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Year 9 Biology: Spring Term 2024

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.

Cells in plant roots do not photosynthesise.


Give one reason why.

a)

They do not have any oxygen

b)

They do not have any carbon dioxide

c)

They do not have any light for photoynthesis

d)

The do not have any glucose for energy

2.

Algae can photosynthesise.

Complete the word equation for photosynthesis.

water + ______1._________ --------> ________2._______ + oxygen

a)

1 Carbon Dioxide

b)

1 Glucose

c)

2 Carbon Dioxide

d)

2 Glucose

3.
Where does photosynthesis take place?
a)
The leaves.
b)
The roots.
c)
The branches.
d)
The kitchen.
4.
If a plant receives more carbon dioxide, what happens to the rate of photosynthesis?
a)
Increases
b)
Decreases
c)
Stays the same
5.

What are the products of aerobic respiration?

a)

glucose and carbon dioxide

b)

glucose and water

c)

carbon dioxide and water

d)

oxygen and water

6.

Where in the body does respiration occur?

a)

In the heart

b)

In all living cells

c)

In the muscles

d)

In the lungs

7.

Respiration is ....

a)

The movement of the diaphragm

b)

Breaking down starch to sugar

c)

Releasing energy from glucose

d)

Breathing

8.

Which equation shows the reaction for anaerobic respiration in animals?

a)

carbon dioxide + water --> glucose + oxygen

b)

glucose + Oxygen --> lactic acid + energy

c)

glucose + oxygen --> carbon dioxide + water + energy

d)

glucose --> lactic acid + energy

9.

What happens to breathing and heart rate when we exercise?

a)

They decrease

b)

They increase

c)

They stay the same

d)

They go up and down randomly

10.

Why does breathing rate and heart rate increase when we exercise?

a)

We need more water so we can respire more

b)

We need more oxygen so we can respire more

c)

Trick question! We don't

d)

Because we get hotter

11.

Gametes are:

a)

Sex cells

b)

Only found in males

c)

A part of a cell

d)

A type of organ

12.
Fertilisation is animals is when...
a)
The embryo begins to develop into a baby.
b)
The embryo attaches to the lining of the uterus
c)
Pollen from the anther is transferred to the stigma.
d)
The nucleus of a sperm joins with the nucleus of an egg.
13.
What is the male gamete in plants called?
a)
Pollen
b)
Carpel
c)
Sperm
d)
Egg
14.
What do seeds NOT require for germination?
a)
Oxygen
b)
Light
c)
Warmth
d)
Water
15.

Which part of the flower is the stigma?

a)

A

b)

F

c)

G

d)

D

16.

Which structure is the testes?

a)

F

b)

G

c)

A

d)

B

17.

Which structure is the cervix?

a)

J

b)

L

c)

H

d)

K

18.

Which structure is the urethra?

a)

E

b)

C

c)

H

d)

L

19.

What is the average length of the menstrual cycle?

a)

14 days

b)

21 days

c)

28 days

d)

35 days

20.

If dogs have 78 chromosomes in all their body cells. How many chromosomes would their offspring have in each of their body cells?

a)

39

b)

78

c)

156

d)

46

21.

Why are you not genetically identical to your mom?

a)

You get all your genes from her

b)

You grew and developed in her

c)

You dad has strong genes

d)

You get half DNA from mom and half DNA from dad

22.

What is the periodic shedding of tissues and blood from the inner lining of the

uterus?

a)

menopause

b)

ovulation

c)

pregnancy

d)

menstruation

23.

What is the function of A?

a)

Produce gametes (eggs)

b)

Produce gametes (sperm)

c)

Transport gametes (sperm)

d)

Transport gametes (egg)

24.
These are used to study the distribution of organisms in an ecosystem
a)
quadrats
b)
microscopes
c)
quadrilateral
d)
measuring cylinders
25.

Ten 1m2 quadrats were placed in a 40m2 field. On average 2 snails were found in every quadrat. Estimate the population size of the whole field.

a)
80
b)
20
c)
10
d)
40
26.
What does biodiversity mean?
a)
Only one species in an area.
b)
The different amount of species in an area
c)
All abiotic life
d)
Nitrogen fixation
27.

What are some ways we can help in maintaining biodiversity?

a)

Get involved with ecological restoration in your area.

b)

Prevent invasive species from overpopulating.

c)

Don't use chemical pesticides on crops.

d)

All of the above

28.
High biodiversity is 
a)
having a lot of the same organism.
b)
having a few of the same organism.
c)
having a lot of variety of different organisms.
d)
only having one of each organism. 
29.

What are peat bogs an important store of?

a)

Carbon

b)

Nitrogen

c)

Water

30.

What is the major cause of acid rain?

a)

Ozone

b)

Carbon dioxide

c)

Sulfur dioxide and nitrogen oxides

31.

Which two human activities cause global warming?

a)

Burning fossil fuels

b)

Eating vegetables

c)

Farming cows

d)

Turning off lights

e)

Using too much water

32.

What type of population would you ESTIMATE using a quadrat?

a)
b)
c)
d)
33.

Temperature, light intensity and water are all _____ parts of the environment

a)

alive

b)

biotic

c)

abiotic

d)

living

34.

All the organisms that live and interact in an ecosystem

a)

Population

b)

Community

c)

Habitat

d)

Interdependent

35.

Why do scientists use sampling techniques to gather population data rather than counting everything?

a)

sampling is more efficient and achievable

b)

sampling is more accurate

c)

scientists prefer estimations

d)

sampling is cheaper

36.

What is the best way to place a quadrat?

a)

Place it where you like

b)

Divide the sample area into a grid and use a random number generator to choose a square.

c)

Throw the quadrat so it's random

d)

Divide the sample area into a grid and choose a square.

37.

Which of the following hypotheses would we use a line transect for?

a)

Comparing the population of daisies growing on lawns at the front and back of a house

b)

Seeing if the height of stinging nettles changes as you move further away from a footpath

c)

Estimating the total population of strawberry plants in a farmer's field

d)

Investigating changes in the plant species present in sand dunes as you move further away from a beach

38.

A student was randomly sampling to estimate a clover population. In 5 quadrats, they found 11, 8, 11, 9 and 1 clover plants. What is the mode for these results?

a)

8

b)

9

c)

11

d)

40

39.

Natural Selection is driven by a change in the environment and survival of the

a)

Earth

b)

Fastest

c)

Fittest

d)

Biggest

40.

Why are advantageous traits more likely to be passed onto offspring?

a)

Because they are more likely to survive and reproduce.

b)

Because they come from dominant alleles.

c)

Because they come from recessive alleles.

d)

Because the organism knew it needed that trait, survives, and passes it on.

41.

Mutations are a change in what?

a)

DNA

b)

tRNA

c)

protein

d)

rRNA

42.
Why is the mouse population changing over time?
a)
The light mice can reproduce more successfully than the dark mice
b)
The hawks eat more dark mice than light mice because the dark mice taste better
c)
The hawks eat more light mice than dark mice because they can see the light mice more easily
d)
The hawks eat more dark mice than light mice because they can see the dark mice more easily
43.
What process is being shown in this image?
a)
Variation
b)
Natural Selection
c)
Selective Breeding
d)
Homeostasis
44.
The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?
a)
Dark moth
b)
Light moth
c)
Both will be equally successful
d)
Neither will be successful
45.
These moths are all the same species. The differences between their wings is an example of ________________
a)
Natural Selection
b)
Variation
c)
Homeostasis
d)
Extinction
46.
The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?
a)
Fossil A and C are the same age
b)
Fossil B is older than fossil C
c)
Fossils A is older than fossil B
d)
Fossil D is older than fossil C
47.

What is the collective term for the male part of the flower?

a)

Carpel

b)

Sepal

c)

Petal

d)

Stamen

48.

What is fertilization?

a)

the process by which the male gamete fuses with an ovum

b)

When the pollen is moved from the anther to stigma

c)

the process by which the seed is formed

49.

What is the main function of the flower?

a)

to make seeds for new plants (reproduction)

b)

to help in the process of photosynthesis

c)

to make chlorophyll

d)

to look pretty

50.

Which of the following shows the female reproductive parts of a flower?

a)

anther, filament, ovary, ovule

b)

stigma, filament, ovary, ovule

c)

stigma, style, ovary, ovule

d)

anther, filament, ovary, ovule

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