$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} \rightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + \text{ATP}$$

Question 1

Which of the following best describes the role of the scientific method in biology?

Accepted Answer

It provides a systematic approach for making observations, forming hypotheses, conducting experiments, and drawing conclusions.

Question 2

Which property of water allows it to act as a universal solvent in biological systems?

Accepted Answer

Its ability to form hydrogen bonds with many substances.

Question 3

A scientist observes that a plant grows faster in sunlight than in shade. What is the next step in the scientific method?

Accepted Answer

Formulate a testable hypothesis about the effect of sunlight on plant growth.

Question 4

Which macromolecule is primarily responsible for catalyzing chemical reactions in cells?

Accepted Answer

Proteins (enzymes)

Question 5

Which of the following is a correct sequence of biological organization from smallest to largest?

Accepted Answer

Atom $$\rightarrow$$ Molecule $$\rightarrow$$ Cell $$\rightarrow$$ Tissue $$\rightarrow$$ Organ $$\rightarrow$$ Organism

Question 6

Which characteristic of life is demonstrated when a human sweats to cool down after exercise?

Accepted Answer

Regulation (homeostasis)

Question 7

Which element is NOT one of the most common elements found in living organisms?

Accepted Answer

Calcium (Ca)

Question 8

What type of chemical bond involves the sharing of electrons between atoms?

Accepted Answer

Covalent bond

Question 9

Which organelle is known as the 'powerhouse of the cell' due to its role in ATP production?

Accepted Answer

Mitochondria

Question 10

A mutation occurs in the DNA of a cell. Which core concept of biology does this event best illustrate?

Accepted Answer

Information transfer

Question 11

Which of the following statements about prokaryotic cells is TRUE?

Accepted Answer

They lack a membrane-bound nucleus.

Question 12

Which macromolecule forms the main structural component of cell membranes?

Accepted Answer

Phospholipids

Question 13

Which process is responsible for the conversion of biochemical energy from nutrients into ATP?

Accepted Answer

Cellular respiration

Question 14

Which of the following best explains why carbon is so important in forming biological molecules?

Accepted Answer

Carbon's tetravalency allows it to form complex molecules.

Question 15

A cell is observed to have a nucleus, mitochondria, and a Golgi apparatus. What type of cell is this most likely to be?

Accepted Answer

Eukaryotic cell

Question 16

Which of the following is a function of the Golgi apparatus in eukaryotic cells?

Accepted Answer

Modifies, sorts, and packages proteins and lipids for secretion.

Question 17

Which of the following best describes the relationship between structure and function in biology?

Accepted Answer

The form of an organism or its parts is closely related to its function.

Question 18

Which property of water is most important for the transport of nutrients in plants?

Accepted Answer

Cohesion and adhesion

Question 19

Which of the following best illustrates the concept of evolution?

Accepted Answer

A population of insects develops resistance to a pesticide over several generations.

Question 20

Which of the following equations correctly represents the process of cellular respiration?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} ightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + 	ext{ATP}$$

Foundations of General Biology: Key Concepts, Chemistry of Life, and Cell Structure

Study Guide - Practice Questions