AQA A2 Biology Questions

Question 1 of 40

1

Fill the blank space to complete the text.

Photolysis of water increases the concentration of protons in the space.

Explanation

Question 2 of 40

2

Fill the blank spaces to complete the text.

Rubisco catalyses the reaction of with CO2 in the Cycle.

Explanation

Question 3 of 40

4

Select from the dropdown lists to complete the text.

( Glycerate, Triose ) Phosphate is converted to ( triose, glycerate ) phosphate as ( 1, 2 ) ATP is converted to ADP +Pi and 1 NADPH is converted to NADP (( reducing, oxidising ) the GP)

Explanation

Question 4 of 40

2

Biomass is the ❌ mass of ❌ material in a specific area at a specific time.

Drag and drop to complete the text.

total

incomplete

living

dead

Explanation

Question 5 of 40

1

How much energy moves from one organism to another?

Select one of the following:

10%
100%
50%
40%

Explanation

Question 6 of 40

2

The ❌ the food chain, the ❌ energy loss there is so the more productive it is.

Drag and drop to complete the text.

shorter

longer

less

more

Explanation

Question 7 of 40

4

Complete this diagram of the nitrogen cycle

Drag an answer into the correct orange point.

Atmospheric Nitrogen

Nitrates

Nitrites

Ammonium

Explanation

Question 8 of 40

5

Complete this diagram of the Phosphorous Cycle

Drag an answer into the correct orange point.

Weathering

Detritus

solution

Uplifting

organic

Explanation

Question 9 of 40

4

Select from the dropdown lists to complete the text.

Complete these statements about intensive farming:
-> Economically ( beneficial, harmful )
-> ( Less, More ) waste
-> ( Reduces, Increases ) biodiversity
-> ( Increases, Decreases ) productivity
-> Takes nutrients out of soil

Explanation

Question 10 of 40

3

Select from the dropdown lists to complete the text.

The products of glycolysis are:
( 2, 3, 1 ) ATP
( 2, 3, 1 ) reduced NAD
( 2, 3, 1 ) pyruvate

Explanation

Question 11 of 40

4

Complete this flow chart for glycolysis

Drag an answer into the correct orange point.

Glucose

Hexose Biphosphate

2 x Triose Phosphate

2 x Pyruvate

Explanation

Question 12 of 40

3

Fill the blank spaces to complete the text.

The link reaction occurs in the mitochondrial . CO2 is released from pyruvate and the pyruvate is by NAD. Co enzyme A combines with the acetate to form CoA.

Explanation

Question 13 of 40

3

Complete this diagram of the Krebs Cycle

Drag an answer into the correct orange point.

Citrate

Oxaloacetate

Co A

Explanation

Question 14 of 40

1

Taxis is a response that is determined by the direction of the stimulus.

Select one of the following:

True
False

Explanation

Question 15 of 40

1

Kinesis is a plant growth movement in response to a directional stimulus.

Select one of the following:

True
False

Explanation

Question 16 of 40

2

In cell tips IAA causes cells to ❌ whereas in the root tips it ❌ elongation.

Drag and drop to complete the text.

elongate

shorten

inhibits

causes

Explanation

Question 17 of 40

2

Select from the dropdown lists to complete the text.

As pressure is applied to the Pacinian corpuscle, the shape of the membrane changes and stretch mediated ( sodium, potassium, calcium ) ion channels are opened and ( sodium, potassium, calcium ) ions to flood in.

Explanation

Question 18 of 40

4

Rod cells respond to ❌ light and many receptors share 1 neurone. They give ❌ images. Cone cells only respond to ❌ light intensities and each have their own sensory neurone. They give ❌ images.

Drag and drop to complete the text.

low

back and white

high

colour

Explanation

Question 19 of 40

6

Select from the dropdown lists to complete the text.

Heart rate is controlled by the ( autonomic, sensory, central ) nervous system. The ( sympathetic, parasympathetic ) nervous system speeds up the heart rate and the ( parasympathetic, sympathetic ) slows it down. Changes are controlled by the medulla oblongata in the ( brain, heart, pancreas ). Changes occur due to chemical (by ( chemoreceptors, baroreceptors )) and pressure changes (by ( baroreceptors, chemoreceptors ))

Explanation

Question 20 of 40

1

The all or nothing principle states that if the threshold ❌ reached then an action potential won't fire.

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isn't

is

Explanation

Question 21 of 40

2

The refractory period means that action potentials ❌ overlap and limits the frequency at which the neve impluse can be transmitted. It causes the action potential to be ❌.

Drag and drop to complete the text.

don't

do

unidirectional

bidirectional

Explanation

Question 22 of 40

2

Fill the blank spaces to complete the text.

Depolaristion occurs Schwann cells in the .

Explanation

Question 23 of 40

1

Select the incorrect statement:
During the contraction of a sarcomere,

Select one or more of the following:

I band gets smaller
The sarcomere gets smaller
The A-bands get smaller
The H zones get smaller

Explanation

Question 24 of 40

1

Slow twitch muscle fibres get their energy from aerobic respiration.

Select one of the following:

True
False

Explanation

Question 25 of 40

1

Select the statements that are true about fast twitch muscle fibres

Select one or more of the following:

Get tired quickly
Used for posture
Contract quickly
Get their energy from anaerobic respiration
Reddish colour becuase they contain lots of myoglobin

Explanation

Question 26 of 40

3

The polar bear is an ❌ so ❌ generate it's own heat from metabolic reactions. Their body temperature ❌ kept constant despite the envrioment.

Drag and drop to complete the text.

endotherm

ectotherm

will

will not

is

is not

Explanation

Question 27 of 40

3

Insulin ❌ blood glucose concentration whereas glucagon ❌ it. Deviation from the norm is detected by α and β receptors in the ❌.

Drag and drop to complete the text.

lowers

increases

islets of langerhans

hypothalamus

liver

Explanation

Question 28 of 40

4

Click on each orange point and write the correct answer.

Complete this diagram of the nephron

Explanation

Question 29 of 40

1

Fill the blank space to complete the text.

Co-dominance is when alleles are expressed in the phenotype.

Explanation

Question 30 of 40

2

Fill the blank spaces to complete the text.

Sex-linkage is when the allele that codes for a characteristic is located on a chromosome. XY individuals will express a characteristic even when it is recessive since they only have copy of it.

Explanation

Question 31 of 40

4

Select from the dropdown lists to complete the text.

Complete the statements regarding the assumptions for the Hardy-Weinberg Principle:
-> ( Large, Small ) population
-> ( No, Lots of ) immigration
-> ( No, Many ) mutations
-> ( Random, Selective ) mating

Explanation

Question 32 of 40

1

Fill the blank space to complete the text.

Speciation
Has geographical isolation which means that different alleles will be advantageous for the different populations so eventaually the 2 populations will change so much that they will become different species.

Explanation

Question 33 of 40

1

If there is a mutation in a tumour supressor gene, it will become inactivated and the cell will begin to divide uncontrolably.

Select one of the following:

True
False

Explanation

Question 34 of 40

1

A mutated proto-oncogene becomes an oncogene.

Select one of the following:

True
False

Explanation

Question 35 of 40

1

Unipotent cells can differentiate into a few different types of cell.

Select one of the following:

True
False

Explanation

Question 36 of 40

3

siRNA in ❌ is ❌ stranded and will bind to target mRNA and ❌ it so it cannot be translatd.

Drag and drop to complete the text.

plants

mammals

double

single

cut

duplicate

Explanation

Question 37 of 40

3

Select from the dropdown lists to complete the text.

Place the following statements about how the gene machine works in the correct order:
( 2, 1, 3 )) Nucleotides are added step by step in the correct order
( 1, 2, 3 )) Sequence is designed
( 3, 1, 2 )) Short sections of DNA called oligonulceotides are produced and joined together into longer DNA fragments

Explanation

Question 38 of 40

3

During the process of PCR, the sample is heated to ❌ to break the H bonds between the strands. It is then cooled to ❌ so the primers can anneal. It is heated again to ❌ so the DNA polymerase can work.

	Created by Alex Lyes over 7 years ago

A-Level Biology Quiz on AQA A2 Biology Questions, created by Alex Lyes on 14/06/2017.

AQA A2 Biology Questions

Question 1 of 40

Fill the blank space to complete the text.

Photolysis of water increases the concentration of protons in the space.

Explanation

Question 2 of 40

Fill the blank spaces to complete the text.

Rubisco catalyses the reaction of with CO2 in the Cycle.

Explanation

Question 3 of 40

Select from the dropdown lists to complete the text.

Glycerate Triose( Glycerate, Triose ) Phosphate is converted to triose glycerate( triose, glycerate ) phosphate as 1 2( 1, 2 ) ATP is converted to ADP +Pi and 1 NADPH is converted to NADP (reducing oxidising( reducing, oxidising ) the GP)

Explanation

Question 4 of 40

Biomass is the ❌ mass of ❌ material in a specific area at a specific time.

Drag and drop to complete the text.

Explanation

Question 5 of 40

How much energy moves from one organism to another?

Select one of the following:

Explanation

Question 6 of 40

The ❌ the food chain, the ❌ energy loss there is so the more productive it is.

Drag and drop to complete the text.

Explanation

Question 7 of 40

Complete this diagram of the nitrogen cycle

Drag an answer into the correct orange point.

Explanation

Question 8 of 40

Complete this diagram of the Phosphorous Cycle

Drag an answer into the correct orange point.

Explanation

Question 9 of 40

Select from the dropdown lists to complete the text.

Complete these statements about intensive farming: -> Economically beneficial harmful( beneficial, harmful ) -> Less More( Less, More ) waste -> Reduces Increases( Reduces, Increases ) biodiversity -> Increases Decreases( Increases, Decreases ) productivity -> Takes nutrients out of soil

Explanation

Question 10 of 40

Select from the dropdown lists to complete the text.

The products of glycolysis are: 2 3 1( 2, 3, 1 ) ATP 2 3 1( 2, 3, 1 ) reduced NAD 2 3 1( 2, 3, 1 ) pyruvate

Explanation

Question 11 of 40

Complete this flow chart for glycolysis

Drag an answer into the correct orange point.

Explanation

Question 12 of 40

Fill the blank spaces to complete the text.

The link reaction occurs in the mitochondrial . CO2 is released from pyruvate and the pyruvate is by NAD. Co enzyme A combines with the acetate to form CoA.

Explanation

Question 13 of 40

Complete this diagram of the Krebs Cycle

Drag an answer into the correct orange point.

Explanation

Question 14 of 40

Taxis is a response that is determined by the direction of the stimulus.

Select one of the following:

Explanation

Question 15 of 40

Kinesis is a plant growth movement in response to a directional stimulus.

Select one of the following:

Explanation

Question 16 of 40

In cell tips IAA causes cells to ❌ whereas in the root tips it ❌ elongation.

Drag and drop to complete the text.

Explanation

Question 17 of 40

Select from the dropdown lists to complete the text.

As pressure is applied to the Pacinian corpuscle, the shape of the membrane changes and stretch mediated sodium potassium calcium( sodium, potassium, calcium ) ion channels are opened and sodium potassium calcium( sodium, potassium, calcium ) ions to flood in.

Explanation

Question 18 of 40

Rod cells respond to ❌ light and many receptors share 1 neurone. They give ❌ images. Cone cells only respond to ❌ light intensities and each have their own sensory neurone. They give ❌ images.

Drag and drop to complete the text.

Explanation

Question 19 of 40

Select from the dropdown lists to complete the text.

Explanation

Question 20 of 40

The all or nothing principle states that if the threshold ❌ reached then an action potential won't fire.

Drag and drop to complete the text.

( Glycerate, Triose ) Phosphate is converted to ( triose, glycerate ) phosphate as ( 1, 2 ) ATP is converted to ADP +Pi and 1 NADPH is converted to NADP (( reducing, oxidising ) the GP)

Complete these statements about intensive farming:
-> Economically ( beneficial, harmful )
-> ( Less, More ) waste
-> ( Reduces, Increases ) biodiversity
-> ( Increases, Decreases ) productivity
-> Takes nutrients out of soil

The products of glycolysis are:
( 2, 3, 1 ) ATP
( 2, 3, 1 ) reduced NAD
( 2, 3, 1 ) pyruvate

As pressure is applied to the Pacinian corpuscle, the shape of the membrane changes and stretch mediated ( sodium, potassium, calcium ) ion channels are opened and ( sodium, potassium, calcium ) ions to flood in.

Select the incorrect statement:
During the contraction of a sarcomere,

Complete the statements regarding the assumptions for the Hardy-Weinberg Principle:
-> ( Large, Small ) population
-> ( No, Lots of ) immigration
-> ( No, Many ) mutations
-> ( Random, Selective ) mating

Speciation
Has geographical isolation which means that different alleles will be advantageous for the different populations so eventaually the 2 populations will change so much that they will become different species.