Question 1

Which of the following best describes the function of the plasma membrane in a typical human cell?

Accepted Answer

It acts as a selectively permeable barrier, regulating the movement of substances into and out of the cell.

Question 2

A red blood cell is placed in a solution and begins to swell and eventually bursts. Which type of solution was the cell placed in, and what is the underlying process?

Accepted Answer

Hypotonic solution; water moves into the cell by osmosis.

Question 3

Which of the following best defines a concentration gradient?

Accepted Answer

A difference in the amount of a substance between two areas.

Question 4

Which organelle is primarily responsible for synthesizing proteins in the cell?

Accepted Answer

Ribosome

Question 5

During which phase of mitosis do the chromosomes align at the center of the cell?

Accepted Answer

Metaphase

Question 6

Which of the following transport mechanisms requires energy in the form of ATP?

Accepted Answer

Primary active transport

Question 7

A cell is observed to engulf large particles by wrapping its plasma membrane around them and forming a vesicle. What is this process called?

Accepted Answer

Phagocytosis

Question 8

Which of the following best describes the structure and function of chromatin?

Accepted Answer

Chromatin is DNA wrapped around histone proteins, serving as the genetic material in the nucleus.

Question 9

Given a DNA template strand with the sequence $$5'	ext{-}ATGCGT-3'$$, what is the corresponding mRNA sequence produced during transcription?

Accepted Answer

$$5'	ext{-}UACGCA-3'$$

Question 10

Which of the following best explains the role of the rough endoplasmic reticulum (RER) in a cell?

Accepted Answer

It is the site of protein synthesis for proteins destined for secretion or membranes.

Question 11

A patient is given intravenous fluids that are isotonic to their blood plasma. What effect will this have on their red blood cells?

Accepted Answer

There will be no net movement of water, and the cells will remain unchanged.

Question 12

Which of the following best describes the function of mitochondria in eukaryotic cells?

Accepted Answer

They generate ATP through aerobic respiration.

Question 13

Which of the following statements about facilitated diffusion is correct?

Accepted Answer

It uses membrane proteins to move substances down their concentration gradient.

Question 14

During which stage of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 15

Which of the following best describes the process of translation in protein synthesis?

Accepted Answer

The process by which mRNA is decoded to assemble a polypeptide chain at the ribosome.

Question 16

A cell is placed in a hypertonic solution. Predict what will happen to the cell and explain the underlying mechanism.

Accepted Answer

The cell will shrink as water leaves by osmosis.

Question 17

Which of the following is NOT a function of the Golgi apparatus?

Accepted Answer

Synthesizing ATP for cellular energy.

Question 18

Which of the following best describes the difference between haploid and diploid cells?

Accepted Answer

Haploid cells have one set of chromosomes; diploid cells have two sets.

Question 19

Which of the following best explains the role of centrioles in cell division?

Accepted Answer

They organize microtubules to form the mitotic spindle during mitosis.

Question 20

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

Accepted Answer

G1 phase → S phase → G2 phase → M phase

Cell Structure, Function, and Processes: Study Notes for Anatomy & Physiology

Guida di studio - Domande di pratica

Study guide - Flashcard