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  3. 12. in simple diffusion a solute a. is propelled b

12. In simple diffusion a solute A. Is propelled by random molecular motion B. Moves up its...

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Biology

12. In simple diffusion a solute

A. Is propelled by random molecular motion

B. Moves up its concentration gradient

C. Moves across a membrane because of an input of freeenergy.

D. Both A and B are correct

E. All of the above are correct

16. Lipolysis is used to

A. Degrade triacylglycerols

B. Prepare triacylglycerols for excretion

C. Remove lipid from membrane

D. Cleave fatty acids into two carbon units

E. Convert fatty acids to glucose

19. The myelin sheath

A. Surrounds nerve cell axons

B. Contains large amounts of cardiolipin

C. Facilitates nerve impulse transmission

D. Both A and B are correct

E. Both A and C are correct

20. Membrane proteins are linked to anchor moleculesthrough a ___________ link

A. Ether

B. Ester

C. Amide

D. Amino

E. Plasma

22. Patients with familialhypercholesterolemia

A. Possess depressed levels of plasma cholesterol

B. Have missing or defective LDL receptors

C. Are homozygous or heterozygous for a nonfunctional LDLreceptor gene

D. Have very high levels of serum cholesterol

E. B, C and D are correct

Answer & Explanation Solved by verified expert
4.4 Ratings (982 Votes)
12The simple diffusion is the random movement of molecules from their high concentration to their low concentrationThis movement is passive transport and downhill and does not require energy in the form of ATPSo the right answer is A The example of    See Answer
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