WorksheetsHomeostasis & Biomolecules
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
The way an organism reacts is called -
a)
photosynthesis
b)
a response
c)
a stimulus
d)
homeostasis
2.
A growth response in plants is called a -
a)
stimuli
b)
photosynthesis
c)
homeostasis
d)
tropism
3.
What organelle is mostly responsible for turgor pressure?
a)
cell wall
b)
cytoplasm
c)
vacuole
d)
nucleus
4.
A plant wilting is an example of -
a)
an internal stimulus
b)
an external stimulus
c)
plant death
d)
a response to maintain homeostasis
5.
Which of the following is not an example of external stimuli?
a)
Thirst
b)
Light
c)
Temperature
d)
Gravity
6.
True or False. Wilting is when a plant loses turgor pressure.
a)
True
b)
False
7.
Which biomolecule is found in almost all food sources?
a)
lipids
b)
carbohydrates
c)
proteins
d)
nucleic acids
8.
What are the reactants in photosynthesis?
a)
carbon dioxide and water
b)
water and glucose
c)
glucose and oxygen
d)
water and oxygen
9.
Which of the following is an example of an external stimulus?
a)
Thirst
b)
Eating
c)
Temperature
d)
Sweating
10.
A balanced internal environment is called -
a)
photosynthesis
b)
internal stimulus
c)
homeostasis
d)
external stimulus
11.
What biomolecules cannot be stored for later use?
a)
nucleic acids
b)
carbohydrates
c)
lipids
d)
proteins
12.
Which biomolecule is used for repair, reproduction and protein synthesis?
a)
lipids
b)
proteins
c)
nucleic acids
d)
carbohydrate
100 %
