WorksheetsSemester 1 review
Total questions: 23
Worksheet time: 12mins
If the frog dies, how are the grasshoppers affected?
their population will increase
their population will decrease
there will be no affect
the owls will eat more grasshoppers
What type of heterotroph is the weasel?
herbivore
carnivore
detritivore
omnivore
Which level of organization best describes this picture?
organism
population
biological community
ecosystem
How do the birds get the nitrogen they need to build proteins?
eat bugs that ate the plants
drink water
eat mud
Why is water a polar molecule?
has a positive and a negative end
has two positive ends
has two negative ends
does not have charged ends
Which of these is the correct diagram for a water molecule?
A
B
C
These are examples of which group of macromolecules?
carbohydrates
lipids
proteins
nucleic acids
What are the major elements found in carbohydrates?
carbon, hydrogen and oxygen
carbon, hydrogen
carbon, hydrogen, oxygen and protein
carbon
This is an example of which group of macromolecules?
carbohydrates
lipids
proteins
nucleic acids
These examples are of which group of macromolecules?
carbohydrates
lipids
proteins
nucleic acids
Which of these is an example of an amino acid in proteins?
A
B
C
What type of heterotroph is an earthworm that eats dead and decaying materials?
carnivore
omnivore
herbivore
detritivore
Which term best describes this fluffy animal?
population
biological community
organism
biome
If these crocodiles are getting free dental care from the birds, and the birds are getting free food from the crocodiles, what type of relationship is this?
commensalism
mutualism
parasitism
symbiosis
The leaves of this plant produce their own food using sunlight in the process of photosynthesis. Which of these terms describes them:
autotroph and producer
autotroph and heterotroph
producer and consumer
carnivore and autotroph
Why do animals need proteins?
to make nucleotides
denitrification
to produce heat
to make muscles
How do plants get the carbon they need to build sugars?
CO2 enters the roots
CO2 enters the leaves
CO2 enters animals
CO2 from bacteria
Which of these best describes how nitrogen moves through an ecosystem?
atmosphere>>bacteria >>plants>>animals
bacteria>>atmosphere>>plants>>animals
animals>>plants>>bacteria>>atomosphere
What part of an enzyme attaches to the substrate?
enzyme
active site
they don't they attach to products
When an enzyme is done with a reaction, what does it release?
active site
substrate
product
Which letter represents transpiration?
A
B
C
D
E
Which letter represents precipitation?
A
B
C
D
E
If cooking oil is liquid at room temperature, then it is a
saturated fat
unsaturated fat
not a fat at all
