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Term 3 Week 1 Quiz

Total questions: 20

Worksheet time: 14mins

Name
Class
Date
1.

During child birth a woman's body over produces a hormone called oxytocin until the baby is born. What kind of feedback loop would this be?

a)

Negative Feedback Loop

b)

Positive Feedback Loop

c)

Neutral Feedback Loop

d)

Linear Feedback Loop

2.

When you are hot, your body sweats to cool you down. This means your temperature went above normal and your body sweats to counteract that change to bring you back to normal. What kind of feedback loop would this be?

a)

Negative Feedback Loop

b)

Positive Feedback Loop

c)

Neutral Feedback Loop

d)

Linear Feedback Loop

3.

Osmoregulation means....

a)

maintain water levels

b)

maintain temperature

c)

maintain heart rate

d)

maintain breathing

4.

Thermoregulation means?

a)

Maintain temperature

b)

Maintain water levels

c)

Maintain heart rate

d)

Maintain breathing

5.

When you are cold you...

a)

shiver to create heat

b)

sweat

c)

blood vessels dilate

d)

increase heart rate

6.

Negative Feedback loops are...

a)

Purposeful pushes above normal set values.

b)

Counteract a change to bring it back to normal set values

c)

Are rare

d)

Help with childbirth

7.

Why does a nerve cell look different from a circular red blood cell?

a)

There is no connection between shape and function

b)

Cells all look exactly the same

c)

Cells are shaped differently according to their function. A nerve cell needs long arms for communication.

d)

All cells have the same exact job

8.

Maintaining internal stable conditions is the definition of...

a)

Hypertonic

b)

Hypotonic

c)

Homeostasis

d)

Heterotroph

9.

Which body system controls the body to maintain homeostasis?

a)

excretory

b)

nervous

c)

circulatory

d)

skeletal

10.

The group of organisms that use the process of homeostasis includes

a)

mammals, only

b)

animals, only

c)

plants and animals

d)

all living things

11.

A body system that controls growth and homeostasis by secreting hormones from glands.

a)

skeletal system

b)

nervous system

c)

endocrine sytem

d)

integumentary system

12.

Organ of the endocrine system that secretes hormones.

a)

heart

b)

gland

c)

brain

d)

skin

13.

Chemical made by glands that tell cells to make something or respond in some way.

a)

acid

b)

enzyme

c)

perspiration

d)

hormone

14.
Negative Feedback Loops:
a)
amplify processes
b)
prevent small changes from getting larger
c)
are initiated during childbirth
d)
are found only in plants
15.

What are the effects of insulin and glucagon on the concentration of blood glucose?

a)

A

b)

B

c)

C

d)

D

16.

When the blood glucose concentration is low, which organ releases which hormone?

a)

A

b)

B

c)

C

d)

D

17.

The diagram shows a person sweating in hot weather. What part is played by the sweat glands during the process of sweating?

a)

Effector

b)

Receptor

c)

Sense Organ

d)

Stimulus

18.

Which letter represents a part that may undergo vasodilation?

a)

C

b)

D

c)

E

d)

F

19.

How do liver cells respond to increased insulin levels in the blood?

a)

They absorb glucose and convert it to glycogen

b)

They absorb glucose and convert it to glucagon

c)

They break down glucagon and release the glucose into the blood

d)

They break down glycogen and release the glucose into the blood

e)

They release glucagon into the blood

20.

Which of these would allow you to increase your body temperature if it went below 37oC?

a)

Sweating

b)

Vasoconstriction

c)

Vasodilation

d)

Shivering

e)

Increase in metabolism (respiration)

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