Question 1

Enzymes are:

Accepted Answer

Enzymes are proteins. Enzymes are in general globular proteins.Like all proteins, enzymes are long, linear chains of amino acids that fold to produce a three-dimensional product.Most enzymes can be denatured-that is, unfolded and inactivatedby heating or chemical denaturants, which disrupt the three dimensional structure of the protein. Depending on the enzyme, denaturation may be reversible or irreversible.Option C is correct.

Question 2

........................ causes protein to denature.

Accepted Answer

One of the common methods of protein denaturation is heat. For example, boiling of egg denatures egg white. A denatured protein can no longer perform its normal biological role.

Question 3

The function of enzymes in the living system is to:

Accepted Answer

The function of enzymes in the living system is to catalysed biochemical reactions without involving in the reaction. It means enzymes speed up the rate of reaction by lowering activation energy, so the reaction proceeds faster and at the end  same enzymes can are obtained without any changes in it.Option C is correct.

Question 4

What are proteins?

Accepted Answer

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Question 5

Which are the most diverse molecules in the cell?

Accepted Answer

Proteins are macromolecules, i.e., bio-polymers made up of multiple units of amino acids. All biological proteins are synthesized from the different sequence of the same 20 amino acids. Because in proteins 20 different amino acids are used up hence, at each position of proteins there are 20 different possibilities. This gives rise to a combinatorial selection responsible for so many different types of proteins.So, the correct answer is 'Proteins'

Question 6

Enzymes are :

Accepted Answer

Enzymes are large biological molecules responsible for the thousands of metabolic processes that sustain life. They are highly selective catalysts, greatly accelerating both the rate and specificity of metabolic reactions, from the digestion of food to the synthesis of DNA. Most enzymes are proteins.

Question 7

The substance which makes up about 80% of cytoplasm and has unique structure is

Accepted Answer

The cytoplasm has two main components, such as cytosol, cell organelles, and cytoplasmic inclusions. The cytosol is a fluid or jelly-like substance and is present within the cell membrane.Cell organelles are the small structures that help the cell in performing basic functions. Cytoplasmic inclusions are tiny particles that are suspended in the cytoplasm.Since the cytoplasm has cytosol, a fluid-like and clear substance, it consists of 80 percent of water and because of this, cytoplasm acts as a medium for several cellular metabolic activities. There are remaining components such as proteins, fats, and minerals, which constitute up to 25  percent together.Therefore, water is the major constituent for a living cell and in the  living body

Question 8

Which among the following are the largest physical and chemical molecules?

Accepted Answer

Proteins are body building molecules and provide the structural framework for cells. They are biopolymers of amino acids. They are the largest physical and  chemical components of a cell. No other biomolecule possesses such immense structural and physiological diversity as proteins.

Question 9

.......... is polymerized to form proteins.

Accepted Answer

Proteins are body building molecules and provide the structural framework for cells. They are biopolymers of amino acids.

Question 10

Proteins is made up of

Accepted Answer

Proteins are biological macromolecules made up of amino acids. Amino acids are made up of carbon, hydrogen, oxygen, and nitrogen. Nitrogen is present as an amino group attached to $\alpha$-carbon atom in amino acids.There is sulphur in the side chains of few amino acids like methionine and cysteine.So, the correct answer is option B.

Biomolecules

Biology
9232 Views

Enzymes are:

........................ causes protein to denature.

The function of enzymes in the living system is to:

What are proteins?

Which are the most diverse molecules in the cell?

Enzymes are :

The substance which makes up about 80% of cytoplasm and has unique structure is

Which among the following are the largest physical and chemical molecules?

.......... is polymerized to form proteins.

Proteins is made up of

Biomolecules

Biology 9232 Views

Enzymes are:

........................ causes protein to denature.

The function of enzymes in the living system is to:

What are proteins?

Which are the most diverse molecules in the cell?

Enzymes are :

The substance which makes up about 80% of cytoplasm and has unique structure is

Which among the following are the largest physical and chemical molecules?

.......... is polymerized to form proteins.

Proteins is made up of

Biology
9232 Views