Human Physiology
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Digestion and Absorption
SubtopicDigestion and Absorption under Human Physiology for Grade 11 IB.
Preview questions (no answers)
- 1.
What is the purpose of having a very long small intestine in humans?
A.To store food for several days
B.To provide maximum time and surface area for absorption
C.To produce more hydrochloric acid
D.To prevent the growth of bacteria
- 2.
Which of the following best describes the process of ingestion?
A.Breaking down food using enzymes
B.Taking food into the mouth
C.Absorbing nutrients into the blood
D.Removing waste from the body
- 3.
Why can humans NOT digest cellulose?
A.The stomach acid is too weak to break it down
B.Human enzymes like amylase cannot break -1,4 linkages
C.Cellulose is too small to be targeted by enzymes
D.It is only found in animal tissues
Download the worksheet for Human Physiology - Digestion and Absorption to practice offline. It includes additional chapter-level practice questions.
The Blood System
SubtopicThe Blood System under Human Physiology for Grade 11 IB.
Preview questions (no answers)
- 1.
In which part of the body are red blood cells, white blood cells, and platelets primarily produced?
A.The heart
B.The liver
C.The bone marrow
D.The spleen
- 2.
Which of the following is a distinct characteristic of human red blood cells that helps maximize space for hemoglobin?
A.They have a very large nucleus
B.They lack a nucleus at maturity
C.They are spherical in shape
D.They have many mitochondria
- 3.
How are hormones such as insulin or adrenaline transported to their target organs?
A.Through specialized hormone ducts
B.By attachment to red blood cells
C.Dissolved in the blood plasma
D.Through the nervous system
Download the worksheet for Human Physiology - The Blood System to practice offline. It includes additional chapter-level practice questions.
Defense Against Infectious Disease
SubtopicDefense Against Infectious Disease under Human Physiology for Grade 11 IB.
Preview questions (no answers)
- 1.
Which of the following is an example of an infectious disease?
A.Type 1 Diabetes
B.Scurvy
C.Tuberculosis
D.Color blindness
- 2.
What happens to the fibrinogen during the final stage of blood clotting?
A.It is broken down into amino acids
B.It is converted from a soluble form into an insoluble fibrous form
C.It is released from platelets into the air
D.It is used to synthesize new white blood cells
- 3.
Which of these contributes to the development of antibiotic-resistant bacteria?
A.Finishing the entire prescribed course of antibiotics
B.Using antibiotics for viral infections where they have no effect
C.The use of vaccinations against bacterial diseases
D.The presence of lysosomes in human phagocytes
Download the worksheet for Human Physiology - Defense Against Infectious Disease to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
Which of these are branches of the bronchi?
A.Trachea
B.Alveoli
C.Bronchioles
D.Capillaries
- 2.
Which of the following describes an 'antagonistic' muscle pair?
A.Two muscles that work together to perform the same movement
B.Two muscles that move in opposite directions to each other
C.A muscle and a bone working together
D.A muscle that never relaxes
- 3.
What happens to the pressure of air in the lungs when the ribcage is pulled upwards and outwards?
A.Pressure increases
B.Pressure decreases
C.Pressure remains unchanged
D.Pressure reaches equilibrium with the blood
Download the worksheet for Human Physiology - Gas Exchange to practice offline. It includes additional chapter-level practice questions.
Neurons and Synapses
SubtopicNeurons and Synapses under Human Physiology for Grade 11 IB.
Preview questions (no answers)
- 1.
Which of these occurs first when an action potential reaches the synaptic knob?
A.Neurotransmitter breakdown
B.Opening of voltage-gated calcium channels
C.Binding of neurotransmitters to receptors
D.Opening of sodium channels on the post-synaptic membrane
- 2.
If multiple presynaptic neurons release neurotransmitters at the same time, what is this process called?
A.Saltation
B.Summation
C.Propagation
D.Depolarization
- 3.
What is the primary function of a relay neuron?
A.To detect changes in the environment
B.To carry signals from the CNS to muscles
C.To connect sensory and motor neurons within the CNS
D.To produce myelin for the peripheral nerves
Download the worksheet for Human Physiology - Neurons and Synapses to practice offline. It includes additional chapter-level practice questions.
Hormones, Homeostasis, and Reproduction
SubtopicHormones, Homeostasis, and Reproduction under Human Physiology for Grade 11 IB.
Preview questions (no answers)
- 1.
What is the function of the urethra in the male reproductive system?
A.It produces sperm
B.It transports both urine and semen out of the body
C.It stores sperm for maturation
D.It secretes testosterone into the blood
- 2.
Which of the following correctly pairs a hormone with its primary source?
A.Thyroxin - Pancreas
B.Glucagon - Thyroid gland
C.Insulin - Pancreas
D.Melatonin - Adipose tissue
- 3.
Which hormone is produced by the pineal gland?
A.Thyroxin
B.Leptin
C.Melatonin
D.Insulin
Download the worksheet for Human Physiology - Hormones, Homeostasis, and Reproduction to practice offline. It includes additional chapter-level practice questions.