Proteins

Q.

Why do we need food?

Q. What is fumigation?

Q.

List 5 reasons why food is essential.

Q. How many essential amino acids are required in the human body?

1. Eleven
2. Nine
3. Ten
4. Twenty

Q.

What are fibrous and globular proteins?

Q.

Which of the following nutrients is required for growth and repair of our body?

1. Fats
2. Carbohydrates
3. Proteins
4. Minerals

Q.

AUG codes for

1. Valine

2. Histidine

3. Phenylalanine

4. Methionine

Q.

Egg, milk, and meat are good sources of

1. Protein

2. Fat

3. Minerals

4. Carbohydrates

Q.

Choose the odd one out of the following terms given and name the category to which others belong:

(i) Nucleosome, chromatin fibre, mitochondria, chromosome.

(ii) Helically coiled, antiparallel strands, peptide bond, double-strand.

(iii) Thymine. Cytosine, Adenine, Pepsin.

(iv) Phosphate, RNA, sugar, nitrogen base.

Q.

What is protein absorption?

Q. Briefly explain about secretory and non secretory proteins

Q. In brief state what happens when
a) dry apricot are left for sometime in pure water and later transferred to sugar
b) a red blood cell is kept in a concentrated saline solution.
c) plasma membrane breaks down.
d) Rio leaf are boiled in a water first and then a drop of sugar solution is put on it.
e) Golgi apparatus is removed from the cell.

Q.

Which of the following represents the action of insulin?

1. Decreases blood glucose levels by forming glycogen

2. Increases blood glucose levels by stimulating glucagon production

3. Increases blood glucose levels by hydrolysis of glycogen

4. Increases blood glucose levels by promoting cellular uptake of glucose

Q.

Why are mitochondria called the powerhouse of the cell?

Q. Whats is the difference between nutrition and nutrient

Q.

What are proteins made up of?

Q.

Write about extracellular matrix.

Q.

Our hair and nails contain

1. Protein

2. Calcium

3. Chlorine

4. Phosphorus

Q.

What stimulates the release of insulin?

Q.

Which among the following organelle helps in protein synthesis?

1. (a) Mitochondria

2. (b) Lysosomes

3. (c) Ribosome

4. (d) Nucleus

Q.

what is endosmosis and exosmosis? explain with a example?

Q.

The repeating units of proteins are called fatty acids

1. False

2. True

Q.

Ribosome consist of:

1. (a) DNA and protein

2. (b) RNA and protein

3. (c) RNA and amino acids

4. (d) RNA and DNA

Q.

Which of the following secrete pancreatic juice?

1. Pancreas

2. Liver

3. Thymus

4. Pituitary

Q.

The primary function of leucoplasts is ________.

Q.

NAME THE FOLLOWING

Two nucleic acids present in the cell.

Q.

The important biomolecule found inside the nucleus is

1. Carbohydrates

2. Nucleic acids

3. Lipids

4. Proteins

Q. Plasma Membrane is made up of___________.

1. A protein layer between two lipid layers
2. A lipid layer between two protein layers
3. A protein, lipid and cellulose layer
4. Bimolecular lipid layer surrounded by protein layer

Q. Briefly describe the structure of ribosomes and how they function inside a cell.

Q.

In animal cells, mitochondria are the only cell organelle outside the nucleus that contains DNA.

1. True
2. False