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2251.

In order to test the peptide bond in decapeptide, how many of the following tests can be carried out:1. Ninhydrin test 2. Biuret test 3. Xanthoproteic test 4. Ceric ammonium test5. Carbylamine test

Answer» In order to test the peptide bond in decapeptide, how many of the following tests can be carried out:

1. Ninhydrin test

2. Biuret test

3. Xanthoproteic test

4. Ceric ammonium test

5. Carbylamine test
2252.

Which of the following is a parasitic protozoan?

Answer»

Which of the following is a parasitic protozoan?


2253.

Choose the correct option regarding the structure of chloroplast based on the statments given.Statement 1: The fluid part of the chloroplast is the stroma lamellae.Statement 2: The membranous sacs arranged one above the other form the grana.Statement 3: The membrane bound structures joining the grana are the stroma.

Answer»

Choose the correct option regarding the structure of chloroplast based on the statments given.


Statement 1: The fluid part of the chloroplast is the stroma lamellae.



Statement 2: The membranous sacs arranged one above the other form the grana.



Statement 3: The membrane bound structures joining the grana are the stroma.



2254.

With reference to the poem, how can you look after your teeth?

Answer»

With
reference
to the poem, how can you look
after your teeth?

2255.

9. Why dipole moment of AgI is zero

Answer» 9. Why dipole moment of AgI is zero
2256.

''अपनेवेगमेंउल्काकोलजाताहुआवहआँखोंसेओझलहोगया।''उल्काक्याहोतीहै?उल्काऔरग्रहोंमेंकौन-कौनसीसमानताएँऔरअंतरहोतेहैं?

Answer»

''अपने
वेग
में
उल्का
को
लजाता
हुआ
वह
आँखों
से
ओझल
हो
गया।''
उल्का
क्या
होती
है?
उल्का
और
ग्रहों
में
कौन-कौन
सी
समानताएँ
और
अंतर
होते
हैं?

2257.

Which of the following is not a factor for which variety improvement is done?

Answer»

Which of the following is not a factor for which variety improvement is done?



2258.

A complete (or perfect) flower is one which contains all the _________ types of floral structure. ​​

Answer»

A complete (or perfect) flower is one which contains all the _________ types of floral structure.

​​


2259.

What kind of diseases does lack of nutrients lead to?

Answer»

What kind of diseases does lack of nutrients lead to?

2260.

13. Caco3 decomposes to give cao and CO2, if the masses of cao and CO2 produced are 5.6g and 4.4g respectively by heating 12g of an impure caco3 sample then the percentage impurity of the sample will be

Answer» 13. Caco3 decomposes to give cao and CO2, if the masses of cao and CO2 produced are 5.6g and 4.4g respectively by heating 12g of an impure caco3 sample then the percentage impurity of the sample will be
2261.

What is the function of extracellular matrix of different types of tissues (epithelial, muscular, neural, connective except blood)?

Answer» What is the function of extracellular matrix of different types of tissues (epithelial, muscular, neural, connective except blood)?
2262.

What are the fluids in our body

Answer»

What are the fluids in our body

2263.

Why does Persome feel the people pretend to be sick?

Answer»

Why
does Persome feel the people pretend to be sick?

2264.

Describe the methods of carbon replenishment of atmosphere.

Answer»

Describe the methods of carbon replenishment of atmosphere.

2265.

Which of the following conditions occur when haemoglobin becomes a stronger acid?

Answer»

Which of the following conditions occur when haemoglobin becomes a stronger acid?


2266.

Differentiate between xylem and phloem

Answer» Differentiate between xylem and phloem
2267.

Mule is a product of

Answer» Mule is a product of
2268.

75 What will happen to the freezing point when mercuric iodide is added to an aqueous solution of potassium iodide?

Answer» 75 What will happen to the freezing point when mercuric iodide is added to an aqueous solution of potassium iodide?
2269.

Question 11 Find out the false statement (a) Aves are warm blooded, egg laying and have four chambered heart (b) Aves have feather covered body, fore limbs are modified as wing and breathe through lungs. (c) Most of the mammals are viviparous. (d) Fishes, amphibians and reptiles are oviparous

Answer» Question 11
Find out the false statement

(a) Aves are warm blooded, egg laying and have four chambered heart
(b) Aves have feather covered body, fore limbs are modified as wing and breathe through lungs.
(c) Most of the mammals are viviparous.
(d) Fishes, amphibians and reptiles are oviparous
2270.

What would happen if the waste materials are not released out of the body properly?

Answer» What would happen if the waste materials are not released out of the body properly?
2271.

If the gaps in the leaf of photosynthetic plants as shown in picture below are absent , then it would lead to …………………………….

Answer»

If the gaps in the leaf of photosynthetic plants as shown in picture below are absent , then it would lead to …………………………….


2272.

What is meant by merstimatic tissues divide in a particular plane

Answer» What is meant by
merstimatic tissues divide in a particular plane
2273.

Why is the inner surface of mitochondria deeply folded?

Answer»

Why is the inner surface of mitochondria deeply folded?


2274.

How do birds reproduce?,

Answer» How do birds reproduce?,
2275.

How soil pollution and soil erosion could be prevented?

Answer» How soil pollution and soil erosion could be prevented?
2276.

The convict says, “I am too old a bird to be caught with chaff.” What does he mean by this statement?

Answer»

The
convict says, “I am too old a bird to be caught with chaff.”
What does he mean by this statement?

2277.

Why is immune system essential for our health? [3 MARKS]

Answer»

Why is immune system essential for our health? [3 MARKS]

2278.

Question 17Which of these organisms have a cell wall that isn't made of cellulose?(a) Bacteria(b) Hydrilla(c) Mango tree(d) Cactus

Answer»

Question 17

Which of these organisms have a cell wall that isn't made of cellulose?




(a) Bacteria

(b) Hydrilla

(c) Mango tree

(d) Cactus



2279.

what is ortho effect

Answer» what is ortho effect
2280.

What is the difference between plasma and blood?

Answer»

What is the difference between plasma and blood?

2281.

What is habitat of all echinoderms?

Answer»

What is habitat of all echinoderms?

2282.

What is a name of the book in which Robert Hooke published his observations about cork cells?

Answer»

What is a name of the book in which Robert Hooke published his observations about cork cells?

2283.

1. Find out as much as you can about different kinds of snakes (from books in the library, or from the Internet). Are they all poisonous? Find out the names of some poisonous snakes. 2. Look for information on how to find out whether a snake is harmful. 3. As you know, from the previous lesson you have just read, there are people in our country who have traditional knowledge about snakes, who even catch poisonous snakes with practically bare hands. Can you find out something more about them?

Answer»

1. Find out as much as you can about different kinds of snakes (from books in the library, or from the Internet). Are they all poisonous? Find out the names of some poisonous snakes.



2. Look for information on how to find out whether a snake is harmful.



3. As you know, from the previous lesson you have just read, there are people in our country who have traditional knowledge about snakes, who even catch poisonous snakes with practically bare hands. Can you find out something more about them?

2284.

The table below shows the differences between inhaled air and exhaled air:Answer the following questions with respect to exhaled air: Why has its oxygen content decreased? Why is there no change in the percentage of nitrogen?

Answer» The table below shows the differences between inhaled air and exhaled air:





Answer the following questions with respect to exhaled air:

  1. Why has its oxygen content decreased?

  2. Why is there no change in the percentage of nitrogen?



2285.

expain 1)random DNA fragment method 2)formation of complmantary DNA 3)artificial gene synthesis

Answer» expain 1)random DNA fragment method 2)formation of complmantary DNA 3)artificial gene synthesis
2286.

50 Which of the following cannot evolve H2 from dilacid?(1) Pt(3) Mg(2) Zn(4) Pb

Answer» 50 Which of the following cannot evolve H2 from dilacid?(1) Pt(3) Mg(2) Zn(4) Pb
2287.

Sometimes our dog begins to bark without any reason . Can you explain ,why?

Answer» Sometimes our dog begins to bark without any reason . Can you explain ,why?
2288.

Why do we keep both snake and turtle in the same class?

Answer» Why do we keep both snake and turtle in the same class?
2289.

Name one bacterial and one viral desease of poultry respectively.

Answer»

Name one bacterial and one viral desease of poultry respectively.

2290.

When ever I am not in a deep sleep or when I am taking a short nap, i will not be able to hear even the sound of the person next to me? Why does this happen?

Answer»

When ever I am not in a deep sleep or when I am taking a short nap, i will not be able to hear even the sound of the person next to me? Why does this happen?

2291.

Discuss the effects when a plant cell is kept in hypotonic and hypertonic solution. Can you please help me with the effects ??

Answer»

Discuss the effects when a plant cell is kept in hypotonic and hypertonic solution.

Can you please help me with the effects ??

2292.

A leguminous plant grown in an autoclaved, sterilized soil fails to produce root nodules because

Answer» A leguminous plant grown in an autoclaved, sterilized soil fails to produce root nodules because
2293.

Why is the cell called the structural and functional unit of life?

Answer»

Why is the cell called the structural and functional unit of life?



2294.

During an action potential,what is the role of calcium?

Answer»

During an action potential,what is the role of calcium?


2295.

Emasculation of pea plants helped Mendel to _________.

Answer»

Emasculation of pea plants helped Mendel to _________.



2296.

Which of the following can survive without sunlight?

Answer»

Which of the following can survive without sunlight?

2297.

Define nervous tissue

Answer»

Define nervous tissue

2298.

I got to know that in dengue people vomite blood.i want to ask how blood is able to enter digestive track.??

Answer» I got to know that in dengue people vomite blood.i want to ask how blood is able to enter digestive track.??
2299.

1 )define metamerism 2) which type of Skeleton present in Porifera 3) name the sensory organ present in arthropoda 4) what is Redula 5) what are parasitic adaptation in flatw

Answer»

1 )define metamerism

2) which type of Skeleton present in Porifera

3) name the sensory organ present in arthropoda

4) what is Redula

5) what are parasitic adaptation in flatw

2300.

What does "becoming less alive" imply?

Answer» What does "becoming less alive" imply?