AP (Advanced Placement) Biology: Questions 607 - 610 of 902

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Question 607

Question

MCQ▾

Motions expressed by phospholipids in a bilayer include all of the following except

Choices

Choice (5)Response

a.

Rotation

b.

Flexion

c.

Flip-flop

d.

Lateral diffusion

e.

Inversion

Question 608

Question

MCQ▾

Which of the following is NOT derived from mesoderm?

Choices

Choice (5)Response

a.

Adrenal cortex

b.

Lymphatic system

c.

Adrenal medulla

d.

Dermis of skin

e.

Gonads

Question 609

Question

MCQ▾

. Operon the genetic regulatory system present in bacteria is controlled by a digital mechanism, with expression of the operon either on or off. The following option describes the operon in a eukaryotic version is/are

Choices

Choice (5)Response

a.

Cis binding of an inducer for induction of activator system

b.

A suppressor switch off the operon expression even in presence off of inducer

c.

Either Cis or Trans binding of a repressor or an activator

d.

Variations in expression levels based on specific activators and suppressors elements

e.

More than one protein produced from a eukaryotic mRNA

Question 610

Question

MCQ▾

What prevents glucose from being transported out of an epithelial cell and into the intestinal lumen?

Choices

Choice (5)Response

a.

The glucose is imported with the help of sodium-potassium pump.

b.

The glucose is imported with sodium antiport.

c.

The glucose is imported with sodium Unipart.

d.

The glucose is imported with sodium symport.

e.

The glucose is transported into intestinal lumen along concentration gradient.

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