Cell [Subject SAT (College Board) Biology]: Questions 186 - 190 of 192

Access detailed explanations (illustrated with images and videos) to 824 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access & Unlimited Time!

View Sample Explanation or View Features.

Rs. 400.00 -OR-

How to register? Already Subscribed?

Question 186

Cell
Edit

Question

MCQ▾

Cofactors are

Image of the cofactors

Image of the Cofactors

Loading Image

Choices

Choice (5)Response

a.

increase activation energy

b.

help facilitate enzyme activity

c.

are very rare in living organisms

d.

break hydrogen bonds in proteins

e.

None of the above

Question 187

Cell
Edit

Question

MCQ▾

Of the total incident solar radiation the proportion of PAR is

Choices

Choice (5)Response

a.

Less than 50%

b.

Above 80%

c.

About 60%

d.

More than 70%

e.

Question does not provide sufficient data or is vague

Question 188

Cell
Edit

Question

MCQ▾

CAM plants help in

Choices

Choice (5)Response

a.

Conserving water

b.

Reproduction

c.

Disease resistance

d.

Secondary growth

e.

All of the above

Question 189

Cell
Edit

Question

MCQ▾

Some enzymes covalently bind a non-protein organic molecule to the active site. The organic molecule concerned is required if the enzyme is to catalyze a reaction on a substrate. What is the term used for such a molecule?

Choices

Choice (5)Response

a.

Cofactor

b.

Modulator

c.

Coenzyme

d.

Prosthetic group

e.

All of the above

Question 190

Cell
Edit

Question

Matching-Pair▾

Find matching pair:

Choices

Choice (5)Response

a.

Diplotene

Crossing over

b.

Gap 2 phase

Quiescent stage

c.

Zygotene

Syapsis

d.

S-phase

DNA replication

e.

Both d. and c. are correct