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LC5 Y9 SEP ASSESSMENT BIO

Total questions: 89

Worksheet time: 57mins

Name
Class
Date
1.

Salmonella is caused by...

a)

Bacteria

b)

Virus

c)

Fungus

d)

Protist

2.
________ is a disease that can be passed to a person from another person, animal or object.
a)
Non-communicable disase
b)
Communicable Disease
c)
Pathogens
d)

Viruses

3.
In stage one of malaria where does the protist go after the mosquito bites a human?
a)
liver
b)
red blood cells
c)
eggs and sperm
d)
brain
4.
Why does your pupil increase in size when you enter a dark room?
a)
To protect the eye
b)

to allow more light to enter the eye

c)
to allow less light to enter the eye
d)
to look like a  pirate
5.
This part of the eye focuses light/images onto the retina.
a)
lens
b)
cornea
c)
cones
d)
vitreous humor
6.

Where does the lens focus light ?

a)

on the retina

b)

on the cornea

c)

on the pupil

d)

on the iris

7.

Which part is cerebrum?

a)

A

b)

B

c)

C

8.
What part of the brain controls hunger and thirst?
a)
Hypothalamus
b)
Thalamus
c)
Pons
d)
Medulla Oblongata
9.

What is the role of auxin that causes a plant to bend towards light?

a)

The concentration of auxin in the plant increases when there is light.

b)

Auxin causes uniform growth on every stem.

c)

Auxin causes cells that are on the dark side to grow faster.

d)

Auxin causes the increase in the number of plant cells.

10.

What is the reaction that is shown by the plant in the figure above?

a)

Positive hydrotropism.

b)

Negative phototropism.

c)

Positive thigmotropism.

d)

Negative geotropism.

11.

The higher rate of blood flow to the muscles during exercise removed larger amounts of waste products made by the muscles. Which two substances need to be removed from the muscles in larger amounts during vigorous exercise?

a)

Amino acids

b)

Carbon dioxide

c)

Glycogen

d)

Lactic acid

12.

How much more blood (in cm3 per minute) flowed to the muscles during vigorous exercise than when resting?

(a)  

13.

During the recovery period breathing rate remains high, this is to help repay oxygen (a)   .

14.

Which of these statement(s) is true.

a)

Breathing rate increases during exercise.

b)

Heart rate increases during exercise.

c)

Breathing rate remains higher than normal right after exercise.

d)

Heart rate increases when someone is at rest.

e)

Breathing rate increases when you are sleeping.

15.

Which of these statements are incorrect for anaerobic respiration? (Select 2)

a)

Oxygen is required

b)

It is more efficient

c)

Lactic acid can be produced

d)

The process is used in brewing beer and making bread.

16.

Choose the correct, balanced equation for aerobic respiration.

a)

6CO2 + 6H2O --> C6H12O6 + 6O2

b)

C6H12O6 + 6CO2 --> 6H2O + 6O2

c)

C6H12O6 + 6O2 --> 6CO2 + 6H2O

d)

C6H12O6 + O2 --> CO2 + H2O

17.

Respiration takes place in

a)

the cells

b)

the lungs

c)

the heart

d)

the brain

18.

Respiration is a process which provides cells with (a)   .

19.

Which of the following are true for malignant tumours? (Select 2)

a)

They divide more slowly

b)

They are more likely to spread to other parts of the body

c)

They are not considered to be cancerous

d)

Chemotherapy is usually required along with surgery to cure the tumour

20.
Cancer creates abnormal cells by disrupting
a)
the cell cycle
b)
red blood cell formation
c)
DNA replication
d)
ATP synthesis
21.

Smoking interferes with the lungs' ability to provide what to the rest of the body?

a)

Oxygen

b)

Ammonia

c)

Water

d)

Carbon dioxide

22.

What is emphysema?

a)

When there is too much mucus in the lungs

b)

When the alveolar walls have broken down, reducing surface area

c)

A type of lung cancer

d)

Damage to the cilia

23.

A colorless, odorless and poisonous gas found in tobacco smoke is what?

a)

carbon monoxide

b)

tar

c)

nicotine

d)

stimulant

24.

Coronary heart disease can be treated using stents, statins and bypass surgery. Which of the following describes statins?

a)

A drug that is taken to lower cholesterol in the blood, reducing the rate of plaque build up.

b)

A metal mesh that is used to hold open a blocked artery to increase blood flow.

c)

A surgical method using a vein (often from the leg) to create another pathway for blood to flow around a clot.

d)

A drug that is used to strengthen the heart beat to increase blood flow.

25.

The higher rate of blood flow to the muscles during exercise removed larger amounts of waste products made by the muscles. Which two substances need to be removed from the muscles in larger amounts during vigorous exercise?

a)

Amino acids

b)

Carbon dioxide

c)

Glycogen

d)

Lactic acid

26.

How much more blood (in cm3 per minute) flowed to the muscles during vigorous exercise than when resting?

(a)  

27.

During the recovery period breathing rate remains high, this is to help repay oxygen (a)   .

28.

Which of these statement(s) is true.

a)

Breathing rate increases during exercise.

b)

Heart rate increases during exercise.

c)

Breathing rate remains higher than normal right after exercise.

d)

Heart rate increases when someone is at rest.

e)

Breathing rate increases when you are sleeping.

29.

Which of these statements are incorrect for anaerobic respiration? (Select 2)

a)

Oxygen is required

b)

It is more efficient

c)

Lactic acid can be produced

d)

The process is used in brewing beer and making bread.

30.

Choose the correct, balanced equation for aerobic respiration.

a)

6CO2 + 6H2O --> C6H12O6 + 6O2

b)

C6H12O6 + 6CO2 --> 6H2O + 6O2

c)

C6H12O6 + 6O2 --> 6CO2 + 6H2O

d)

C6H12O6 + O2 --> CO2 + H2O

31.

Respiration takes place in

a)

the cells

b)

the lungs

c)

the heart

d)

the brain

32.

Respiration is a process which provides cells with (a)   .

33.

Which of the following are true for malignant tumours? (Select 2)

a)

They divide more slowly

b)

They are more likely to spread to other parts of the body

c)

They are not considered to be cancerous

d)

Chemotherapy is usually required along with surgery to cure the tumour

34.

The graph shows data for people diagnosed with cancer in 1961 and 2001. 78% of people diagnosed with breast cancer in 2001 were alive 10 years later.

Which type of cancer diagnosed in 1961 had the highest survival rate?

a)

Breast

b)

Prostate

c)

Skin

d)

Testicular

35.

The graph shows data for people diagnosed with cancer in 1961 and 2001. 78% of people diagnosed with breast cancer in 2001 were alive 10 years later.

Which type of cancer shows the biggest improvement in the percentage of people alive after 10 years?

a)

Breast

b)

Prostate

c)

Skin

d)

Testicular

36.
An abnormal mass of cancer cells is called a 
a)
tumor
b)
cyst
c)
lesion
d)
polyp
37.
Any substance that is known to cause cancer is called a
a)
carcinogen
b)
nicolyte
c)
pathogen
d)
retrovirus
38.
Cancer creates abnormal cells by disrupting
a)
the cell cycle
b)
red blood cell formation
c)
DNA replication
d)
ATP synthesis
39.

Why is mucus produced in the lungs?

a)

To help you cough

b)

To trap microbes to reduce the chance of infection

c)

To help the air move in and out

40.

Smoking interferes with the lungs' ability to provide what to the rest of the body?

a)

Oxygen

b)

Ammonia

c)

Water

d)

Carbon dioxide

41.

What is emphysema?

a)

When there is too much mucus in the lungs

b)

When the alveolar walls have broken down, reducing surface area

c)

A type of lung cancer

d)

Damage to the cilia

42.

Suggest the effect of long term smoking on the amount of oxygen transported in someone's blood?

a)

Decreased

b)

Increased

43.

A colorless, odorless and poisonous gas found in tobacco smoke is what?

a)

carbon monoxide

b)

tar

c)

nicotine

d)

stimulant

44.

What are cigarettes NOT linked to?

a)

lung disease

b)

cancer

c)

better physical fitness

d)

heart disease

45.

Coronary heart disease can be treated using stents, statins and bypass surgery. Which of the following describes statins?

a)

A drug that is taken to lower cholesterol in the blood, reducing the rate of plaque build up.

b)

A metal mesh that is used to hold open a blocked artery to increase blood flow.

c)

A surgical method using a vein (often from the leg) to create another pathway for blood to flow around a clot.

d)

A drug that is used to strengthen the heart beat to increase blood flow.

46.

Name the treatment shown in Diagram 2.

a)

Stent

b)

Statin

c)

Bypass

d)

Artificial valves

47.

Which of the following is coronary heart disease?

a)

Coronary artery is blocked

b)

Coronary artery gets infected with bacteria

c)

The heart gets infected with bacteria

d)

The heart is blocked

48.

What is coronary artery?

a)

Blood vessel that carry blood towards the heart muscle

b)

Blood vessel that carry blood away from the heart muscle

c)

Blood vessel that carry blood towards the lungs

d)

Blood vessel that carry blood away from the lungs

49.

What is the meaning of atherosclerosis?

a)

The buildup of fats, cholesterol in artery walls (plaque), which can restrict blood flow

b)

The buildup of blood accumulated out of sudden in the artery

c)

The name of the damaged hole of the septum in heart

d)

The equipment used in the bypass surgery

50.

What happens when the blood could not supply to the heart as there is a blockage in the coronary arteries?

(You can choose multiple answers)

a)

The muscle cell at the heart will die

b)

The person will probably get a stroke

c)

Can cause a heart attack

d)

The person does not feel anything

51.

A procedure of uses blood vessels taken from another area of the body known as

(a)  

52.
Which of these causes lung cancer?
a)
smoking
b)
drinking alcohol
c)
exercise
d)
obesity
53.
A person is told they are at risk of a heart attack what would make their health better?
a)
Drinking alcohol
b)
Start smoking
c)
exercise
d)
eat lots of burgers
54.

Non communicable diseases are mainly caused due to

a)

improper hygiene

b)

an improper lifestyle

c)

entry of pathogens in our body

d)

all of the above

55.

The enzymes become denatured if the temperature is _______ compared to its optimum temperature.

a)

too high or too low

b)

too low

c)

too high

56.

What temperature do you think our enzymes will work the best at?

a)

room temperature, 25 degrees

b)

0 degree

c)

50 degrees

d)

37 degrees

57.

What is the optimal pH of enzyme A?

a)

8

b)

2

c)

5.7-10

d)

10

58.
Based on the graph, what temperature does this enzyme work best? 
a)
15 C
b)
40 C
c)
30 C
d)
47 C
59.
What happens when an enzyme changes shape?
a)
The reaction speeds up
b)
The reaction slows down
c)
The enzyme dies
d)
The enzyme has to change back its shape to work
60.
Which of these is NOT true?
a)
Enzymes can denature (change shape) when the temperature gets too high.
b)
Enzymes can only be used once in a chemical reaction. 
c)
Extreme pH can denature enzymes.
d)
Enzymes speed up chemical reactions. 
61.
Where do substrates bind on an enzyme?
a)
voltage-gated channels
b)
surface receptor
c)
calcium channels
d)
active site
62.
Enzymes are considered to be 
a)
Lipids
b)

Carbohydrates

c)

Proteins

d)

Nucleic Acids

63.

Lipase breaks down lipids (fats0 into which of the following products:

a)

Fatty acids

b)

Simple sugars

c)

Amino acids

d)

Glycerol

e)

Carboxylic acid

64.

In an experiment to investigate the effect of pH on the activity of amylase what is the independent variable?

a)

pH

b)

Temperature

c)

Time taken for starch to be digested

d)

Concentration of enzyme

65.

State the word the describes the best pH at which an enzyme works

(a)  

66.

Which of the following should be controlled in an experiment to investigate the effect of pH on the digestion of starch?

a)

Concentration of starch solution

b)

pH

c)

Time taken for the starch to be digested

d)

Light intensity

67.

What colour does iodine solution become if starch is present in a food sample?

a)

Orange

b)

Cloudy

c)

Brick red

d)

Blue/Black

68.

Which of the following tests for protein?

a)

Iodine

b)

Benedicts

c)

Biuret

d)

Emulsion

69.

This photo represents a

a)

negative test for glucose

b)

negative test for protein

c)

positive test for starch

d)

positive test for glucose

70.

What is the function of the stomach? (Select all that apply)

a)

Contains acid to kill bacteria present in food.

b)

Churns food through muscular contractions to mechanically break down food

c)

Contains enzymes to chemically break down food

d)

Reabsorbs water from food in the digestive system

71.
A long folded tube inside the body attached to the stomach where nutrients in the food are absorbed.
a)
large intestine
b)
small intestine
c)
esophagus
d)
rectum
72.

How do the particles move in diffusion?

a)

From a region of low concentration to a region of high concentration

b)

From a region of high concentration to a region of low concentration

c)

From a region of low concentration to a region of low concentration

d)

From a region of high concentration to a region of high concentration

73.

A blood cell is placed into the jar, as seen. Where will the water go?

a)

Into the cell

b)

Out of the cell

c)

Equally in & out - it's isotonic

d)

The water is a lie

74.

Which one is the definition of active transport?

a)

movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

b)

passage of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane

c)

net movement of molecule from a region of higher concentration to region of lower concentration. Molecule down a concentration gradient

d)

net movement of molecule from a region of lower concentration to region of higher concentration. Molecule down a concentration gradient

75.
The roots of a plant contain a high concentration of minerals and the soil contains a lower concentration.  The roots absorb minerals from the soil.  This is an example of
a)
passive transport.
b)
active transport.
c)
diffusion
d)
osmosis
76.

Recall the main function of a xylem cell.

a)

To transport nutrients (mainly sucrose) to different parts of a plant.

b)

To make energy for the plant via photosynthesis.

c)

To transport carbon dioxide to the leaves for photosynthessis.

d)

To transport water to different parts of plant.

77.

What happens to the movement of air bubble if apparatus is kept in front of a fan

a)

Air bubble does not move

b)

Air bubble moves very little

c)

Air bubble does not change its position

d)

Air bubble moves very fast

78.

Which number is labelling the stomata? (write answer as a number not in words e.g. 3)

(a)  

79.

Calculate the number of stomata per mm2 for the leaf shown in Figure 1.

(a)  

80.
If the image measures 100 mm and the scale bar is is 50 µm, what is the magnification?
a)
2,000 x
b)
150 x
c)
5,000 x
d)
20 x
81.

Plant stem cells, found at the tips of roots and shoots are called __________________.

a)

Meristem

b)

Xylem

c)

Phloem

d)

Mesophyll

82.

Which of the following statements are true for adult stem cells?

a)

Undifferentiated cells

b)

Taken from bone marrow

c)

Taken from human embryos

d)

Can differentiate into all cell types

e)

Can differentiate into some cell types

83.

Name part (i).

a)

nucleus

b)

chromosome

c)

gene

d)

cytoplasm

84.

Why do muscle cells need to divide by mitosis more often than most other cells?

a)

To contract the muscles

b)

To repair the muscles

c)

To supply more oxygen to the muscles

d)

To transmit nerve impulses

85.

What is coronary artery?

a)

Blood vessel that carry blood towards the heart muscle

b)

Blood vessel that carry blood away from the heart muscle

c)

Blood vessel that carry blood towards the lungs

d)

Blood vessel that carry blood away from the lungs

86.

What happens when the blood could not supply to the heart as there is a blockage in the coronary arteries?

(You can choose multiple answers)

a)

The muscle cell at the heart will die

b)

The person will probably get a stroke

c)

Can cause a heart attack

d)

The person does not feel anything

87.
Which of these causes lung cancer?
a)
smoking
b)
drinking alcohol
c)
exercise
d)
obesity
88.
A person is told they are at risk of a heart attack what would make their health better?
a)
Drinking alcohol
b)
Start smoking
c)
exercise
d)
eat lots of burgers
89.

A procedure of uses blood vessels taken from another area of the body known as

(a)  

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