corleycentre.co.ukcorleycentre.co.uk/.../6.-GCSE-Biology-Paper-1...Exam-Style-Que… · Web viewPaper 1 Exam Style Questions (B1, B2, B3 & B4) Q1. Living organisms are made of cells

Paper 1 Exam Style Questions (B1, B2, B3 & B4)

Q1.Living organisms are made of cells.

(a) Animal and plant cells have several parts. Each part has a different function.

Draw one line from each cell part to the correct function of that part.

(3)

(b) The diagram below shows a cell from a plant leaf.

Which two parts in the diagram above are not found in an animal cell?

1. _________________________________________________________________

2. _________________________________________________________________(2)

(Total 5 marks)

Q2.The photograph shows some cells in the root of an onion plant.


By UAF Center for Distance Education [CC BY 2.0], via Flickr

(a) Cells X and Y have just been produced by cell division.

(i) Name the type of cell division that produced cells X and Y.

______________________________________________________________(1)

(ii) What happens to the genetic material before the cell divides?

______________________________________________________________(1)

(b) A gardener wanted to produce a new variety of onion.

Explain why sexual reproduction could produce a new variety of onion.

___________________________________________________________________

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___________________________________________________________________(3)

(Total 5 marks)

Q3.(a) The diagrams show cells containing and surrounded by oxygen molecules.

Oxygen can move into cells or out of cells.


Into which cell, A, B, C or D, will oxygen move the fastest?

Write your answer, A, B, C or D, in the box. (1)

(b) Draw a ring around the correct word to complete each sentence.

(i) Oxygen is taken into cells by the process of

diffusion

osmosis

respiration

.

(1)

(ii) Cells need oxygen for

breathing

photosynthesis

respiration

.

(1)

(iii) The parts of cells that use up the most oxygen are the

membranes

mitochondria

nuclei

.

(1)


(iv) Some cells produce oxygen in the process of

diffusion

photosynthesis

respiration

.

(1)(Total 5 marks)

Q4.(a) The graph shows the effect of pH on the activities of three enzymes, X, Y and Z.

These enzymes help to digest food in the human digestive system.Each enzyme is produced by a different part of the digestive system.

pH

(i) What is the optimum (best) pH for the action of enzyme Z?

__________________(1)

(ii) The stomach makes a substance that gives the correct pH for enzyme action in the human stomach.

Name this substance. ____________________________________________(1)

(iii) Which enzyme, X, Y or Z, will work best in the human stomach?

__________________(1)

(b) In this question you will be assessed on using good English, organising information clearly and using specialist terms where appropriate.

Different parts of the human digestive system help to break down molecules of fat so that they can be absorbed into the body.


Describe how.

To gain full marks you should refer to:

• the enzyme and where the enzyme is produced

• the products of digestion

• any other chemicals involved.

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___________________________________________________________________(6)

(Total 9 marks)

Q5.The circulatory system contains arteries and veins.

(a) (i) Describe how the structure of an artery is different from the structure of a vein.

______________________________________________________________

______________________________________________________________

______________________________________________________________

______________________________________________________________


(2)

(ii) A comparison is made between blood taken from an artery in the leg and blood taken from a vein in the leg.

Give two differences in the composition of the blood.

1. ____________________________________________________________

______________________________________________________________

2. ____________________________________________________________

______________________________________________________________(2)

(b) During operations patients can lose a lot of blood. Patients often need blood transfusions to keep them alive.

The text shows information about a new artificial blood product.

Suggest two possible advantages of using the new artificial blood, instead of using human blood for a transfusion in humans.

1. _________________________________________________________________

___________________________________________________________________

2. _________________________________________________________________

___________________________________________________________________(2)

(Total 6 marks)

Q6.Microorganisms can cause disease.

(a) Draw one line from each disease to the correct description.


(3)

(b) Gonorrhoea is a sexually transmitted disease.

A bacterium causes gonorrhoea.

What are the symptoms of gonorrhoea?

Tick two boxes.

Headache

Pain when urinating

Rash

Vomiting

Yellow discharge

(2)

(c) The table below shows the number of people in the UK diagnosed with gonorrhoea in different years.

Number of people diagnosed

with gonorrhoea in thousands


Year Female Male

2005 5.0 12.5

2007 5.0 12.5

2009 5.5 12.0

2011 6.0 14.0

2013 7.5 22.0

Use the data in the table to complete the graph below.

• The numbers for males have already been plotted.

• Only some of the numbers for females have been plotted.

(3)

(d) Describe the patterns in the numbers of males and females with gonorrhoea from 2005 to 2013.

Use the data in the graph.

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________


___________________________________________________________________(3)

(e) Gonorrhoea is treated with an antibiotic.

HIV is another sexually transmitted disease.

Explain why prescribing an antibiotic will not cure HIV.

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________(2)

(Total 13 marks)

Q7.(i) Give two ways in which white blood cells protect us from disease.

1. _________________________________________________________________

___________________________________________________________________

2. _________________________________________________________________

___________________________________________________________________(2)

(ii) Explain, as fully as you can, how immunisation protects us from disease.

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________(3)

(Total 5 marks)

Q8.In this question you will be assessed on using good English, organising information clearly and using specialist terms where appropriate.

Light intensity, carbon dioxide concentration and temperature are three factors that affect the rate of photosynthesis.

How would you investigate the effect of light intensity on the rate of photosynthesis?


The image below shows some of the apparatus you might use.

You should include details of:

• how you would set up the apparatus and the materials you would use

• the measurements you would make

• how you could make this a fair test.

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_______________________________________________________________________(Total 6 marks)


Mark schemes

Q1.

(a) extra lines cancel

3

(b) Cell wallin either order

1

Chloroplastallow (permanent) vacuole

1[5]

Q2.(a) (i) mitosis

correct spelling only1

(ii) replicates / doubles / is copied / duplicatesaccept clonedignore multiplied / reproduced

1

(b) fertilisation occurs / fusion (of gametes) accept converse for asexual, eg none in asexual / just division in asexual

1

so leading to mixing of genetic information / genes / DNA / chromosomesgenes / DNA / chromosomes / genetic information comes from 1 parent in asexualignore characteristics

1


one copy (of each allele / gene / chromosome) from each parentorgametes produced by meiosisormeiosis causes variation

meiosis must be spelt correctly1

[5]

Q3.(a) A

1

(b) (i) diffusion1

(ii) respiration1

(iii) mitochondria1

(iv) photosynthesis1

[5]

Q4.(a) (i) 8.6

accept value in range 8.5 to 8.71

(ii) hydrochloric acid / HClaccept HCLaccept hydrogen chlorideignore hcl / etc.

1

(iii) X1

(b) Marks awarded for this answer will be determined by the Quality of Written Communication (QWC) as well as the standard of the scientific response. Examiners should also refer to the information in the Marking guidance.

0 marksNo relevant content.

Level 1 (1-2 marks)There is a simple description of part of a process or a reference to at least one of: mechanical digestion, lipase, product of enzyme action, bile, site of production or site of digestion

Level 2 (3-4 marks)There is a description of at least one process linking ideas

Level 3 (5-6 marks)


There is a clear description of the process including reference to the majority of: mechanical digestion, lipase, bile, where they are produced, products, function of bile and site of digestion / absorption

Examples of biological points made in the response:

• mechanical breakdown in mouth / stomach

• fats →fatty acids and / or glycerol

• by lipase

• (produced by) pancreas

• and small intestine

• fat digestion occurs in small intestine

• bile

• produced by liver

• neutralises acid from stomach

• produces alkaline conditions in intestine

• refs. to increased surface area related to emulsification or chewing

• products are small molecules / water-soluble

• products absorbed by small intestine6

[9]

Q5.(a) (i) doesn’t have valves

allow veins have valves1

has a thicker wall or thicker layer of muscleallow has a smaller lumenignore references to elastic (in walls)

1

(ii) any two from:• (artery has) more oxygen• (artery has) more glucose

allow (artery has) more amino acids / fatty acids• (artery has) less carbon dioxide• (artery has) less lactic acid

ignore ureaignore reference to pressureaccept converse for veins if veins is clearly stated

2

(b) any two from:• no rejection


allow no tissue matching required• abundant supply• low risk of infection

allow named example ie HIV, CJD• longer shelf life

allow less space needed for storageignore side effects

2[6]

Q6.(a)

each extra line negates a mark

4

(b) pain when urinating1

yellow discharge1

(c) three correct plotsallow 1 mark for two correct plots

2

correctly drawn line1

(d) any three from:• (fairly) level / steady up to 2009

allow numbers of males fall (slightly) and females rise (slightly) up to 2009

• (there is a) rise after 2009• males are (always) higher than females• males rising faster than females

allow overall increase (from 2005 to 2013)3


(e) HIV is a virus1

(and) antibiotics are only effective against bacteriaorantibiotics do not kill viruses

allow viruses live inside cells1

[13]

Q7.(i) 2 of:

ingest microbes; )allow higher level answersproduce antibodies; )allow cause and effectproduce antitoxins )eg antitoxins neutralise poisons = 2

each for 1 mark2

(ii) injection of dead/weak microbes; stimulates antibody production;these can be produced again quickly on new infectionor remain for long time to ‘combat’ new infection

each for 1 mark3

[5]

Q8.Marks awarded for this answer will be determined by the Quality of Written Communication (QWC) as well as the standard of the scientific response. Examiners should also apply a ‘best-fit’ approach to the marking.

Level 3 (5–6 marks):A description of how the apparatus is used to measure the rate of photosynthesis at different light intensities is given.

For full marks reference must be made to a control variableorrepeats

Level 2 (3–4 marks):A description of how the apparatus is set upanda description of how photosynthesis can be measured.ora description of how light intensity is variedora control variable or any other relevant point

Level 1 (1–2 marks):A partial description of how the apparatus is set upora description of how light is suppliedora simple description of how photosynthesis can be measured.or


a control variable

0 marks:No relevant content.

examples of the points made in the response:• apparatus set up:

– weed in water in beaker– light shining on beaker

• method of varying the light intensity–eg changing distance of lamp from plant• method of controlling other variables

– use same pond weed or same length of pond weed– temperature: water bath or heat screen– CO2

• leave sufficient time at each new light intensity before measurements taken• method of measuring photosynthesis – eg counting bubbles of gas released or

collecting gas and measuring volume in a syringe• measuring rate of photosynthesis by counting bubbles for set period of time• repetitions

extra information:allow information in the form of a diagram

[6]

Documents

corleycentre.co.ukcorleycentre.co.uk/.../6.-GCSE-Biology-Paper-1...Exam-Style-Que… · Web viewPaper 1 Exam Style Questions (B1, B2, B3 & B4) Q1. Living organisms are made of cells