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Worksheets

10/11 Review

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
2.
Monosaccharides are monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
3.
Waxes, oils and fats are examples of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
4.
Which of the following organic compounds is the main source of energy for living things?
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
5.
Which macromolecule stores energy, insulates us, and makes up the cell membrane?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
6.

Enzymes belong to which class of macromolecules?

a)

lipids

b)

carbohydrates

c)

proteins

d)

nucleic acids

7.

Sugar belongs to which class of macromolecules?

a)

proteins

b)

lipids

c)

nucleic acids

d)

carbohydrates

8.

Which of the following is NOT a macromolecule?

a)

Proteins

b)

Lipids

c)

Fiber

d)

Carbohydrates

e)

Nucleic Acid

9.

Which of the following is NOT found in all macromolecules?

a)

Nitrogen

b)

Oxygen

c)

Carbon

d)

Hydrogen

10.

How would you test for the presence of glucose?

a)

Brown paper test

b)

Benedict test

c)

Iodine test

d)

Biuret test

11.

How would you test for the presence of lipids?

a)

Brown paper test

b)

Benedict test

c)

Iodine test

d)

Biruet test

12.

How would you test for the presence of starch?

a)

Brown paper test

b)

Benedict test

c)

Iodine test

d)

Biruet test

13.

How would you test for the presence of protein?

a)

Brown paper test

b)

Benedict test

c)

Iodine test

d)

Biuret test

14.

Result of the brown paper test: oily stain, translucent paper

Is this a positive or negative result?

a)

Positive

b)

Negative

15.

Result of the brown paper test: paper is dry, not translucent

Is this a positive or negative result?

a)

Positive

b)

Negative

16.

Result of the Benedict test: sample turned orange

Is this a positive or negative result?

a)

Positive

b)

Negative

17.

Result of the Biuret test: sample turned purple/violet

Is this a positive or negative result?

a)

Positive

b)

Negative

18.

How would you test for the presence of glucose?

a)

Brown paper test

b)

Benedict test

c)

Iodine test

d)

Biuret test

19.

How would you test for the presence of this molecule?

a)

Brown paper test

b)

Benedict test

c)

Iodine test

d)

Biuret test

20.

Result of the brown paper test: paper is dry, not translucent

Is this a positive or negative result?

a)

Positive

b)

Negative

21.

Result of the Benedict test: sample stayed blue

Is this a positive or negative result?

a)

Positive

b)

Negative

22.

Result of the iodine test: sample turned very dark purple/black

Is this a positive or negative result?

a)

Positive

b)

Negative

23.

Result of the Biuret test: sample turned blue

Is this a positive or negative result?

a)

Positive

b)

Negative

24.

What does a purple result for the Biuret test tell you?

a)

There is protein in the sample

b)

There is glucose in the sample

c)

There is starch in the sample

d)

There are lipids in the sample

25.

What does a positive result for the Benedict test tell you about lipids?

a)

There are lipids in the sample

b)

There are NO lipids in the sample

c)

It tells you nothing about lipids, because it is not the correct test for lipids

26.

If there is glucose in the sample, what result would you expect from the Benedict test?

a)

Dark purple/black

b)

Yellow/amber

c)

Orange

d)

Light blue

27.

If there are lipids in your sample, what result would you expect from the brown paper test?

a)

Dry paper, not translucent

b)

Orange paper

c)

Stained paper, translucent

d)

Purple paper

28.

Which of these nitrogen cycle processes converts atmospheric nitrogen to a soil form of nitrogen that is usable by plants?

a)

nitrogen fixation

b)

nitrification

c)

denitrification

d)

ammonification

e)

assimilation

29.
Organisms that break down dead plants & animals and release nitrogen back into atmosphere...
a)
bacteria
b)
plants
c)
animals
d)
producers
30.
Organisms that need nitrogen to survive
a)
only plants
b)
only animals
c)
only bacteria
d)
all living organisms
31.
If the atmosphere is 78% N2, why can't we just get our nitrogen by breathing?
a)
We have no mechanism to break the triple bond of nitrogen between the atoms.
b)
Our lungs would be damaged by the N2.
c)
We need Oxygen for cellular respiration.
d)
The legumes take it up first.
32.
Plants and animals cannot use nitrogen directly from the air.
a)
True
b)
False
33.
After plants and animals contain nitrogen, what puts it back into atmosphere and soil?
a)
decomposition
b)
precipitation
c)
condensation
d)
bacteria
34.

What needs to happen so that two nitrogen atoms separate in the atmosphere?

a)

Wind

b)

Lightning

c)

Rain

d)

Thunder

35.

From where do plants absorb nitrogen?

a)

Water

b)

Air

c)

Soil

d)

Animals

36.

A correct path that Nitrogen could take would be...

a)

Air--> Animals--> Plants--> Bacteria

b)

Air--> Bacteria--> Plants--> Animals

37.

Identify the circled part

a)

small intestine

b)

large intestine

c)

stomach

d)

cecum

38.

Herbivores have relatively _____ small intestines.

a)

short

b)

long

39.

This molecule is found in plants and requires a relatively large cecum to in order to be digested:

a)

carbon dioxide

b)

symbiotic matter

c)

cellulose

40.

A consumer that feeds on dead organic matter / dead organisms is called a(n)

a)

producer

b)

omnivore

c)

herbivore

d)

detritivore

e)

parasitic consumer

41.

Energy can neither be created nor destroyed. This aligns with what law?

a)

the law of saving energy

b)

consumer save and spend law

c)

potential energy theory

d)

the law of conservation of matter

42.

The four main phases of digestive systems are

a)

Digestion, ingestion, absorption, elimination.

b)

Ingestion, digestion, absorption, elimination.

c)

Ingestion, digestion, elimination, absorption.

d)

Absorption, ingestion, digestion, elimination.

43.

Which organism would have a small and more efficient digestive system?

a)

Organism A

b)

Organism B

c)

They are the same size

d)

It is not possible to tell from this information

44.

The organisms shown here is most likely a(n)....

a)

herbivore

b)

Omnivore

c)

Carnivore

d)

None of these

45.
True or False
In a chemical reaction, no new atoms are created, and no atoms are destroyed. 
a)
true
b)
false
46.
The left side of the equation below is called
a)
Products
b)
Reactants
47.

In order to break apart a polymer during digestion, ________ must be added.

a)

carbon

b)

water

c)

oxygen

d)

hydrogen

48.

What are the parts of a chemical reaction?

a)

Products

b)

Reactants

c)

Both Products and Reactants

d)

Wonder Woman would know

49.

What are the cellular tools that break apart lipids and polysaccharides and proteins called?

a)

scissors

b)

enzymes

c)

reactants

d)

energy

50.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24

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