Test
AQA A2 Biology Questions
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (40)
1Photolysis of water increases the concentration of protons in the [blank_start]thylakoid[blank_end] space.
- Athylakoid
2Rubisco catalyses the reaction of [blank_start]RuBP[blank_end] with CO2 in the [blank_start]Calvin[blank_end] Cycle.
- ARuBP
- BCalvin
3[blank_start]Glycerate[blank_end] Phosphate is converted to [blank_start]triose[blank_end] phosphate as [blank_start]1[blank_end] ATP is converted to ADP +Pi and 1 NADPH is converted to NADP ([blank_start]reducing[blank_end] the GP)
- A1
- B2
- Ctriose
- Dglycerate
- EGlycerate
- FTriose
- Greducing
- Hoxidising
4Biomass is the [blank_start]total[blank_end] mass of [blank_start]living[blank_end] material in a specific area at a specific time.
- Atotal
- Bincomplete
- Cliving
- Ddead
5How much energy moves from one organism to another?
- A10%
- B100%
- C50%
- D40%
6The [blank_start]shorter[blank_end] the food chain, the [blank_start]less[blank_end] energy loss there is so the more productive it is.
- Ashorter
- Blonger
- Cless
- Dmore
7Complete this diagram of the nitrogen cycle
- AAtmospheric Nitrogen
- BNitrates
- CNitrites
- DAmmonium
8Complete this diagram of the Phosphorous Cycle
- AWeathering
- BDetritus
- Csolution
- DUplifting
- Eorganic
9Complete these statements about intensive farming:
-> Economically [blank_start]beneficial[blank_end]
-> [blank_start]Less[blank_end] waste
-> [blank_start]Reduces[blank_end] biodiversity
-> [blank_start]Increases[blank_end] productivity
-> Takes nutrients out of soil- Abeneficial
- Bharmful
- CLess
- DMore
- EReduces
- FIncreases
- GIncreases
- HDecreases
10The products of glycolysis are:
[blank_start]2[blank_end] ATP
[blank_start]2[blank_end] reduced NAD
[blank_start]2[blank_end] pyruvate- A2
- B3
- C1
- D2
- E3
- F1
- G2
- H3
- I1
11Complete this flow chart for glycolysis
- AGlucose
- BHexose Biphosphate
- C2 x Triose Phosphate
- D2 x Pyruvate
12The link reaction occurs in the mitochondrial [blank_start]matrix[blank_end]. CO2 is released from pyruvate and the pyruvate is [blank_start]reduced[blank_end] by NAD. Co enzyme A combines with the acetate to form [blank_start]acetyl[blank_end] CoA.
- Amatrix
- Boxidised
- Cacetyl
13Complete this diagram of the Krebs Cycle
- ACitrate
- BOxaloacetate
- CCo A
14Taxis is a response that is determined by the direction of the stimulus.
- AVerdadero
- BFalso
15Kinesis is a plant growth movement in response to a directional stimulus.
- AVerdadero
- BFalso
16In cell tips IAA causes cells to [blank_start]elongate[blank_end] whereas in the root tips it [blank_start]inhibits[blank_end] elongation.
- Aelongate
- Bshorten
- Cinhibits
- Dcauses
17As pressure is applied to the Pacinian corpuscle, the shape of the membrane changes and stretch mediated [blank_start]sodium[blank_end] ion channels are opened and [blank_start]sodium[blank_end] ions to flood in.
- Asodium
- Bpotassium
- Ccalcium
- Dsodium
- Epotassium
- Fcalcium
18Rod cells respond to [blank_start]low[blank_end] light and many receptors share 1 neurone. They give [blank_start]back and white[blank_end] images. Cone cells only respond to [blank_start]high[blank_end] light intensities and each have their own sensory neurone. They give [blank_start]colour[blank_end] images.
- Alow
- Bback and white
- Chigh
- Dcolour
19Heart rate is controlled by the [blank_start]autonomic[blank_end] nervous system. The [blank_start]sympathetic[blank_end] nervous system speeds up the heart rate and the [blank_start]parasympathetic[blank_end] slows it down. Changes are controlled by the medulla oblongata in the [blank_start]brain[blank_end]. Changes occur due to chemical (by [blank_start]chemoreceptors[blank_end]) and pressure changes (by [blank_start]baroreceptors[blank_end])
- Aautonomic
- Bsensory
- Ccentral
- Dsympathetic
- Eparasympathetic
- Fparasympathetic
- Gsympathetic
- Hbrain
- Iheart
- Jpancreas
- Kchemoreceptors
- Lbaroreceptors
- Mbaroreceptors
- Nchemoreceptors
20The all or nothing principle states that if the threshold [blank_start]isn't[blank_end] reached then an action potential won't fire.
- Aisn't
- Bis
21The refractory period means that action potentials [blank_start]don't[blank_end] overlap and limits the frequency at which the neve impluse can be transmitted. It causes the action potential to be [blank_start]unidirectional[blank_end].
- Adon't
- Bdo
- Cunidirectional
- Dbidirectional
22Depolaristion occurs [blank_start]between[blank_end] Schwann cells in the [blank_start]nodes of Ranvier[blank_end].
- Abetween
- Bnodes of Ranvier
23Select the incorrect statement:
During the contraction of a sarcomere,
- AI band gets smaller
- BThe sarcomere gets smaller
- CThe A-bands get smaller
- DThe H zones get smaller
24Slow twitch muscle fibres get their energy from aerobic respiration.
- AVerdadero
- BFalso
25Select the statements that are true about fast twitch muscle fibres
- AGet tired quickly
- BUsed for posture
- CContract quickly
- DGet their energy from anaerobic respiration
- EReddish colour becuase they contain lots of myoglobin
26The polar bear is an [blank_start]endotherm[blank_end] so [blank_start]will[blank_end] generate it's own heat from metabolic reactions. Their body temperature [blank_start]is[blank_end] kept constant despite the envrioment.
- Aendotherm
- Bectotherm
- Cwill
- Dwill not
- Eis
- Fis not
27Insulin [blank_start]lowers[blank_end] blood glucose concentration whereas glucagon [blank_start]increases[blank_end] it. Deviation from the norm is detected by α and β receptors in the [blank_start]islets of langerhans[blank_end].
- Alowers
- Bincreases
- Cislets of langerhans
- Dhypothalamus
- Eliver
28Complete this diagram of the nephron
- ABowman's capsule
- BProximal
- CDistal
- DCollecting duct
29Co-dominance is when [blank_start]both[blank_end] alleles are expressed in the phenotype.
- Aboth
30Sex-linkage is when the allele that codes for a characteristic is located on a [blank_start]sex[blank_end] chromosome. XY individuals will express a characteristic even when it is recessive since they only have [blank_start]1[blank_end] copy of it.
- Asex
- B1
31Complete the statements regarding the assumptions for the Hardy-Weinberg Principle:
-> [blank_start]Large[blank_end] population
-> [blank_start]No[blank_end] immigration
-> [blank_start]No[blank_end] mutations
-> [blank_start]Random[blank_end] mating- ALarge
- BSmall
- CNo
- DLots of
- ENo
- FMany
- GRandom
- HSelective
32[blank_start]Allopatric[blank_end] 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.- AAllopatric
33If there is a mutation in a tumour supressor gene, it will become inactivated and the cell will begin to divide uncontrolably.
- AVerdadero
- BFalso
34A mutated proto-oncogene becomes an oncogene.
- AVerdadero
- BFalso
35Unipotent cells can differentiate into a few different types of cell.
- AVerdadero
- BFalso
36siRNA in [blank_start]plants[blank_end] is [blank_start]double[blank_end] stranded and will bind to target mRNA and [blank_start]cut[blank_end] it so it cannot be translatd.
- Aplants
- Bmammals
- Cdouble
- Dsingle
- Ecut
- Fduplicate
37Place the following statements about how the gene machine works in the correct order:
[blank_start]2[blank_end]) Nucleotides are added step by step in the correct order
[blank_start]1[blank_end]) Sequence is designed
[blank_start]3[blank_end]) Short sections of DNA called oligonulceotides are produced and joined together into longer DNA fragments- A2
- B1
- C3
- D1
- E2
- F3
- G3
- H1
- I2
38During the process of PCR, the sample is heated to [blank_start]95°C[blank_end] to break the H bonds between the strands. It is then cooled to [blank_start]55°C[blank_end] so the primers can anneal. It is heated again to [blank_start]72°C[blank_end] so the DNA polymerase can work.
- A95°C
- B55°C
- C72°C
39A VNTR is a V[blank_start]ariable[blank_end] N[blank_start]umber[blank_end] T[blank_start]andem[blank_end] R[blank_start]epeat[blank_end]
- Aariable
- Bumber
- Candem
- Depeat
40During genetic fingerprinting, the shorter fragments move the least.
- AVerdadero
- BFalso
Información
- Descripción
- A-Level Biology Test sobre AQA A2 Biology Questions, creado por Alex Lyes el 14/06/2017.
- Autor
- Alex Lyes
- Idioma
- English
- Visitas
- 128
- Etiquetas
- Valoración
- Aún sin valoraciones Valora este test