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Grade 7 Biology Revision (Final)

Total questions: 90

Worksheet time: 1hrs 21mins

Name
Class
Date
1.
Living organisms use which macromolecule to store and transmit genetic information?
a)
Fat
b)
Protein
c)
Sugar
d)
Nucleic acid
2.
Which is a Carbohydrate's monomer?
a)
fatty acids
b)
Amino acids
c)
Monosacharide
d)
Nucleotide
3.
Which IS a function for Nucleic Acids?
a)
Code your genes
b)
To create a nucleus
c)
To balance out your bases
d)
To create energy
4.

Which two bio molecules have only Carbon, Hydrogen, and Oxygen?

a)

Carbohydratess/Nucleic Acids

b)

Lipids/Carbohydrates

c)

Proteins/Nucleic Acids

d)

Carbohydrates/Proteins

5.
Organic molecules that always contain carbon, oxygen and hydrogen, often in a 1:2:1 ratio
a)
carbohydrates
b)
functional groups
c)
enyzme
d)
monosaccaride
6.
A type of biological molecule that includes fats, oils, hormones, waxes, and components of cellular membranes ...
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
7.
Glucose is an example of a
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
8.
Which biomolecule is this a picture of?
a)
Protein
b)
Nucleic Acid
c)
Lipid
d)
Carbohydrate
9.

The entire molecule shown is a(n) ____ the part circled in red is a(n) ___.

a)

polymer, macromolecule

b)

polymer, monomer

c)

macromolecule, monomer

d)

monomer, polymer

10.
In polymerization, complex molecules are formed by the joining together of
a)
macromolecules.
b)
carbohydrates.
c)
polymers.
d)
monomers.
11.
Starch is a polymer formed from 
a)
fatty acids. 
b)
monosaccharides.
c)
amino acids.
d)
nucleotides.
12.

Large molecules in living cells are known as ___________.

a)

macromolecules

b)

monomers

c)

atoms

d)

elements

13.

The three types of carbohydrates are

a)

sugars, starches, cellulose

b)

sugars, lipids, cellulose

c)

cellulose, glycogen, lipids

d)

amino acids, nucleic acids, lipids

14.

_______ is the storage form of excess glucose in plants.

a)

cellulose

b)

glycogen

c)

sugar

d)

starch

15.

_________ is the storage form of excess glucose in animals.

a)

sugar

b)

cellulose

c)

starch

d)

glycogen

16.

_________ is the stringy, fibrous material that serves as a strengthening tissue in the cell walls of plants.

a)

glycogen

b)

sugar

c)

cellulose

d)

starch

17.

A _________ contains one molecule of sugar.

a)

disaccharide

b)

polysaccharide

c)

lipid

d)

monosaccharide

18.

A __________ contains 3 or more monosaccharides.

a)

simple sugar

b)

polysaccharide

c)

disaccharide

d)

water molecule

19.
DNA is a polymer formed from 
a)
fatty acids. 
b)
monosaccharides.
c)
amino acids.
d)
nucleotides.
20.

Which choices below describe lipids.

a)

fats

b)

oils

c)

waxes

d)

muscle

21.

Monomers of lipids are _____________.

a)

amino acids

b)

fatty acids

c)

neucleotides

d)

simple sugars

22.

Monomers of neuclic acids are _____________.

a)

amino acids

b)

fatty acids

c)

neucleotides

d)

simple sugars

23.

Each of the following is a primary tissue type except one. Identify the exception

a)

muscle tissue

b)

nervous tissue

c)

bone tissue

d)

connective tissue

e)

epithelial cells

24.

The basic unit of structure and function in life -

a)

organ

b)

organism

c)

organelle

d)

cell

25.

A structure made up of different types of tissue and performs a specific job.

a)

cells

b)

tissue

c)

organ

d)

organ system

26.

A group of similar cells that perform the same function.

a)

organelle

b)

tissue

c)

cells

d)

organ system

27.

A group of organs that work together to perform a major function is an organ

a)

organ

b)

organ system

c)

cell

d)

organism

28.

Which of the following is the correct order of organization in living things from most basic (smallest) to most complex (biggest)?

a)

Organism, cell, tissue, organ, organ system

b)

Organ system, organ, tissue, cell, organism

c)

Cell, tissue, organ, organ system, organism

d)

Cell, organ, tissue, organ, organism, organ system

29.

Which of the following statements describes an

organ?

a)

The basic unit of structure and function in

living things.

b)

A group of cells that work together to perform a

specific function.

c)

A structure in the body that is composed of

different kinds of tissue.

d)

A group of organs that work together to perform a major function in the body.

30.
This is a example of........ 
a)
organ system
b)
cells
c)
organ
d)
tissue
31.
This is a example of ........
a)
cell
b)
organ system
c)
organ
d)
tissue
32.
This is a example of ........
a)
cell
b)
tissue
c)
organ 
d)
organ system
33.

This picture represents which of the levels of organization?

a)

atom

b)

organ

c)

organelle

d)

cell

34.
Which part of the mouth provides mechanical digestion?
a)
teeth
b)
saliva
c)
smooth muscles
d)
gastric juices (HCl acid)
35.
Which part of the mouth provides chemical digestion?
a)
teeth
b)
saliva
c)
smooth muscles
d)
gastric juices (HCl acid)
36.

Where does the digestion of proteins take place?

a)

Mouth and stomach

b)

Stomach and small intestine

c)

Mouth and small intestine

d)

Mouth, stomach and small intestine

37.

Which of these nutrients are digested in the mouth using enzymes?

a)

Carbohydrates and proteins

b)

Proteins

c)

Carbohydrates

d)

Fats

38.

What is the enzyme contained in the saliva?

a)

Amylase

b)

Pepsine

c)

Hydrochloride acid

d)

Lipase

39.

Where is the pancreatic juice released?

a)

Small intestine

b)

Stomach

c)

Large intestine

d)

Mouth

40.

Where is the bile stored?

a)

Liver

b)

Gall bladder

c)

Pancreas

d)

Small intestine

41.

What is the nutrient that bile facilitates its digestion?

a)

Proteins

b)

Lipids

c)

Carbohydrates

d)

Protein and lipids

42.

Where is the bile released?

a)

Pancreas

b)

Liver

c)

Stomach

d)

Small intestine

e)

Mouth

43.

What is the function of the villi?

a)

To increase the absorption surface

b)

To digest the last nutrients

c)

To form feces

d)

To comb the small intestine

44.

Digestive organ where most chemical digestion and absorption of food takes place is the...... .

a)

pancreas

b)

small intestine

c)

liver

45.

..............produces bile to break up fat particles.

a)

Pancreas

b)

Large intestine

c)

Liver

46.

............produces enzymes for the small intestine that help break down starches, proteins, and fats.

a)

pancreas

b)

large intestine

c)

liver

47.
Which of the following is an accessory organ?
a)
Stomach
b)
Small Intesting
c)
Liver
d)
Large Intestine
48.

The process of breaking down food into smaller molecules is called......

a)

absorption

b)

digestion

c)

peristalsis

d)

villi

49.

Which organ connects the mouth to the stomach?

a)

esophagus

b)

small intestine

c)

large intestine

d)

pancreas

50.

Amylase in saliva changes starch into...

a)

maltose sugar

b)

waste

c)

stomach acid

d)

chyme

51.

Chemical digestion happens inside....

a)

stomach

b)

liver

c)

pancreas

d)

large intestine

52.
Where does digestion begin?
a)
Mouth
b)
Esophagus
c)
Stomach
d)
Small Intestine
53.

The removal of undigested food and other wastes from your body is called...........

a)

digestion

b)

absorption

c)

ingestion

d)

elimination

54.

What are the main functions of the excretory system?

a)

deliver oxygen to the body

b)

deliver nutrients to the body

c)

remove water and waste from the body

d)

remove disease from the body

55.

Which organs help to remove waste from the body?

a)

Lungs, stomach, bladder, and kidneys

b)

Lungs, heart, bones, and bladder

c)

Lungs, large intestine, bladder and kidneys

d)

Lungs, esophagus, bladder and kidneys

56.

Which organ(s) remove waste gases?

a)

Bladder and kidneys

b)

Lungs

c)

Large intestine

57.

Which organ filters blood?

a)

Kidneys

b)

Large Intestine

c)

Lungs

d)

Bladder

58.

Which organ(s) absorb excess water and store solid waste?

a)

Bladder and kidneys

b)

Large Intestine

c)

Lungs

59.

What are the main functions of the excretory system?

a)

deliver oxygen to the body

b)

deliver nutrients to the body

c)

remove water and waste from the body

d)

remove disease from the body

60.

What is organ is #1?

a)

Kidney

b)

Stomach

c)

Bladder

d)

Heart

61.

What organ is #3?

a)

Kidney

b)

Stomach

c)

Bladder

d)

Heart

62.
How many kidneys do you have?
a)
1
b)
3
c)
5
d)
2
63.

True or False:

Kidneys filter waste from blood.

a)

True

b)

False

64.

Which of the following is NOT part of your excretory system?

a)

Heart

b)

Lungs

c)

Kidneys

d)

Skin

65.

The job of your kidneys is to...

a)

Create feces

b)

Take carbon dioxide out of your blood

c)

Put oxygen into your blood

d)

Clean blood, sending waste to bladder

66.
The job of the red blood cell is to
a)
fight infection
b)
deliver oxygen and discard carbon dioxide
c)
form scabs
67.
The heart has how many chambers (rooms)?
a)
four
b)
three
c)
two
68.
Arteries carry blood _________ from the heart.
a)
to
b)
away
69.
Capillaries connect veins to
a)
other capillaries
b)
veins
c)
arteries
70.
Your pulse tells how fast your ___________ is beating.
a)
heart
b)
lungs
71.
The right side of the heart sends blood to the 
a)
body
b)
lungs
72.
The left side of the heart sends blood out of the heart to 
a)
your lungs
b)
the rest of your body
73.
There are fewer white blood cells than red blood cells.
a)
true
b)
false
74.
White blood cells 
a)
carry oxygen and get rid of carbon dioxide
b)
form scabs
c)
fight disease
75.
The tube that is in your throat that is part of the respiratory system is called the
a)
esophagus
b)
trachea
c)
bronchial tube
76.
The more physically active you are, the more your body needs
a)
carbon dioxide
b)
oxygen
c)
hydrogen
77.
The System that contains blood vessels and the heart is the...
a)
circulatory system
b)
respiratory system
c)
digestive system
d)
Integumentary System
78.

When you breathe, your lungs take in ___ and remove ___.

a)

air, oxygen

b)

oxygen, carbon dioxide

c)

carbon dioxide, waste

d)

waste, air

79.
What does blood transport?
a)
Nutrients
b)
Oxygen 
c)
Carbon Dioxide
d)
All of the above
80.

When you breathe in, the lungs _________ in order to _________ air pressure, so that air will flow in.

a)

expand, decrease

b)

shrink, decrease

c)

expand,increase

d)

shrink, increase

81.

The Lymphatic System is a one way system. True or false?

a)

True

b)

False

82.

Check all that apply.

The Lymphatic System's function is...

a)

To return tissue fluid to the blood.

b)

To transport oxygen.

c)

To help defend the body against infection

d)

To transport fat

83.

The lymphatic system consist of?

a)

Lymph and lymph vessels

b)

Lymph and water

c)

Lymphocytes and arteris

84.

Which of the following is NOT a function of the lymphatic system?

a)

removes excess fluid from around organs

b)

circulates blood

c)

absorbs/transports fats

d)

produces white blood cells

85.

Which of the following cells are responsible for fighting diseases?

a)

White blood cells

b)

Red blood cells

86.

The lymphatic system consist of?

a)

Lymph and lymph vessels

b)

Lymph and water

c)

Lymphocytes and arteris

87.

lymph is a colourless watery fluid that contains lymphocytes.

a)

True

b)

False

88.

Lymph nodes are located in

a)

armpits

b)

shoulder

c)

neck

d)

back

e)

groin

89.

Two main organs of the lymphatic system are:

a)

Thymus & Pancreas

b)

Spleen & Thymus

c)

Pancreas & Thyroid

d)

Tonsils & Thyroid

90.
a)

Drains tissue fluids, waste products & flights against infection

b)

Removes toxins & waste

c)

Prevent swelling

d)

Fights against infection

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