthesis (b) is respiration B) (b) is respiration (a) is photosynthesisC) (a) & (b) both photosynthesis D) (a) & (b) booth respiration

Answer»

A) (a) is photosynthesis (b) is respiration

435.

Energy released per gram would beA. Highest when Wheat starch is respiratory substrateB. Highest when Potato starch is respiratory substrateC. Same in all the cases.D.

Answer» Correct Answer - D
436.

How Respiration occurs?

Answer»

Respiration occurs in the cytoplasm and mitochondria where carbohydrates are burned to produce energy.

437.

Biological oxidation of respiratory substrate causesA. Gain of oxygenB. Gain of hydrogenC. Loss of oxygenD. Loss of hydrogen.

Answer» Correct Answer - D
438.

Find the correct pair: A) Photosynthesis – Anabolic process B) Respiration – Catabolic process C) Pyruvate – 6 carbon compound D) Both A and B

Answer»

(D) Both A and B

439.

The following process is essential for plant’s metabolism A) Photosynthesis B) Respiration C) Excretion D) A & B

Answer»

Answer is (D) A & B

440.

What is Anabolic process?

Answer»

Anabolic process: it ¡s the phase of metabolism In which simple substances are synthesized into complex materials of living tissue

441.

Identify the wrong statements from the below.A. Red colour in various parts of plants is due to the presence of anthocyanin.B. Heat produced in thermogenic tissue is `51^@C`.C. Respiratory quotient also called as repiratory ratio.D. One reduced `NAD^+` equivalent to one ATPs.

Answer» Correct Answer - D
442.

Identify the wrong statements from the below.A. protoplasmic respiration is rereB. No net gaseous exchange takes place is called compensation point.C. The energy transformation concept was established by Blackman .D. The energy transformation concept was established by lipman.

Answer» Correct Answer - C
443.

Respiration is accompained byA. Increase in weightB. Decrease in weightC. No change in weightD. Decrease in size

Answer» Correct Answer - B
444.

Final product of ETS of mitochondria isA. `H_(2)O`B. `H^(+)`C. ElectronsD. All the above

Answer» Correct Answer - A
445.

Select the wrong statementA. RQ is 0.7 with tripalmitinB. Link compound between glycolysis and Krebs cycle is malic acidC. 36 ATP molecules are produced per glucose molecule in aerobic respirationD. 2 ATP molecules are produced per glucose molecule in anaerobic respiration

Answer» Correct Answer - B
446.

In ETS, complex I and IV are respectivelyA. `"NADH dehydrogenase" and FADH_(2)`B. `FADH_(2) and "NADH dehydrogenase"`C. NADH dehydrogenase and cytochrome oxidase complexD. NADH dehydrogenase and ATP synthase

Answer» Correct Answer - C
447.

C6H12O6 + 6O2 → 6H2O + Energy Fill up the following equation. A) 6CO2B) C6H12O6C) 6O2 D) 12CO2

Answer»

Answer is (A) 6CO2

448.

What is Glycolysis?

Answer»

It is the first stage of respiration. In this breakdown of glucose molecule into two molecules of 3 carbon compound called pyruvic acid or pyruvate releasing energy.

449.

Caloric value of 9.5 kacal/gm is found in case ofA. CarbohydratesB. FatsC. ProteinsD. Vitamins

Answer» Correct Answer - B
450.

Observe the following equation and find out the correct answer for “?”.(CH2O)n + O2 → CO2 + H2O + ? A) Energy is not released B) Energy is not oxidised C) More energy is released D) Ethyl Alcohol is formed with small amount energy

Answer»

C) More energy is released