AQA A2 Biology Questions

Pregunta 1 de 40

1

Rellena el espacio en blanco para completar el texto.

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

Explicación

Pregunta 2 de 40

2

Rellena los espacios en blanco para completar el texto.

Rubisco catalyses the reaction of with CO2 in the Cycle.

Explicación

Pregunta 3 de 40

4

Selecciona la opción correcta de los menús desplegables para completar el texto.

( 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)

Explicación

Pregunta 4 de 40

2

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

Arrastra y suelta para completar el texto.

total

incomplete

living

dead

Explicación

Pregunta 5 de 40

1

How much energy moves from one organism to another?

Selecciona una de las siguientes respuestas posibles:

10%
100%
50%
40%

Explicación

Pregunta 6 de 40

2

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

Arrastra y suelta para completar el texto.

shorter

longer

less

more

Explicación

Pregunta 7 de 40

4

Complete this diagram of the nitrogen cycle

Arrastra la opción correcta a cada uno de los puntos naranjas

Atmospheric Nitrogen

Nitrates

Nitrites

Ammonium

Explicación

Pregunta 8 de 40

5

Complete this diagram of the Phosphorous Cycle

Arrastra la opción correcta a cada uno de los puntos naranjas

Weathering

Detritus

solution

Uplifting

organic

Explicación

Pregunta 9 de 40

4

Selecciona la opción correcta de los menús desplegables para completar el texto.

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

Explicación

Pregunta 10 de 40

3

Selecciona la opción correcta de los menús desplegables para completar el texto.

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

Explicación

Pregunta 11 de 40

4

Complete this flow chart for glycolysis

Arrastra la opción correcta a cada uno de los puntos naranjas

Glucose

Hexose Biphosphate

2 x Triose Phosphate

2 x Pyruvate

Explicación

Pregunta 12 de 40

3

Rellena los espacios en blanco para completar el texto.

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.

Explicación

Pregunta 13 de 40

3

Complete this diagram of the Krebs Cycle

Arrastra la opción correcta a cada uno de los puntos naranjas

Citrate

Oxaloacetate

Co A

Explicación

Pregunta 14 de 40

1

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

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 15 de 40

1

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

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 16 de 40

2

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

Arrastra y suelta para completar el texto.

elongate

shorten

inhibits

causes

Explicación

Pregunta 17 de 40

2

Selecciona la opción correcta de los menús desplegables para completar el texto.

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.

Explicación

Pregunta 18 de 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.

Arrastra y suelta para completar el texto.

low

back and white

high

colour

Explicación

Pregunta 19 de 40

6

Selecciona la opción correcta de los menús desplegables para completar el texto.

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 ))

Explicación

Pregunta 20 de 40

1

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

Arrastra y suelta para completar el texto.

isn't

is

Explicación

Pregunta 21 de 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 ❌.

Arrastra y suelta para completar el texto.

don't

do

unidirectional

bidirectional

Explicación

Pregunta 22 de 40

2

Rellena los espacios en blanco para completar el texto.

Depolaristion occurs Schwann cells in the .

Explicación

Pregunta 23 de 40

1

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

Selecciona una o más de las siguientes respuestas posibles:

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

Explicación

Pregunta 24 de 40

1

Slow twitch muscle fibres get their energy from aerobic respiration.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 25 de 40

1

Select the statements that are true about fast twitch muscle fibres

Selecciona una o más de las siguientes respuestas posibles:

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

Explicación

Pregunta 26 de 40

3

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

Arrastra y suelta para completar el texto.

endotherm

ectotherm

will

will not

is

is not

Explicación

Pregunta 27 de 40

3

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

Arrastra y suelta para completar el texto.

lowers

increases

islets of langerhans

hypothalamus

liver

Explicación

Pregunta 28 de 40

4

Haz click en el punto naranja y escribe la respuesta

Complete this diagram of the nephron

Explicación

Pregunta 29 de 40

1

Rellena el espacio en blanco para completar el texto.

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

Explicación

Pregunta 30 de 40

2

Rellena los espacios en blanco para completar el texto.

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.

Explicación

Pregunta 31 de 40

4

Selecciona la opción correcta de los menús desplegables para completar el texto.

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

Explicación

Pregunta 32 de 40

1

Rellena el espacio en blanco para completar el texto.

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.

Explicación

Pregunta 33 de 40

1

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

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 34 de 40

1

A mutated proto-oncogene becomes an oncogene.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 35 de 40

1

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

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 36 de 40

3

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

Arrastra y suelta para completar el texto.

plants

mammals

double

single

cut

duplicate

Explicación

Pregunta 37 de 40

3

Selecciona la opción correcta de los menús desplegables para completar el texto.

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

Explicación

Pregunta 38 de 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.

	Creado por Alex Lyes hace alrededor de 7 años

A-Level Biology Test sobre AQA A2 Biology Questions, creado por Alex Lyes el 14/06/2017.

AQA A2 Biology Questions

Pregunta 1 de 40

Rellena el espacio en blanco para completar el texto.

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

Explicación

Pregunta 2 de 40

Rellena los espacios en blanco para completar el texto.

Rubisco catalyses the reaction of with CO2 in the Cycle.

Explicación

Pregunta 3 de 40

Selecciona la opción correcta de los menús desplegables para completar el texto.

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)

Explicación

Pregunta 4 de 40

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

Arrastra y suelta para completar el texto.

Explicación

Pregunta 5 de 40

How much energy moves from one organism to another?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 6 de 40

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

Arrastra y suelta para completar el texto.

Explicación

Pregunta 7 de 40

Complete this diagram of the nitrogen cycle

Arrastra la opción correcta a cada uno de los puntos naranjas

Explicación

Pregunta 8 de 40

Complete this diagram of the Phosphorous Cycle

Arrastra la opción correcta a cada uno de los puntos naranjas

Explicación

Pregunta 9 de 40

Selecciona la opción correcta de los menús desplegables para completar el texto.

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

Explicación

Pregunta 10 de 40

Selecciona la opción correcta de los menús desplegables para completar el texto.

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

Explicación

Pregunta 11 de 40

Complete this flow chart for glycolysis

Arrastra la opción correcta a cada uno de los puntos naranjas

Explicación

Pregunta 12 de 40

Rellena los espacios en blanco para completar el texto.

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.

Explicación

Pregunta 13 de 40

Complete this diagram of the Krebs Cycle

Arrastra la opción correcta a cada uno de los puntos naranjas

Explicación

Pregunta 14 de 40

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

Selecciona uno de los siguientes:

Explicación

Pregunta 15 de 40

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

Selecciona uno de los siguientes:

Explicación

Pregunta 16 de 40

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

Arrastra y suelta para completar el texto.

Explicación

Pregunta 17 de 40

Selecciona la opción correcta de los menús desplegables para completar el texto.

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.

Explicación

Pregunta 18 de 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.

Arrastra y suelta para completar el texto.

Explicación

Pregunta 19 de 40

Selecciona la opción correcta de los menús desplegables para completar el texto.

Explicación

Pregunta 20 de 40

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

Arrastra y suelta para completar el texto.

( 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.