Q: Which equation correctly represents the process of cellular respiration used by most cells to generate ATP?

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

Question 1

Which of the following statements best describes the concept of heredity as presented in the study materials?

Accepted Answer

Heredity is the process by which organisms reproduce, yielding identical copies of themselves and passing on genetic information.

Question 2

Which chemical component is universally used by all living organisms to store hereditary information?

Accepted Answer

Nucleic acids (DNA or RNA)

Question 3

What is the primary function of ribosomes in cells?

Accepted Answer

Ribosomes are responsible for reading hereditary information and synthesizing proteins.

Question 4

Which of the following is a key difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells contain membrane-bound organelles, while prokaryotic cells do not.

Question 5

Which equation correctly represents the process of cellular respiration used by most cells to generate ATP?

Accepted Answer

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

Question 6

Which of the following is NOT a universal feature of all cells?

Accepted Answer

Presence of mitochondria

Question 7

A scientist discovers a cell with the following features: no nucleus, peptidoglycan cell wall, and circular DNA. To which domain does this cell most likely belong?

Accepted Answer

Bacteria

Question 8

Which of the following best explains why viruses are not considered living organisms?

Accepted Answer

Viruses cannot reproduce independently and require a host cell for replication.

Question 9

Which of the following is a correct statement about prions?

Accepted Answer

Prions propagate by inducing misfolding of normal proteins into the prion form.

Question 10

Which of the following is a distinguishing feature of plant cells compared to animal cells?

Accepted Answer

Plant cells store excess glucose as starch.

Question 11

Which of the following influenza virus types is known to cause pandemics?

Accepted Answer

Influenza A

Question 12

A patient presents with rapidly progressive dementia and brain shrinkage. Which infectious agent is most likely responsible?

Accepted Answer

Prion (as in Creutzfeldt–Jakob disease)

Question 13

Which of the following is the correct hierarchical order of biological organization from smallest to largest?

Accepted Answer

Molecule, macromolecule, organelle, cell, tissue, organ, organ system, organism

Question 14

Which of the following statements about cell theory is correct?

Accepted Answer

All living organisms are composed of one or more cells, and all cells arise from preexisting cells.

Question 15

Which of the following is a function of the plasma membrane in cells?

Accepted Answer

It acts as a barrier controlling the passage of nutrients and waste products.

Question 16

Which of the following is a correct pairing of cell type and its characteristic?

Accepted Answer

Prokaryotic cells: cell wall made of peptidoglycan

Question 17

Which of the following is a plausible consequence of a mutation in the gene encoding a protein catalyst in a cell?

Accepted Answer

The rate of a specific chemical reaction in the cell may decrease, affecting cell function.

Question 18

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

Accepted Answer

ATP serves as the primary free energy source for cellular activities.

Question 19

Which of the following is a correct statement about the structure of DNA in eukaryotic cells?

Accepted Answer

DNA is linear and associated with histones.

Question 20

A new virus is discovered with a genome consisting of single-stranded RNA and a protein coat. Which of the following statements is true about this virus?

Accepted Answer

It requires a living host cell to replicate.

Introduction to Medical Biology and Genetics: Fundamental Cell Biology and Heredity

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