Q: Which equation correctly represents the process of cellular respiration?

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

Q: Which of the following is an example of a quantitative scientific method used in biology?

Measuring the rate of enzyme activity using $$\text{mol/min}.$$

Question 1

Which of the following best describes the scientific method as applied in biology?

Accepted Answer

A cyclical process involving observation, hypothesis formation, experimentation, and analysis.

Question 2

A student is investigating the effect of light intensity on photosynthesis rate in Elodea plants. Which variable should be kept constant to ensure a valid experiment?

Accepted Answer

The amount of carbon dioxide available to the plant.

Question 3

Which equation correctly represents the process of cellular respiration?

Accepted Answer

$$C_6H_{12}O_6$ + 6O_2 ightarrow 6CO_2 + 6H_2O + 	ext{energy}$$

Question 4

Which of the following is a real-world application of diffusion in human physiology?

Accepted Answer

The movement of oxygen from alveoli into the blood.

Question 5

A cell placed in a hypertonic solution will:

Accepted Answer

Lose water and shrink.

Question 6

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

Accepted Answer

They lower the activation energy, allowing reactions to occur at body temperature.

Question 7

Which macromolecule is primarily responsible for storing genetic information?

Accepted Answer

Nucleic acids

Question 8

During mitosis, which phase is characterized by the alignment of chromosomes along the cell's equator?

Accepted Answer

Metaphase

Question 9

A mutation occurs in the gene coding for hemoglobin, resulting in sickle cell anemia. This is an example of:

Accepted Answer

A harmful mutation affecting protein structure and function.

Question 10

Which of the following is a correct statement about the flow of energy in ecosystems?

Accepted Answer

Energy flows in one direction, from producers to consumers to decomposers.

Question 11

Which process is responsible for the production of most atmospheric oxygen?

Accepted Answer

Photosynthesis

Question 12

A population of rabbits is introduced to an island with abundant food and no predators. Which population growth model best describes their initial growth?

Accepted Answer

Exponential growth

Question 13

Which formula represents the calculation of population growth rate?

Accepted Answer

$$r = (b - d)$$

Question 14

Which of the following is an example of a quantitative scientific method used in biology?

Accepted Answer

Measuring the rate of enzyme activity using $$	ext{mol/min}.$$

Question 15

Which of the following best describes the role of decomposers in an ecosystem?

Accepted Answer

They recycle nutrients by breaking down dead organic matter.

Question 16

A scientist wants to test the effect of a new drug on cell division. Which is the best control for this experiment?

Accepted Answer

Cells not treated with the drug.

Question 17

Which of the following is a direct result of meiosis in sexually reproducing organisms?

Accepted Answer

Production of gametes with half the chromosome number.

Question 18

Which of the following best explains why water is essential for life?

Accepted Answer

It has a high heat capacity, helping regulate temperature.

Question 19

Which of the following is a correct application of the principle of natural selection?

Accepted Answer

Individuals with advantageous traits are more likely to survive and reproduce.

Question 20

A scientist collects data on the number of bacteria colonies growing on different types of agar plates. Which statistical method would be most appropriate to analyze differences between groups?

Accepted Answer

Chi-square test

General Biology I (BIOL 100) Syllabus and Study Guide

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