Question 1

Which of the following statements about biological polymers is correct?

Accepted Answer

They are desynthesized via hydrolysis, which breaks bonds.

Question 2

A cell is placed in a solution and swells until it bursts. What type of solution was it placed in?

Accepted Answer

Hypotonic

Question 3

Which of the following molecules can pass through the cell membrane without the help of a protein?

Accepted Answer

Steroids

Question 4

If you hydrogenate the fatty acid chains in the phospholipid bilayer, what will happen?

Accepted Answer

The membrane's melting temperature and viscosity will increase, while fluidity will decrease.

Question 5

Which of the following is NOT made of monomers?

Accepted Answer

Fatty acids

Question 6

Which of the following amino acids is the most hydrophobic?

Accepted Answer

Tryptophan

Question 7

The two strands of DNA are held together by which type of bond?

Accepted Answer

Hydrogen bonds

Question 8

Which part of DNA and RNA is responsible for their negative charge?

Accepted Answer

The phosphate group

Question 9

Which of the following cell structures is primarily involved in the synthesis of lipids such as oils, phospholipids, and steroids?

Accepted Answer

Smooth endoplasmic reticulum

Question 10

A prokaryotic cell does NOT have which of the following?

Accepted Answer

Membrane-bound organelles

Question 11

Which of the following changes membrane fluidity in both directions depending on temperature?

Accepted Answer

Cholesterol

Question 12

Which of the following is a motor protein that uses ATP to move along microtubules?

Accepted Answer

Myosin

Question 13

Which type of protein structure is almost completely stabilized by hydrogen bonds?

Accepted Answer

Secondary structure

Question 14

Which of the following is true about catabolic pathways?

Accepted Answer

They release energy.

Question 15

Enzymes catalyze reactions by lowering which of the following?

Accepted Answer

The activation energy $$E_a$$

Question 16

For a reaction to occur spontaneously, which of the following must be true?

Accepted Answer

It must give off free energy.

Question 17

Which of the following is NOT a way enzymes are regulated?

Accepted Answer

Induced fit

Question 18

Which of the following statements about the second law of thermodynamics and living systems is correct?

Accepted Answer

Living systems increase the entropy of the universe.

Question 19

Which of the following is most similar to the mitochondrial cristae?

Accepted Answer

Endoplasmic reticulum

Question 20

Which of the following is a property of trans fats?

Accepted Answer

A double bond

General Biology: Cell Structure, Membrane Function, and Enzyme Regulation Study Guide

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