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 of the following is NOT a property of water that supports life on Earth?

Accepted Answer

Low surface tension

Question 3

A scientist observes that a plant grows faster when exposed to blue light compared to red light. Which step of the scientific method does this observation represent?

Accepted Answer

Making an observation

Question 4

Which chemical bond is primarily responsible for the unique properties of water?

Accepted Answer

Hydrogen bonds

Question 5

Which equation correctly represents the dissociation of water and its relationship to pH?

Accepted Answer

$$H_2O \rightarrow H^+ + OH^-$$

Question 6

Which of the following macromolecules is correctly paired with its monomer?

Accepted Answer

Carbohydrate – Monosaccharide

Question 7

A patient is diagnosed with a genetic disorder caused by a mutation in the DNA sequence. Which macromolecule is directly affected?

Accepted Answer

Nucleic acid

Question 8

Which of the following best explains why cells are considered the basic unit of life?

Accepted Answer

Cells are the smallest structures that can carry out all life processes.

Question 9

Which process is responsible for the breakdown of glucose to produce ATP in the presence of oxygen?

Accepted Answer

Aerobic cellular respiration

Question 10

Which stage of the cell cycle is characterized by DNA replication?

Accepted Answer

S phase

Question 11

A researcher is studying the effect of a new drug on enzyme activity. Which variable should be kept constant to ensure valid results?

Accepted Answer

Concentration of the enzyme

Question 12

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 13

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 14

Which property of the plasma membrane allows it to regulate the movement of substances into and out of the cell?

Accepted Answer

Selective permeability

Question 15

Which of the following best explains why enzymes are essential for life?

Accepted Answer

They speed up chemical reactions by lowering activation energy.

Question 16

A cell placed in a hypertonic solution will:

Accepted Answer

Lose water and shrink

Question 17

Which of the following is a real-world application of genomics?

Accepted Answer

Identifying genetic mutations responsible for inherited diseases

Question 18

Which phase of meiosis is responsible for the independent assortment of chromosomes?

Accepted Answer

Metaphase I

Question 19

Which of the following best describes the role of ATP in cellular metabolism?

Accepted Answer

ATP stores and transfers energy for cellular work.

Question 20

A student is investigating the effect of temperature on enzyme activity. She observes that enzyme activity increases up to a certain temperature, then sharply decreases. Which explanation best fits her observation?

Accepted Answer

Enzymes denature at high temperatures, losing their function.

General Biology I: Course Syllabus and Study Guide

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드