Question 1

Which of the following statements best describes why water is considered an excellent solvent in biological systems?

Accepted Answer

Water's polarity allows it to dissolve many ionic and polar substances.

Question 2

A patient is suffering from dehydration. Which property of water is most directly involved in helping the body maintain a stable internal temperature during this condition?

Accepted Answer

Water's high specific heat

Question 3

Which of the following best explains why ice floats on liquid water?

Accepted Answer

Hydrogen bonds in ice cause molecules to be spaced farther apart, making ice less dense.

Question 4

Which of the following is a correct general formula for carbohydrates?

Accepted Answer

$$\mathrm{C_nH_{2n}O_n}$$

Question 5

A molecule of sodium chloride (NaCl) is held together by which type of bond?

Accepted Answer

Ionic bond

Question 6

Which of the following best describes the role of ATP in the cell?

Accepted Answer

ATP acts as a universal energy source for cellular activities.

Question 7

Which process is responsible for breaking down a polysaccharide into monosaccharides within a cell?

Accepted Answer

Hydrolysis

Question 8

A scientist observes a cell with no nucleus, a plasma membrane, and a cell wall. This cell is most likely:

Accepted Answer

A prokaryotic bacterial cell

Question 9

Which of the following best explains why small cells are more efficient than large cells?

Accepted Answer

Small cells have a higher surface area to volume ratio, facilitating efficient exchange of materials.

Question 10

Which of the following is NOT a function of the plasma membrane?

Accepted Answer

Providing a rigid structure to the cell

Question 11

Which of the following best describes the function of ribosomes?

Accepted Answer

Protein synthesis

Question 12

A red blood cell is placed in a hypotonic solution. What will most likely happen?

Accepted Answer

The cell will swell and may burst as water enters.

Question 13

Which of the following is a function of the Golgi apparatus?

Accepted Answer

Refining, packaging, and shipping proteins

Question 14

Which of the following best describes the role of mitochondria in the cell?

Accepted Answer

Site of cellular respiration and ATP generation

Question 15

Which of the following is a correct sequence for the aerobic breakdown of glucose to produce ATP?

Accepted Answer

Glycolysis $$\rightarrow$$ Citric Acid Cycle $$\rightarrow$$ Electron Transport Chain

Question 16

Which of the following is a property of epithelial tissue?

Accepted Answer

Lines body cavities and covers surfaces

Question 17

Which of the following is a function of connective tissue?

Accepted Answer

Supports and connects other tissues

Question 18

Which of the following is a correct description of a phospholipid?

Accepted Answer

Has a hydrophilic head and two hydrophobic tails

Question 19

Which of the following best explains why enzymes are critical for biochemical reactions in living organisms?

Accepted Answer

Enzymes lower the activation energy required for reactions.

General Biology Study Notes: Chemistry of Life, Cells, Organ Systems, Skeletal and Muscular Systems

Study Guide - Practice Questions

Study Guide - Flashcards