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Grade 7- Final Revision- 2025

Total questions: 92

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

The ________ surrounds and protects the cell and controls the movement of materials into and out of the cell.

a)

cytoplasm

b)

mitochondrion

c)

nucleus

d)

cell membrane

2.

____________ is the gel-like substance found in a cell and hold organelles in place

a)

chlorophyll

b)

cytoplasm

c)

water

3.

Which cell part protects and provides shape for a plant cell?

a)

nucleus

b)

vacuole

c)

mitochondrion

d)

cell wall

4.

The DNA is found in the ________ of a prokaryote.

a)

nucleus

b)

cytoplasm

5.

Both plant and animal cells have a cell membrane.

a)

True

b)

False

6.

Suppose you were to examine plant and animal cells under a microscope. Which structures would you find in both cell types?

a)

cell wall, cytoplasm, and chloroplast

b)

nucleus, mitochondria, and endoplasmic reticulum

c)

cell wall, endoplasmic reticulum, and mitochondria

d)

all of the above

7.

A vacuole function is

a)

store all genetic information

b)

where water and food are stored

c)

give the cell energy

d)

where food is produced

8.

What is the function of the mitochondria?

a)

Organelle that manufactures ribosomes

b)

Organelle that converts glucose into ATP

c)

Stack of membranes that packages chemicals

d)

Organelle that contains DNA and directs the cell

9.

Where does photosynthesis occur?

a)

mitochondria

b)

ribosome

c)

cytoplasm

d)

chloroplast

10.
How are prokaryotes and eukaryotes different?
a)
prokaryotes are larger
b)
eukaryotes have a nucleus
c)
eukaryotes are simpler
d)
prokaryotes are more complex
11.
The brain or "control center" of the cell. 
a)
Mitochondria
b)
Cell Membrane
c)
Cytoplasm
d)
Nucleus
12.

If many of the ribosomes of a cell were destroyed, what effect would this most likely have on the cell?

a)

The cell would not be able to create energy.

b)

The cell would not be able to make proteins.

c)

The cell would not e able to photosynthesize.

d)

The cell would not be able to break down waste in the cell.

13.

If many of the mitochondria of a cell were destroyed, what effect would this most likely have on the cell?

a)

The cell would not be able to create energy (ATP).

b)

The cell would not be able to make proteins.

c)

The cell would not e able to photosynthesize.

d)

The cell would not be able to make cellular respiration.

14.

True or False: Animal cells have a cell wall.

a)

True

b)

False

15.

Which cell parts are not present in animal cells?

a)

cell membrane & cytoplasm

b)

nucleus & chloroplasts

c)

cell wall & chloroplasts

d)

ribosomes & mitochondria

16.
What is the difference between rough and smooth ER?
a)
There is no difference.
b)
Plants have rough ER, animals have smooth ER.
c)

Rough makes proteins, smooth make lipids.

d)

Rough makes lipids, smooth make proteins.

17.

Which process converts carbon dioxide and water into sugar and oxygen?

a)

Cell repiration

b)

Nucleus

c)

chlorosynthesis

d)

Photosynthesis

18.

Which organisms undergo cell respiration?

1. Plants
2. Animals
3. Bacteria

a)

1 only

b)

1 and 2 only

c)

3 only

d)

All organisms 1,2 and 3

19.

Which organelle is the site of Cell Respiration in Eukaryotes?

a)

mitochondria

b)

chloroplast

c)

nucleus

d)

cell membrane

20.

what is the purpose of photosynthesis?

a)

to convert sunlight to glucose

b)

to make more plants

c)

to convert glucose to usable energy

d)

to change colors of leaves in the fall

21.

What is the purpose of cellular respiration?

a)

to convert sunlight to glucose

b)

to convert glucose to usable energy

c)

to breathe in oxygen and breathe out carbon dioxide

d)

to have cells grow and develop

22.

Where do plants get the energy for photosynthesis to take place?

a)

nutrients in the soil

b)

the sun

c)

chlorophyll

d)

bee pollination

23.

In which organelle does photosynthesis take place?

a)

mitochondria

b)

chloroplast

c)

nucleus

d)

cytoplasm

24.
How are photosynthesis and cellular respiration related?
a)
They have opposite equations
b)
they have the same equation
c)
they both produce carbon dioxide
d)
they both produce oxygen
25.
What are the products in cellular respiration?
a)
water and carbon dioxide
b)
water and glucose
c)
carbon dioxide and oxygen
d)
glucose and oxygen
26.

What cell organelle do animals and plants both have that are needed for cellular respiration to occur?

a)

chloroplasts

b)

mitochondria

c)

cytoplasm

27.

Occurs in both plants and animals.

a)

Cellular respiration

b)

Photosynthesis

28.

What is the relationship between photosynthesis and cellular respiration?

a)

Photosynthesis produces glucose and oxygen, which are used in cellular respiration to produce energy.

b)

Cellular respiration produces glucose and oxygen, which are used in photosynthesis to create energy.

c)

Photosynthesis and cellular respiration are unrelated processes that do not affect each other.

d)

Photosynthesis occurs only in animals, while cellular respiration occurs only in plants.

29.

What is the role of sunlight in photosynthesis?

a)

Sunlight provides the energy needed for plants to convert carbon dioxide and water into glucose.

b)

Sunlight is used to cool the plant during the night.

c)

Sunlight helps in the absorption of nutrients from the soil.

d)

Sunlight is not necessary for photosynthesis to occur.

30.

What are 2 ways you can increase the rate of photosynthesis?

a)

decrease oxygen

b)

increase carbon dioxide

c)

increase light intensity

d)

decrease light intensity

31.

If green is dominant over purple, then what is the genotype of this monster?

a)

Purple

b)

gg

c)

Green

d)

Gg

32.

What is an acquired trait?

a)

physical appearance

b)

heredity

c)

a characteristic that a living thing is born with

d)

a characteristic that a living thing gets during its lifetime

33.

Which genotype is heterozygous?

a)

CC

b)

bb

c)

BB

d)

Bb

34.

In pea plants the allele for yellow color is dominant and the allele for green color is recessive. A homozygous yellow pea plant (YY) is crossed with a homozygous green pea plant (yy). What percentage (%) of the offspring are yellow?

a)

75%

b)

0%

c)

100%

d)

25%

35.

what do we use to symbolize a dominant allele ?

a)

capital letter

b)

both

c)

neither

d)

small letter

36.

What is it called when a gene carries two of the different alleles?

a)

Mamazygous

b)

Homozygous

c)

Monozygous

d)

Heterozygous

37.

An allele whose trait only shows up when no dominant allele is present.

a)

present allele

b)

recessive allele

c)

dominant allele

d)

hidden allele

38.

If Brown eye color (B) is dominant over blue eye color (b). Then, what is the possibility of two heterozygous parents to have an offspring with blue eye color?

a)

50 %

b)

25 %

c)

100 %

d)

75 %

39.

If the dominant trait is having freckles (F) and the recessive trait is no freckles (f), which allele combination(s) below would represent a person who has freckles? (select all that apply)

a)

FF

b)

Ff

c)

ff

40.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
a)
50 % Brown Hair and 50% Blond Hair 
b)
25 % Brown Hair and 75% Blond Hair 
c)
75 % Brown Hair and 25% Blond Hair 
d)
0% Brown Hair and 100% Blond Hair 
41.

The combination of genes a person has, represented by letters, is their...

a)

Genotype

b)

Phenotype

c)

Chromosome

d)

Punnett Square

42.

Look at the punnett square. What is the probability that the offspring would have homozygous alleles for the trait?

a)

100%

b)

75%

c)

50%

d)

25%

e)

0%

43.

Which of the following allele pairs is heterozygous?

a)

RR

b)

Qq

c)

ss

44.
B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
45.
Heterozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
46.
B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
47.
What is the dominant trait?
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
48.

Which of the following genotypes is homozygous dominant?

a)

Yy

b)

yY

c)

yy

d)

YY

49.

Which of the following genotypes is homozygous recessive?

a)

Tt

b)

tt

c)

TT

d)

tT

50.

Brown eyes are dominant to blue eyes. There are two parents that are homozygous dominant and homozygous recessive. What is the percent chance they will have a child with blue eyes?

a)

0%

b)

25%

c)

50%

d)

75%

51.

What force brings the pencil down?

a)

Gravitational

b)

Applied

c)

Friction

d)

Magnetic

52.

Friction is a force that acts in an ___________ direction of movement.

a)

similar

b)

parallel

c)

west

d)

opposite

53.

What two measurements are necessary for calculating speed?

a)

Mass and time

b)

Temperature and mass

c)

Mass and distance

d)

Distance and time

54.

What is defined as a push or pull?

a)

speed

b)

velocity

c)

force

d)

motion

55.

This type of force is when one object pushes or pulls on another object by touching it

a)

Magnetic

b)

Non-contact

c)

Contact

d)

Gravity

56.

______________________ is a force of attraction between two objects. It acts even when objects are not touching.

a)

Heat

b)

Friction

c)

Balanced force

d)

Gravity

57.

What is an example of a force causing an object to change position?

a)

kicking a soccer ball

b)

molding clay

c)

catching a baseball

d)

leaning on a wall

58.

What is the speed of a car that travels 400 m in 20 minutes?

a)

800 m/min

b)

20 m/min

c)

20 miles/hr

d)

200 miles/hr

59.

Which is an example of an unbalanced force?

a)

a puppy sleeping on the couch

b)

a poster hanging on the wall

c)

a jar sitting on a shelf

d)

a girl shooting a basketball

60.

If the net force is equal to zero, the forces acting on the object are

a)

balanced

b)

unbalanced

61.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
62.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
63.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
64.

When an object is moving, friction acts in the _______ direction as the motion.

a)

perpendicular

b)

same

c)

opposite

d)

precise

65.
1.  How far will a train moving at 5.7 km/min go in 45 minutes?
a)
256.5 km
b)
0.12 km
c)
7.89 km
66.
If a man runs at a speed of 70 m/s, and has a time of 30 s. What is the distance he ran?
a)
2100 m
b)
0.233 m
c)
2.33 m
d)
300m
67.
A car travels 300 km in 6 hours. What is the average speed of the car (in km/hr)?
a)
0.02 km/hr
b)
1,800 km/hr
c)
50 km/hr
d)
50 km
68.
An _______ is between the orbits of Mars and Jupiter. 
a)
Oort Cloud
b)
Asteroid belt
c)
Kuiper belt
d)
Photosphere
69.
Venus, Mercury, Earth, and Mars are what type of planet?
a)
Gas Giants
b)
Ice Giants
c)
Terrestrial Planets
d)
Exterior Planets
70.
Which choice shows the correct order of the planets?
a)
Mars, Venus, Earth, Mercury, Jupiter, Saturn, Uranus, Neptune
b)
Earth, Venus, Mars, Mercury, Jupiter, Saturn, Uranus, Pluto
c)
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
d)
Saturn, Venus, Mars, Mercury, Jupiter, Neptune Mercury, Uranus
71.
Jupiter, Saturn, Uranus, and Neptune are what type of planets?
a)
Gas Giants
b)
Ice Giants
c)
Terrestrial Planets
d)

Outer Planets

72.
The four terrestrial planets all have
a)
Rocky surfaces
b)
Hot temperatures
c)
Deep atmospheres
d)
Large size
73.
This gas giant has a large storm in its atmosphere known as The Red Spot
a)
Jupiter
b)
Saturn
c)
Uranus
d)
Neptune
74.

Most likely due to a massive collision, this planet rotates on its side.

a)
Saturn
b)
Venus
c)
Neptune
d)
Uranus
75.

What is the largest planet in our Solar System?

a)

Jupiter

b)

Saturn

c)

Earth

d)

Mars

76.

Which planet is known for having the most moons?

a)

Saturn

b)

Uranus

c)

Jupiter

d)

Neptune

77.

Which planet is often referred to as the 'Red Planet'?

a)

Mercury

b)

Venus

c)

Mars

d)

Earth

78.

Which planet is known for its extreme greenhouse effect?

a)

Earth

b)

Mars

c)

Venus

d)

Mercury

79.

Which planet is known for its beautiful rings?

a)

Jupiter

b)

Uranus

c)

Saturn

d)

Neptune

80.

What is the smallest planet in our Solar System?

a)

Venus

b)

Mars

c)

Earth

d)

Mercury

81.

The hottest known planet is 

a)

Mercury 

b)

Saturn

c)

Venus

d)

Mars

82.

This planet is called the red planet

a)

Venus

b)

Mars

c)

Mercury

d)

Earth

83.

a satellite that revolves around a planet

a)

Galaxy

b)

Moon

c)

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

d)

Mars

84.

A meteoroid that reaches the Earth's surface without burning up completely

a)

Meteorite

b)

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

c)

Moon

d)

Nebula

85.

Material from outer space that burns up as it enters Earth's atmosphere.

a)

Mars

b)

Meteor

c)

Neptune

d)

Asteroid

86.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get Hotter
d)
Stars get Brighter
87.
Red stars are the _____________.
a)
hottest
b)
coolest
c)
biggest
d)
brightest
88.

Blue stars are the _____________.

a)
hottest
b)
coolest
c)
biggest
d)
brightest
89.

Which star has the highest temperature?

a)
A
b)
B
c)
C
d)
D
90.

What type of star has a high temperature and a high luminosity?

a)

White Dwarfs

b)

Blue Giants

c)

Red Supergiants

d)

Smaller Main Sequence stars

91.

What is the color of the lowest surface temperature?

a)

Red

b)

Orange

c)

White

d)

Blue

92.

What type of star has a low temperature and a low luminosity?

a)

White Dwarfs

b)

Blue Giants

c)

Red Supergiants

d)

Smaller Main Sequence stars

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