Q: Which of the following equations correctly represents the net ATP yield from aerobic cellular respiration of one glucose molecule?

$$ 1 \text{ glucose} + 6 \text{O}_2 \rightarrow 36 \text{ or } 38 \text{ ATP} + 6 \text{CO}_2 + 6 \text{H}_2\text{O} $$

Question 1

Which of the following best describes the structure of the plasma membrane in human cells?

Accepted Answer

A phospholipid bilayer with hydrophilic heads facing outward and hydrophobic tails facing inward

Question 2

During cellular respiration, which organelle is primarily responsible for producing ATP through the electron transport chain?

Accepted Answer

Mitochondrion

Question 3

Which process describes the movement of water across a selectively permeable membrane from an area of high water concentration to low water concentration?

Accepted Answer

Osmosis

Question 4

A muscle cell is deprived of oxygen and begins to produce lactic acid. Which type of respiration is occurring?

Accepted Answer

Anaerobic respiration

Question 5

Which cellular organelle is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi apparatus

Question 6

Which of the following is a correct sequence of events in the cell cycle?

Accepted Answer

Interphase → Mitosis → Cytokinesis

Question 7

What is the main function of ribosomes in the cell?

Accepted Answer

Protein synthesis

Question 8

Which stage of mitosis is characterized by chromosomes lining up along the center of the cell?

Accepted Answer

Metaphase

Question 9

Which of the following best describes facilitated diffusion?

Accepted Answer

Movement of solutes through a protein channel down a concentration gradient without energy

Question 10

During transcription, what is produced from a DNA template?

Accepted Answer

Messenger RNA (mRNA)

Question 11

Which of the following equations correctly represents the net ATP yield from aerobic cellular respiration of one glucose molecule?

Accepted Answer

$$ 1 	ext{ glucose} + 6 	ext{O}_2 ightarrow 36 	ext{ or } 38 	ext{ ATP} + 6 	ext{CO}_2 + 6 	ext{H}_2	ext{O} $$

Question 12

Which organelle contains enzymes that digest non-usable materials within the cell, acting as the cell's 'garbage disposal'?

Accepted Answer

Lysosome

Question 13

Which process requires energy input from the cell to move substances against their concentration gradient?

Accepted Answer

Active transport

Question 14

What is the role of transfer RNA (tRNA) during translation?

Accepted Answer

It brings the appropriate amino acid to the ribosome based on the codon sequence

Question 15

Which of the following is a real-life example of bulk transport in human cells?

Accepted Answer

White blood cell engulfing a bacterium by phagocytosis

Question 16

Which of the following statements about the genetic code is correct?

Accepted Answer

A sequence of three nucleotides on DNA (triplet) codes for one amino acid

Question 17

Which of the following best describes the function of the smooth endoplasmic reticulum?

Accepted Answer

Cholesterol synthesis and breakdown, fat metabolism, and detoxification of drugs

Question 18

A cell is placed in a solution with a higher concentration of solutes than inside the cell. What will happen to the cell due to osmosis?

Accepted Answer

Water will move out of the cell, causing it to shrink

Question 19

Which of the following is NOT a product of glycolysis?

Accepted Answer

Oxygen

Question 20

Which of the following best explains epigenetic regulation of gene expression?

Accepted Answer

Modifications to DNA or histone proteins that affect gene expression without changing the DNA sequence

Cell Structure, Function, and Cellular Processes in Anatomy & Physiology

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