Question 1

Which of the following best describes the overarching theme of biology as introduced in this course?

Accepted Answer

The study of life and the interactions of organisms with their environment.

Question 2

Which property of water is most responsible for its ability to moderate Earth's climate?

Accepted Answer

High specific heat capacity

Question 3

A scientist observes that a certain enzyme catalyzes a reaction more efficiently at pH 7 than at pH 5. What property of biological molecules does this illustrate?

Accepted Answer

Enzyme activity is dependent on environmental conditions.

Question 4

Which of the following equations correctly represents the breakdown of a disaccharide into two monosaccharides?

Accepted Answer

$$C_{12}H_{22}O_{11} + H_2O \rightarrow 2C_6H_{12}O_6$$

Question 5

Which cellular structure is primarily responsible for the synthesis of proteins?

Accepted Answer

Ribosome

Question 6

A patient is diagnosed with a genetic disorder that affects the structure of their cell membranes. Which macromolecule is most likely involved?

Accepted Answer

Lipids

Question 7

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

Accepted Answer

Hydrogen bonds keep water molecules farther apart in ice.

Question 8

Which process is responsible for the production of ATP in the presence of oxygen?

Accepted Answer

Oxidative phosphorylation

Question 9

A cell is observed to have a large number of mitochondria. What can you infer about this cell?

Accepted Answer

It requires a large amount of energy.

Question 10

Which stage of mitosis is characterized by the alignment of chromosomes along the metaphase plate?

Accepted Answer

Metaphase

Question 11

Which of the following best describes the difference between mitosis and meiosis?

Accepted Answer

Mitosis produces two identical cells; meiosis produces four genetically unique cells.

Question 12

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

Accepted Answer

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

Question 13

A researcher is studying a cell that lacks a nucleus. Which type of organism is this cell most likely from?

Accepted Answer

Prokaryote

Question 14

Which of the following is a function of the plasma membrane in cells?

Accepted Answer

Regulating the movement of substances into and out of the cell

Question 15

Which of the following best describes the role of enzymes in biological systems?

Accepted Answer

Enzymes decrease the activation energy required for reactions.

Question 16

A student mixes hydrochloric acid (HCl) with water and measures the pH. Which equation describes the dissociation of HCl in water?

Accepted Answer

$$HCl \rightarrow H^+ + Cl^-$$

Question 17

Which of the following is a real-world example of energy coupling in cells?

Accepted Answer

The use of ATP hydrolysis to drive the active transport of ions across a membrane

Question 18

Which of the following best explains why genetic variation is important in sexual reproduction?

Accepted Answer

It increases the likelihood of survival in changing environments.

Question 19

Which of the following best describes the function of nucleic acids in living organisms?

Accepted Answer

They store and transmit genetic information.

Question 20

A cell is placed in a solution and water moves out of the cell. What type of solution is the cell in?

Accepted Answer

Hypertonic

General Biology I: Course Syllabus and Study Guide

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드