BIO201 Solved Past Mid Term Papers Collection

BIO201 Past Mid Term Papers

Dear Students, Here you can read or Download BIO201 - Cell Biology Solved Past Mid Term Papers Collection for preparation of Mid Term Examination of Virtual University. Previously we shared Download VU Midterm Exam Solved Papers.

BIO201 Solved Past Mid Term Papers Collection

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BIO201 Past Papers for Mid Term Exam

Here are few Sample Questions from the past papers file:

Energy is the energy of motion

1. Kinetic
2. Potential
3. Chemical
4. Atomic

Ribosomes can be free or attached with

1. Golgi apparatus
2. lysosomes
3. endoplasmic reticulum
4. nucleus

Beta pleated sheet is found in

1. Primary protein structure
2. Secondary protein structure
3. Tertiary protein structure
4. Quaternary protein structure

How much water present in a cell

1. 50%
2. 60%
3. 70%
4. 80%

Charge on DNA is

1. Positive
2. Negative
3. Neutral
4. None

1. Difference between cofactor, coenzyme and pathetic grp and its example??

a substance (other than the substrate) whose presence is essential for the

the activity of an enzyme. 

Coenzymes are small molecules. They cannot by themselves catalyze a

reaction but they can help enzymes to do so. In technical

terms, coenzymes are organic nonprotein molecules that bind with the

protein molecule (the apoenzyme) to form the active enzyme (holoenzyme). 

Prosthetic groups are cofactors that bind tightly to proteins or enzymes.

As if holding on for dear life, they are not easily removed. They can be

organic or metal ions and are often attached to proteins by a covalent

bond. The same cofactors can bind multiple different types of enzymes and

may bind some enzymes loosely, as a coenzyme, and others tightly, as a

prosthetic group.

2. What is the active site on an enzyme??

the active site is the region of an enzyme where substrate molecules bind

and undergo a chemical reaction. The active site consists of residues that

form temporary bonds with the substrate (binding site) and residues that

catalyze a reaction of that substrate (catalytic site). 

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