Q: Which of the following best describes the overall chemical equation for aerobic cellular respiration?

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

Question 1

Which of the following best describes the overall chemical equation for aerobic cellular respiration?

Accepted Answer

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

Question 2

During which stage of aerobic cellular respiration is the majority of ATP produced?

Accepted Answer

Electron Transport Chain and Chemiosmosis

Question 3

Which molecule acts as the final electron acceptor in the electron transport chain during aerobic respiration?

Accepted Answer

Oxygen ($$\mathrm{O_2$})$$

Question 4

What is the main purpose of fermentation in cells?

Accepted Answer

To regenerate NAD+ so glycolysis can continue

Question 5

Which of the following is a correct comparison between mitosis and meiosis?

Accepted Answer

Mitosis produces genetically identical diploid cells, while meiosis produces genetically diverse haploid cells.

Question 6

Which event during meiosis increases genetic diversity by exchanging genetic material between homologous chromosomes?

Accepted Answer

Crossing over during Prophase I

Question 7

A cell is observed to have chromosomes aligned in a single row at the cell's equator. Which phase is this cell most likely in?

Accepted Answer

Metaphase of Mitosis

Question 8

Which checkpoint in the cell cycle ensures that all chromosomes are properly attached to spindle fibers before proceeding?

Accepted Answer

M (Metaphase) checkpoint

Question 9

A mutation in which type of gene is most likely to result in uncontrolled cell division and cancer?

Accepted Answer

Proto-oncogene

Question 10

Which process is responsible for the sour taste in yogurt and muscle fatigue during intense exercise?

Accepted Answer

Lactic acid fermentation

Question 11

If a diploid cell with 8 chromosomes undergoes meiosis, how many chromosomes will each resulting gamete have?

Accepted Answer

4

Question 12

Which of the following best explains why obligate anaerobes cannot survive in the presence of oxygen?

Accepted Answer

Oxygen is toxic to their cellular processes

Question 13

What is the result of nondisjunction during meiosis?

Accepted Answer

Aneuploid cells with abnormal chromosome numbers

Question 14

Which of the following is a function of tumor-suppressor genes?

Accepted Answer

Inhibit cell division and prevent tumor formation

Question 15

Which process is used by prokaryotes such as bacteria to reproduce?

Accepted Answer

Binary fission

Question 16

Which of the following best describes independent assortment during meiosis?

Accepted Answer

Random alignment of homologous chromosome pairs during Metaphase I

Question 17

Which of the following is true about the products of glycolysis?

Accepted Answer

Two molecules of pyruvate, two ATP, and two NADH are produced per glucose molecule

Question 18

Which phase of mitosis is characterized by the reformation of the nuclear envelope and the disappearance of the mitotic spindle?

Accepted Answer

Telophase

Question 19

Which of the following best explains why multicellular organisms cannot survive on fermentation alone?

Accepted Answer

Fermentation produces insufficient ATP to meet the energy demands of multicellular organisms

Question 20

Which equation would you use to calculate the number of possible genetic combinations due to independent assortment in an organism with a haploid number $$n$$?

Accepted Answer

$$2^n$$

Cellular Respiration, Cell Cycle, and Meiosis: Core Concepts in College Biology

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