Biology Year 13 Random Retrieval

This quiz contains all the questions in the year 13 biology section. The website will pick 20 questions at random.

1 / 20

If we cut out a human gene using restriction enzymes and ligate it into a plasmid using ligase, then that plasmid is now 'Recombinant'. What do we call the process of putting the recombinant plasmid into bacteria?

Transcription

Translation

Transition

Transformation

2 / 20

Cardiomyocytes are an example of what type of stem cell?

Totipotent

Pluripotent

Multipotent

Unipotent

3 / 20

What is the oestrogen receptor called when the oestrogen has bound?

Oestrogen Oestrogen Receptor

Oestrogen Bound Receptor

Oestrogen Substrate Bound Receptor

Oestrogen Activator

4 / 20

TTA = Leu TTG = Leu TTC = Phe TCA = Ser TAA = Stop Here is the original sequence : TTCTTGTTATCATAA. Here is a mutated sequence: TTCTTGTTATAACATAA.

What type of mutation has occurred?

Substitution

Addition

Deletion

Inversion

5 / 20

How many samples should you take to get reliable data?

10% of the area.

Until the running mean stays the same.

5 each.

Until you get bored.

6 / 20

Which of the following is a cause of variation?

Mitosis

Binary Fission

Mutation

Asexual Reproduction

7 / 20

In peppered moths, having light coloured wings is dominant. In Sheffield (an industrial northern town in the UK) a sample of moths was taken. The numbers collected were 73 light coloured , and 326 dark coloured. What is the allele frequency ( as a decimal) of the light allele in the population?

0.38

0.82

0.901

0.099

8 / 20

In this image,' A' is the dominant epistatic allele

In this image, 'a' is the dominant epistatic allele

In this image, 'B' is the dominant epistatic allele

In this image 'b' is the dominant epistatic allel

9 / 20

The image above shows a muscle fibre. What is the function of organelle E?

Generation of ATP

Transmission of an action potential to all fibrils.

Storage and release of calcium ions.

10 / 20

Doctors investigated two ways of measuring the effect of general anaesthetics. In one method they timed how long it took to stop blinking, and then repeated the investigation using a machine to record when brain activity showed they were unconscious. Blinking involves cholinergic synapses. Anaesthetic S is a similar shape to acetylcholine. Suggest how anaesthetic S stops the transmission across the synapse.

S acts as an agonist

S acts as an antagonist

S inhibits the enzymes that break down acetylcholine

11 / 20

True or False - Axons with a narrower diameter have a faster speed of conduction.

TRUE

FALSE

12 / 20

Which word best describes the charge distribution across a resting axon plasma membrane?

Polarised

Depolarised

Hyperpolarised

13 / 20

Denitrifying bacteria use nitrates in the soil to carry out respiration and produce nitrogen gas. Are the vast majority aerobic or anaerobic?

Aerobic

Anaerobic

14 / 20

Is this the correct equation for anaerobic respiration in animal cells? : Glucose → Carbon Dioxide + Lactic Acid

Yes

No

15 / 20

What is passed along the 4 protein complexes - represented by 'W' on the diagram?

Protons

Electrons

H⁺

16 / 20

How many molecules of H are required to produce one molecule of glucose?

6

12

24

17 / 20

What does substance H do to substance B?

Oxidises

Reduces

Phosphorylates

18 / 20

How many carbon atoms are there in ONE molecule of substance B?

6

5

3

19 / 20

Name substance D

Carbon Dioxide

Ribulose bisphosphate

Hexose sugar

20 / 20

The splitting of water at PSII creates molecules A & B, what do A and B represent?

2H⁺ & 2 e^-

2H⁺ & O₂

2H⁺ & 1/2 O₂

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