Q: Which of the following equations correctly represents aerobic cellular respiration?

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

Q: Which of the following best describes the central dogma of molecular biology?

$$\text{DNA} \rightarrow \text{RNA} \rightarrow \text{Protein}$$

Question 1

Which of the following best describes the primary function of enzymes in cellular respiration?

Accepted Answer

Enzymes lower the activation energy, thereby speeding up metabolic reactions.

Question 2

During photosynthesis, which molecule acts as the final electron acceptor in the light-dependent reactions?

Accepted Answer

NADP$$^+$$

Question 3

A mutation causes a change in the amino acid sequence of a protein. Which level of protein structure is directly affected by this mutation?

Accepted Answer

Primary structure

Question 4

Which of the following equations correctly represents aerobic cellular respiration?

Accepted Answer

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

Question 5

Which statement best explains why lipids are an efficient form of energy storage in cells?

Accepted Answer

Lipids contain long hydrocarbon chains with many high-energy bonds.

Question 6

A scientist discovers a new organism that lacks a nucleus and membrane-bound organelles. Which domain does this organism most likely belong to?

Accepted Answer

Archaea

Question 7

Which process is responsible for the genetic variation observed in offspring produced by sexual reproduction?

Accepted Answer

Crossing over during meiosis

Question 8

Which of the following best describes the central dogma of molecular biology?

Accepted Answer

$$	ext{DNA} ightarrow 	ext{RNA} ightarrow 	ext{Protein}$$

Question 9

Which evolutionary process is most directly responsible for the adaptation of populations to their environment?

Accepted Answer

Natural selection

Question 10

A cell is placed in a solution with a higher concentration of solutes than the cell's cytoplasm. What will happen to the cell?

Accepted Answer

The cell will shrink as water leaves.

Question 11

Which of the following is a correct statement about Mendel’s Law of Segregation?

Accepted Answer

Alleles for a trait separate during gamete formation.

Question 12

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

Accepted Answer

ATP provides energy for cellular processes by releasing a phosphate group.

Question 13

Which of the following is a product of fermentation in muscle cells under anaerobic conditions?

Accepted Answer

Lactic acid

Question 14

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

Accepted Answer

Water has a high heat capacity, allowing it to moderate temperature changes.

Question 15

Which of the following is a direct result of the process of meiosis?

Accepted Answer

Reduction of chromosome number by half

Question 16

A population of bacteria is exposed to an antibiotic. Over time, some bacteria survive and reproduce. Which biological concept does this scenario best illustrate?

Accepted Answer

Natural selection

Question 17

Which of the following statements about carbohydrates is correct?

Accepted Answer

Carbohydrates are the primary source of energy for most cells.

Question 18

Which of the following best describes the process of speciation?

Accepted Answer

The evolution of new species from existing ones

Question 19

Which of the following is a function of nucleic acids in living organisms?

Accepted Answer

Storing and transmitting genetic information

Question 20

A researcher is studying the effect of temperature on enzyme activity. She finds that enzyme activity increases with temperature up to a point, then rapidly decreases. What is the most likely explanation for the decrease in activity at high temperatures?

Accepted Answer

The enzyme denatures, losing its functional shape.

General Biology I (BISC 1403) Syllabus and Study Guide

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