WorksheetsAnatomy: Homeostasis and Feedback Loops
Total questions: 16
Worksheet time: 16mins
Name
Class
Date
1.
A feedback loop best fits which characteristic of life?
a)
Cells
b)
Organization
c)
Homeostasis
d)
Adaptation
2.
According to the feedback loop, what does high blood sugar promote?
a)
Insulin Release
b)
Glucagon Release
c)
Insulin Uptake
d)
Glycogen Uptake
3.
The two types of feedback systems that help organisms maintain homeostasis are:
a)
positive and negative
b)
receptor and effector
c)
static and dynamic
d)
minor and major
4.
Maintaining body temperature is an example of a:
a)
negative feedback loop
b)
positive feedback loop
5.
The process of childbirth is an example of:
a)
negative feedback loop
b)
positive feedback loop
6.
The "cause" for something to happen is the
a)
response
b)
effect
c)
stimulus
d)
homeostasis
7.
The "effect" of a given stimulus is the...
a)
response
b)
stimulus
c)
cause
d)
result
8.
Rapid growth during puberty causes your body to release more and more growth hormones. As you grow, more and more growth hormones are released until puberty is reached, and then the hormones stop.
a)
Positive Feedback Response
b)
Negative Feedback Loop
9.
If the calcium in your blood decreases below homeostasis levels, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up.
a)
Positive Feedback Response
b)
Negative Feedback Loop
10.
When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels.
a)
Positive Feedback Response
b)
Negative Feedback Loop
11.
When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.
a)
Positive Feedback Response
b)
Negative Feedback Loop
12.
Detects change and sends a message to the control center
a)
receptor
b)
control center
c)
effector
d)
regulation
13.
Receives the message from the receptor and coordinates a response
a)
control center
b)
effector
c)
glucagon
d)
homeostasis
14.
responds to the output from the control center
a)
control center
b)
receptor
c)
thermoregulation
d)
effector
15.
reverses the direction of change
a)
positive feedback
b)
effector
c)
hypothalamus
d)
negative feedback
16.
increases or speeds up original change
a)
negative feedback
b)
positive feedback
c)
endotherm
d)
ectotherm
100 %
