Secondary 3 Midterm Practice Questions
1. Elderly people often get the flu vaccine at the beginning of the flu season. This vaccine is
considered to be a live vaccine.
Explain what this vaccine is made of, and how people gain immunity from getting the
vaccination. Make sure your answer is detailed and specific.
2.
Label the following diagram of the skin (hair, sabaceous gland, nerve, muscle, sweat
gland, heavy pressure receptor) NOTE: There will be some empty lines.
3. For the following receptors, state the function, the location (epidermis, dermis or
hypodermis) and explain how their functions determine their location in the skin (ie:
why they each have an ideal location to carry out their function).
Sensory Receptor
Gentle Pressure
Cold
Touch
Heat
Heavy Pressure
Pain
Function
Location
Why the Location is
Ideal
4.
Label the lettered parts in the following diagram, using the following list:
blind spot, sclera, cornea, lens, iris, vitreous humour, optic nerve, retina
iv)
i)
ii)
v)
vi)
vii)
iii)
viii)
2. (7 points) Write the name of the part that does each of the following functions:
a)
_______________________
This coloured muscle contracts and expands to vary the amount of
light allowed into the eye
b)
_______________________
This part focuses the light to the retina
c)
_______________________
This white part protects and holds the eye together
d)
_______________________
This part of the eye collects the light
e)
_______________________
This covers and protects the front of the eye
f)
_______________________
This jelly-like clear substance allows light to pass through the eye
g)
_______________________
This carries the signal of what the eye sees to the brain
5.
Label the following diagram of the synapse with the following words: ion channels, vesicles,
neurotransmitter, mitochondria, terminal, dendrite, synaptic cleft, pre - synaptic neuron, post –
synaptic neuron.
a) Define “action potential”:
____________________________________________________________________________
b) What are the charged particles that travel through the channels to create an action potential called?
Give one example.
_______________________________ ex: ________________________________
c) Which part of the pre – synaptic neuron is located in the synapse? Circle the correct answer.
(terminal or dendrite)
d) How do neurotransmitters help the nerve cells overcome the fact that an action potential cannot
cross over the synaptic cleft?
___________________________________________________________________________________
8. (3 points) Which nerve cell RECIEVES neurotransmitter that has been released into the synaptic cleft?
Circle the correct answer. (pre – synaptic neuron or post synaptic neuron).
6.
Label the following diagram with each of the following words: receptor organ, sensory
(afferent) neuron, grey matter, motor (efferent) neuron, effector organ
7. Which organ creates a response to the stimulus? ________________________
8. Which organ receives the messages first? Circle the correct answer. (brain or spinal cord)
9. What is the overall function of the nervous system?
10. What organs are part of the CNS? What makes up the PNS?
11. Label the axon, dendrite and cell body on the following diagram of a nerve cell. Also draw an arrow
below the image to show the direction of the nerve impulse as it passes through the nerve cell. /4
12. What is the name of the area between two nerve cells where a message is transmitted?
_____________________________________________
13. Explain how an impulse is transmitted from one nerve cell to the next. You may draw a labelled
picture as part of your explanation.
14. Refer the following diagram to answer the questions.
2
1
3
a) State what function is carried out in the following labelled sections found in the brain image above.
1. ______________________________________________________________________________
2. ______________________________________________________________________________
3. ______________________________________________________________________________
b) Label the cerebrum, cerebellum, and brain stem on the diagram above.
State which part of the brain (1, 2 or 3) carries out the following functions:
i. ____________________________
Hormone control & regulation; involuntary movement
ii. ___________________________
thinking, language, motor control, etc.
iii. ___________________________
Balance & coordination
15. In the following diagrams, write the appropriate gas (CO2 or O2) in the boxes provided. (/4)
16. The following table provides the nutritional value of the food in Patrick’s meal plan.
The values listed are for one serving of each item.
Food Group
Food Item
Milk products
Mozarella
Cheese
White Bread
Bread and
Cereals
Fruits and Veg
Meat
Meat
Breads and
cereals
Fruits and Veg
Meat
Meat
Fruit and Veg
Fruit and Veg
Breads and
Cereals
Milk Products
Amount of
one
serving
45 g
Enegy (KJ)
Protein
(g)
Carbs (g)
Fats (g)
530
9
1
10
1 slice
340
2
15
1
Grapefruit Juice
Bacon
Egg
Noodles
250 mL
1 slice
1 egg
250 mL
420
240
330
880
1
6
6
7
24
0
1
39
0
4
6
2
Canned
tomatoes
Ground Beef
Steak
Potato
Peas
Crackers
250 mL
220
2
11
1
90 g
90 g
1 potato
250 mL
4 crackers
1080
1330
380
510
230
22
29
3
10
1
0
0
21
20
7
18
5
0
1
3
2% milk
250 mL
540
9
12
5
i)
At dinner, Patrick eats a burger with cheese and a white bun. Which important
nutrient(s) is being excluded?
ii)
What could Patrick add to his dinner in order to supply the missing nutrient(s)?
iii)
Based on the information above, propose a simple meal that is low in fats, and
includes a good source of protein, carbohydrates, micronutrients and fibre.
17. Give two similarities and two differences between the way our sense of smell and our
sense taste works. Explain how these two senses operate together in order for us to properly
taste something.
Similarities:____________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
____________________
Differences:____________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
____________________
18. Sensory nerves can be classified depending on the type of stimulus they receive. For
example, there are chemoreceptors, mechanoreceptors, and photoreceptors.
Define the word “stimulus” in the context of a sensory nerve. Give three examples of different
types of stimuli for our neurons, and give a specific example of each.
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
________________________________________
19. Describe how sound is transformed as it travels through the ear?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________
20. Hearing loss occurs when the cilia in the cochlea break. What is the regular function of the
cilia in the ear?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________