Question 1

Which of the following best describes the primary function of the cell membrane?

Accepted Answer

It allows only selected materials to enter or exit the cell, maintaining selective permeability.

Question 2

A patient is diagnosed with a disorder affecting their mitochondria. Which of the following symptoms would most likely be observed?

Accepted Answer

Decreased ability to produce ATP, leading to muscle weakness and fatigue.

Question 3

Which of the following is an example of active transport across a cell membrane?

Accepted Answer

Sodium-potassium pump using ATP to move ions against their concentration gradients.

Question 4

Which tissue type is primarily responsible for transmitting electrical impulses in the body?

Accepted Answer

Nervous tissue

Question 5

A person suffers a deep cut that damages the dermis and underlying tissue. Which body system is primarily responsible for repairing this injury?

Accepted Answer

Integumentary system

Question 6

Which of the following best describes the anatomical position?

Accepted Answer

Body standing upright, facing forward, arms at sides, palms facing forward.

Question 7

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

Accepted Answer

Golgi apparatus

Question 8

A person with blood type AB can safely receive blood from which of the following types?

Accepted Answer

All blood types (universal recipient)

Question 9

Which of the following is a function of bone tissue?

Accepted Answer

Storage of minerals such as calcium and phosphate

Question 10

If a cell is placed in a hypertonic solution, what will most likely happen?

Accepted Answer

The cell will shrink as water leaves.

Question 11

Which of the following best explains why skeletal muscle is considered voluntary?

Accepted Answer

It is attached to bones and can be consciously controlled.

Question 12

Which of the following is the correct order of structural organization in the human body from simplest to most complex?

Accepted Answer

Cell → Tissue → Organ → Organ system → Organism

Question 13

Which of the following best describes negative feedback in homeostasis?

Accepted Answer

A process that reverses a change and restores the system to its set point.

Question 14

Which of the following is a function of the respiratory system?

Accepted Answer

Exchanging gases between the body and the environment

Question 15

A person with a mutation in their hemoglobin gene is likely to experience which of the following?

Accepted Answer

Reduced oxygen transport in the blood

Question 16

Which of the following best describes the function of the ribosome?

Accepted Answer

Synthesis of proteins from amino acids

Question 17

Which of the following is a characteristic of connective tissue?

Accepted Answer

It supports, binds, and protects other tissues and organs.

Question 18

Which of the following best explains why osmosis is important for cell survival?

Accepted Answer

It maintains the balance of water between the cell and its environment.

Question 19

Which of the following is a function of the Golgi apparatus?

Accepted Answer

Packaging and modifying proteins for secretion

Question 20

A person is unable to produce enough parathyroid hormone. Which of the following is a likely consequence?

Accepted Answer

Decreased blood calcium levels

General Biology: Unit-wise Revision Notes

Study Guide - Practice Questions