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Anatomy and Physiology Practice Tests

These Grade 12 Science practice tests develop Anatomy and Physiology skills through body organization, tissues, homeostasis, movement, nervous and endocrine control, cardiovascular and respiratory function, digestion, excretion, immunity, and reproduction.

Skills covered

  • Using anatomical position, homeostasis, tissue types, organs, cell membranes, mitosis, mitochondria, and DNA concepts
  • Explaining bone remodeling, synovial joints, muscle contraction, neuromuscular junctions, skin, thermoregulation, cartilage, ligaments, and tendons
  • Analyzing neurons, membrane potential, synapses, reflexes, central and autonomic nervous systems, hormones, insulin, thyroid regulation, and cortisol feedback
  • Tracing blood flow, cardiac pacing, arteries, capillaries, hemoglobin, ventilation, alveolar exchange, lymphatic function, and antibodies
  • Applying digestion, liver function, nutrient absorption, nephron filtration, ADH, urinary regulation, fertilization, adaptive immunity, and memory

How to use these practice tests

For each question, identify the structure, trace the direction of movement or signaling, and explain how the structure supports the body system's function. Use the solutions to connect anatomy with homeostasis and physiological evidence.

For more Grade 12 Science practice, return to the Grade 12 Science category.

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5. Test

Grade 12 Anatomy and Physiology Practice Tests

Practice Grade 12 Science questions about anatomical organization, tissues, movement, nervous and endocrine control, circulation, respiration, digestion, excretion, immunity, and reproduction.

Choose the best answer. Connect each structure to its function, follow the direction of flow or signaling, and distinguish regulation, transport, exchange, and defense.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

Where does chemical digestion begin?

Please select an answer first.

Correct answer: A

The correct answer is In the mouth.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Salivary enzymes begin digestion while chewing mixes food with saliva and forms a bolus.
  3. Connect structure and function: The correct answer is In the mouth.

Salivary enzymes begin digestion while chewing mixes food with saliva and forms a bolus.

2. QuestionMultiple choice

What is a major function of stomach acid?

Please select an answer first.

Correct answer: B

The correct answer is Helping denature proteins and activate pepsin.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: The acidic stomach environment supports protein digestion and helps limit many ingested microbes.
  3. Connect structure and function: The correct answer is Helping denature proteins and activate pepsin.

The acidic stomach environment supports protein digestion and helps limit many ingested microbes.

3. QuestionMultiple choice

Where does most nutrient absorption occur?

Please select an answer first.

Correct answer: C

The correct answer is The small intestine.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Villi and microvilli greatly increase the small intestine's surface area for absorption into blood and lymph.
  3. Connect structure and function: The correct answer is The small intestine.

Villi and microvilli greatly increase the small intestine's surface area for absorption into blood and lymph.

4. QuestionMultiple choice

What is a major digestive function of the liver?

Please select an answer first.

Correct answer: D

The correct answer is Producing bile and processing absorbed nutrients.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: The liver produces bile for fat emulsification and performs extensive metabolic, storage, and detoxification functions.
  3. Connect structure and function: The correct answer is Producing bile and processing absorbed nutrients.

The liver produces bile for fat emulsification and performs extensive metabolic, storage, and detoxification functions.

5. QuestionMultiple choice

What is the nephron?

Please select an answer first.

Correct answer: A

The correct answer is The functional filtering and processing unit of the kidney.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Each nephron filters blood and adjusts the filtrate through reabsorption and secretion to form urine.
  3. Connect structure and function: The correct answer is The functional filtering and processing unit of the kidney.

Each nephron filters blood and adjusts the filtrate through reabsorption and secretion to form urine.

6. QuestionMultiple choice

What is a major effect of antidiuretic hormone?

Please select an answer first.

Correct answer: B

The correct answer is Increasing water reabsorption by the kidneys.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: ADH increases collecting-duct water permeability, helping conserve water when the body is dehydrated.
  3. Connect structure and function: The correct answer is Increasing water reabsorption by the kidneys.

ADH increases collecting-duct water permeability, helping conserve water when the body is dehydrated.

7. QuestionMultiple choice

What is glomerular filtration?

Please select an answer first.

Correct answer: C

The correct answer is Movement of water and small solutes from blood into the nephron's filtrate.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Blood pressure across the glomerulus drives filtration while cells and most large proteins remain in the blood.
  3. Connect structure and function: The correct answer is Movement of water and small solutes from blood into the nephron's filtrate.

Blood pressure across the glomerulus drives filtration while cells and most large proteins remain in the blood.

8. QuestionMultiple choice

What is a primary function of the urinary system?

Please select an answer first.

Correct answer: D

The correct answer is Removing metabolic wastes and regulating water, ions, and acid-base balance.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: The kidneys and urinary tract help excrete wastes and maintain internal chemical conditions.
  3. Connect structure and function: The correct answer is Removing metabolic wastes and regulating water, ions, and acid-base balance.

The kidneys and urinary tract help excrete wastes and maintain internal chemical conditions.

9. QuestionMultiple choice

Where does fertilization usually occur in the human reproductive system?

Please select an answer first.

Correct answer: A

The correct answer is In a uterine tube.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Sperm and egg commonly meet in the uterine tube before the early embryo travels toward the uterus.
  3. Connect structure and function: The correct answer is In a uterine tube.

Sperm and egg commonly meet in the uterine tube before the early embryo travels toward the uterus.

10. QuestionMultiple choice

What is an important function of the adaptive immune response?

Please select an answer first.

Correct answer: B

The correct answer is Recognizing specific antigens and forming immunological memory.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Adaptive immunity uses specific lymphocyte responses and can respond more rapidly after prior exposure.
  3. Connect structure and function: The correct answer is Recognizing specific antigens and forming immunological memory.

Adaptive immunity uses specific lymphocyte responses and can respond more rapidly after prior exposure.

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