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Biology paper 1

Total questions: 87

Worksheet time: 48mins

Name
Class
Date
1.
Which of the following best describes meiosis?
a)
It is carried out in all tissues that require cell replacement. 
b)
It occurs only in cells in the reproductive structures of organisms. 
c)
It happens in all tissues except the brain and spinal cord
d)
It is the first stage of mitosis 
2.
Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an even that results from mitosis but not meiosis? 
a)
Two stages of cell division 
b)
Replication of cellular genetic material 
c)
Daughter cells that are identical to the parent cell
d)
Four daughter cells that are produced from each parent cell. 
3.
Place these cells in order of mitosis.
a)
A, B, C, D, E
b)
B, E, D, A, C
c)
C, E, A, D, B
d)
B, D, A, E, C
4.

Which part of the digestive system had a low pH to help the enzymes with low optimum pH level

a)

Mouth

b)

Large Intesine

c)

Small Intestine

d)

Stomach

5.

What does Bile do in digestion?

a)

Protects the cells in the stomach lining from the acid inside it.

b)

Allows the lock and key model of the enzymes to work more efficently.

c)

Creates better conditions for good bacteria to grow in digestive system.

d)

Emulsifies (break down) fats.

6.

The reagents for testing for the following food; Fats, Sugars, Proteins, Starch

a)

Ethanol, Benedict's, Biuret, Iodine

b)

Benedict's, Biuret, Iodine, Ethanol

c)

Biuret, Iodine, Benedict's, Ethanol

d)

Iodine, Benedict's, Ethanol, Biuret

7.

The Valves in the heart and veins prevent ________.

a)

Forward Flow

b)

Cardiac Flow

c)

Lateral Flow

d)

Back Flow

8.

Why are human cardiac systems referred to as 'Double Circulatory Systems'?

a)

The heartrate can be doubled to pump more blood around the body when exercising.

b)

There are two 'dubs' (dub-dub) in one heart beat.

c)

The blood moves through the heart twice to be pressurized twice.

d)

Becasue there are two different kinds of blood vessels that are attached to the heart (arteries and veins).

9.

Why do arteries have very thick and elastic walls.

a)

The protect the blood inside.

b)

To prevent coronary heart disease,

c)

So substance like oxygen can't move through the walls.

d)

To withstand the large amount of pressure in the blood they carry.

10.

What treatment for Coronary Heart Disease does this picture show?

a)

Stent

b)

Statin

c)

Heart Transplant

d)

By-Pass

11.

The graph shows the effect of the concentration of carbon dioxide on the rate of photosynthesis in tomato plants at 20 °C.


Question

What is the maximum rate of photosynthesis of the tomato plants shown in the graph?

(a)  

12.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
13.
When it is chilly and raining outside, there is no photosynthesis taking place. What is the limiting factor?
a)
Temperature
b)
Rainfall
c)
Carbon Dioxide
14.
Which of these will not affect photosynthesis?
a)
Light
b)
Temperature
c)
Glucose Availability
d)
Carbon Dioxide
15.

Which lettered graph represents the affect of light intensity on photosynthetic rate?

a)

A

b)

B

c)

C

d)

D

16.

What are the levels of living organisms from smallest to largest?

a)

Tissue - Organ Systems - Cells - Organs - Organism

b)

Cells - Tissue - Organs - Organ Systems - Organisms

c)

Organs - Organ Systems - Organisms - Cells - Tissue

d)

Cells - Tissue - Organisms - Organ Systems - Organs

17.

What part of the heart has been replaced in the picture?

a)

Atrium

b)

Ventricle

c)

Valve

d)

Septum

18.

What are parts A and B

a)

A. Stomata B. Guard Cell

b)

A. Guard Cell B. Stomata

c)

A. Palisade B. Spongy Mesophyl Cell

d)

A. Spongy Mesophyl Cell B. Palisade

19.

The Xylem vessels transport what around the plant?

a)

Water

b)

Amino Acids

c)

Sugar

d)

Minerals

20.

Cancer is a disease of ______

a)

Uncontrolled cell growth

b)

The slowing of the nervous system

c)

Genetic destruction

d)

Reducing the immune system

21.

Where does the energy for photosynthesis come from?

a)

Sunlight

b)

The ground

c)

Sugars the plant makes

d)

Carbon dioxide in the air

22.

What gas is produced during photosynthesis?

a)

Oxygen

b)

Carbon dioxide

c)

Glucose

d)

Nitrogen

23.

What is the best definition of photosynthesis?

a)

Using light to make proteins

b)

Using light energy to make starch

c)

Using light energy to make glucose

d)

Using light energy to make food.

24.

What is anaerobic respiration?

a)

Respiration without any/much oxygen

b)

Respiration with oxygen

c)

Respiration using carbon dioxide

25.

What is aerobic respiration?

a)

Respiration with oxygen

b)

Respiration without oxygen

c)

Respiration with carbon dioxide

d)

Respiration without carbon dioxide

26.

Which type of respiration produces the most energy?

a)

Aerobic

b)

Anaerobic

c)

They both produce the same

d)

Photosynthesis

27.

During exercise, which bodily process increase?

a)

The heart rate & the breathing rate

b)

The rate of digestion, the heart rate & the breathing rate

c)

The heart rate only

28.

What is oxygen debt?

a)

The extra oxygen required after exercise to react with the lactic acid.

b)

The extra oxygen required before exercise to react with the lactic acid.

c)

The extra oxygen required during exercise to react with the glucose.

d)

The extra oxygen required after exercise to react with the glucose.

29.
What is the best definition of metabolism?
a)
A The rate at which chemical reactions occur in cells and the body
b)
B The rate at which digestion occurs
c)
C The speed at which toxins are broken down by the body
d)
D The speed at which enzymes work in the digestive system
30.

What type of reaction is photosynthesis?

a)

Bioluminescence

b)

Endothermic

c)

Decomposition

d)

Exothermic

31.

Why does the heart rate increase during exercise?

a)

To increase the oxygen supply to the muscles

b)

To increase glucose and oxygen supply to the muscles.

c)

To increase the supply of carbon dioxide to the cells

d)

To increase the supply of oxygen and urea to the cells.

32.

What are fats broken down into?

a)

Glucose

b)

Fatty acids and glycerol

c)

Enzymes

d)

Amino acids

33.

Which of the following is an example of a metabolic reaction?

a)

The reabsorption of water in the large intestine

b)

The formation of amino acids from glucose and nitrate ions

c)

The absorption of glucose in the small intestine.

d)

The dilation of blood vessels when hot

34.

What cellular organelle absorbs the light energy?

a)

Mitochondria

b)

Nucleus

c)

Cytoplasm

d)

Chloroplast

35.

Where does respiration occur?

a)

In the lungs

b)

In all cells of animals

c)

in all living cells

d)

in plants and animals

36.

What is aerobic respiration in yeast called?

a)

Combustion

b)

Decomposition

c)

Fermentation

d)

Oxidisation

37.

Which biological molecules control the rate of metabolism?

a)

Glucose

b)

Fatty acids and glycerol

c)

Enzymes

38.

What are the limiting factors of photosynthesis?

a)

Carbon dioxide, water and temperature

b)

Water, temperature, light intensity and carbon dioxide

c)

Light intensity, carbon dioxide and water

d)

Light intensity, carbon dioxide and temperature

39.

Glucose can be used for 1) Respiration, 2) to make starch, 3) to make amino acids, 4) to make cellulose. Which are the above are correct?

a)

1,2 & 4

b)

1, 2 & 3

c)

None of them

d)

All of them

40.

Cellulose is made from glucose. What is its function?

a)

To be used to build cell membranes

b)

As a storage molecule

c)

To be used to make proteins

d)

To strengthen cell walls

41.

Which equation represents anaerobic respiration in plants and yeast cells?

a)

A starch = glucose + ethanol

b)

B glucose = ethanol + oxygen

c)

C glucose = carbon dioxide + water

d)

D Glucose = ethanol + carbon dioxide

42.

What is the build up of carbon dioxide in the muscles known as?

a)

Breathing debt

b)

Respiration debt

c)

Carbon dioxide debt

d)

Oxygen debt

43.

Which of the following are reactants in photosynthesis?

a)

Glucose and oxygen

b)

Carbon dioxide and water

c)

Chlorophyll and light energy

d)

Glucose and water

44.

Which of the following are true of the effects of temperature on photosynthesis?

a)

The rate of photosynthesis is greatest at high temperatures

b)

The optimum temperature for photosynthesis in all plants is 37 °C.

c)

At high temperatures lower than at where enzymes are denatured, respiration reduces yields from photosynthesis.

45.

In an investigation on photosynthesis, why did a student add sodium hydrogencarbonate to the water?

a)

To decrease the temperature of the water

b)

To keep the pH of the water constant

c)

As a source of carbon dioxide

46.

Which of the following best explains why a plant breeder placed open bags containing a fungus around his greenhouse?

a)

The fungi will respire and release carbon dioxide into the greenhouse.

b)

The fungi will increase the oxygen concentration in the greenhouse

c)

Fungi in the soil encourage root growth in plants.

47.

Which of the following is able to respire anaerobically?

a)

Human heart muscle

b)

A garden plant

c)

Yeast

48.

Which of the following are true about aerobic and anaerobic respiration?

a)

Aerobic respiration produces much more energy per glucose molecule than anaerobic respiration

b)

The products of anaerobic respiration contain less energy than the products of aerobic respiration

c)

More species of organism obtain their energy anaerobically than aerobically.

49.

Which of the following best explains why yeast is used to make bread?

a)

The alcohol produced by anaerobic respiration adds flavour to the bread.

b)

The carbon dioxide produced by anaerobic respiration makes the dough rise.

c)

Yeast respires anaerobically to produce lactic acid, which produces the sour dough needed to make bread.

50.

Where does aerobic respiration take place?

a)

Chlorophyll

b)

Mitochondria

c)

Cytoplasm

d)

Vacuole

51.

What are the limiting factors of photosynthesis?

a)

Amount of water

b)

Amount of chlorophyll

c)

Light intensity

d)

Levels of carbon dioxide

e)

Temperature

52.

Where does photosynthesis mainly take place in the leaf?

a)

Upper Epidermis

b)

Spongy mesophyll

c)

Palisade mesophyll

d)

Guard cells

53.

What is the function of the waxy cuticle?

a)

Allow water to fall on leaf and glide off onto soil below

b)

Reduce the loss of water

c)

Allow light to enter

d)

Carry out photosynthesis

54.

Through which part in the leaf do gases diffuse in and out of the leaf?

a)

Guard cells

b)

Air spaces

c)

Stomata

d)

Waxy cuticle

55.

What is glucose stored as in muscles and the liver?

a)

Chitin

b)

Starch

c)

Glycogen

d)

Cellulose

56.

What is glucose stored as in leaves?

a)

Chitin

b)

Starch

c)

Glycogen

d)

Cellulose

57.

What happens to the rate of photosynthesis as the lamp is moved away from the pondweed?

a)

Decreases as number of bubbles increase

b)

Increases as the number of bubbles decrease

c)

Decreases as the number of bubbles decrease

d)

Increases as the number of bubbles increase

58.

Give the uses of energy from respiration

a)

Maintain body temperature

b)

Move molecules via active transport

c)

Move molecules via diffusion

d)

Break down small molecules to large molecules

59.

Give two similarities between anaerobic respiration in animals and plants

a)

Both release energy

b)

Both use oxygen

c)

Both use glucose

d)

Both produce lactic acid and carbon dioxide

60.

Why does a person's heart rate and breathing rate remain high after sprinting?

a)

Glucose is incompletely broken down to lactic acid

b)

Creates an oxygen debt

c)

Carbon dioxide and water are formed

d)

Glucose is completely broken down

61.

Which of these units is most suitable for measuring the length of a cell?

a)

Kilometre

b)

Metre

c)

Centimetre

d)

Micrometre

62.

By which two processes does glucose enter cells in the human body?

Tick two boxes.

a)

Active transport

b)

Diffusion

c)

Digestion

d)

Osmosis

e)

Transpiration

63.

Choose one word to complete the sentence.

The structure in a cell that controls the cell's activities is called the _________

a)

Cell membrane

b)

Cytoplasm

c)

Mitochondrion

d)

Nucleus

64.

A microscope has a x10 eyepiece and a x40 objective lens. What is the total magnification?

a)

x10

b)

x4

c)

x40

d)

x400

65.

This question is about an animal cell.

How do you describe a cell that has a nucleus?

a)

Eukaryotic

b)

Prokaryotic

c)

Archaea

d)

Bacteria

66.

What process takes place in the mitochondria?

a)

Aerobic respiration

b)

Photosynthesis

c)

Anaerobic respiration

d)

Transpiration

67.
A process where one cell forms two identical daughter cells is called...
a)
cell cycle
b)
cell division (mitosis)
c)
interphase
d)
cytokinesis
68.
Humans have 46 chromosomes, which means we have _______ of chromosomes.
a)
46 pairs 
b)
23 pairs
c)
20 pairs
d)
56 pairs
69.

Which part of the digestive system had a low pH to help the enzymes with low optimum pH level

a)

Mouth

b)

Large Intesine

c)

Small Intestine

d)

Stomach

70.

Which one of these statements about enzymes isn't true.

a)

The active site on the enzyme has a specfic shape to only fit one substrate.

b)

When the temperature around the enzyme is above it's optimum temperature, the enzyme will start to denature.

c)

Enzymes can speed up reactions. Examples can be breaking down molecules, or putting molecules together.

d)

When a enzyme is in a pH that is not in it's optimum pH range, it will die.

e)

Denaturing is when the enzyme, and it's active site, change shape.

71.

What does Bile do in digestion?

a)

Protects the cells in the stomach lining from the acid inside it.

b)

Allows the lock and key model of the enzymes to work more efficently.

c)

Creates better conditions for good bacteria to grow in digestive system.

d)

Emulsifise (break down) fats.

72.

Bile is made in the ______ and released from the_____.

a)

Liver, Gall Bladder

b)

Kidneys, Small Intestine

c)

Pancrease, Stomach

d)

Saliva Glands, Mouth

73.

The reagents for testing for the following food; Fats, Sugars, Proteins, Starch

a)

Ethanol, Benedict's, Biuret, Iodine

b)

Benedict's, Biuret, Iodine, Ethanol

c)

Biuret, Iodine, Benedict's, Ethanol

d)

Iodine, Benedict's, Ethanol, Biuret

74.

The Valves in the heart and veins prevent ________.

a)

Forward Flow

b)

Cardiac Flow

c)

Lateral Flow

d)

Back Flow

75.

Why do arteries have very thick and elastic walls.

a)

The protect the blood inside.

b)

To prevent coronary heart disease,

c)

So substance like oxygen can't move through the walls.

d)

To withstand the large amount of pressure in the blood they carry.

76.

Capillaries are really thin so substances like oxygen, carbon dioxide and glucose can move in and out of the vessel. How thick are they?

a)

Roughly the same thickness of a hair

b)

One cell thick

c)

1 Micrometres

d)

5 Micrometres

77.

What treatment for Coronary Heart Disease does this picture show?

a)

Stent

b)

Statin

c)

Heart Transplant

d)

By-Pass

78.

Cancer is a disease of ______

a)

Uncontrolled cell growth

b)

The slowing of the nervous system

c)

Genetic destruction

d)

Reducing the immune system

79.

The Xylem vessels transport what around the plant?

a)

Water

b)

Amino Acids

c)

Sugar

d)

Minerals

80.

What are parts A and B

a)

A. Stomata B. Guard Cell

b)

A. Guard Cell B. Stomata

c)

A. Palisade B. Spongy Mesophyl Cell

d)

A. Spongy Mesophyl Cell B. Palisade

81.

Select all that apply towards the PHLOEM

a)

Transports food for immediate use.

b)

Made up of dead cells.

c)

Translocation occurs.

d)

Transport goes in one direction only.

82.
in which organ is water removed from your food?
a)
stomach
b)
liver
c)
large intestine
d)
small intestine
83.
in which organ is most of your food absorbed?
a)
stomach
b)
liver
c)
large intestine
d)
small intestine
84.
which type of enzyme breaks down starch?
a)
protease
b)
lipase
c)
amylase
d)
strarchohydrase
85.
starches are broken down  into ______
a)
sugars
b)
amino acids
c)
glycerol and fatty acids
d)
carbon dioxide
86.
lipids (fats) are broken down  into ______
a)
sugars
b)
amino acids
c)
glycerol and fatty acids
d)
carbon dioxide
87.

How did you find it?

5 being very easy,

1 being very hard

a)

1/5

b)

2/5

c)

3/5

d)

4/5

e)

5/5

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