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6093 Rush Hour

Total questions: 70

Worksheet time: 8mins

Name
Class
Date
1.

Which element is found in proteins only?

a)

Carbon

b)

Hydrogen

c)

Nitrogen

d)

Oxygen

2.

Which mixture is not alkaline?

a)

Bile

b)

Intestinal juice

c)

Gastric juice

d)

Pancreatic juice

3.

Which structure is responsible for protein synthesis?

a)

Chloroplast

b)

Mitochondrion

c)

RER

d)

Ribosome

4.

Which process does not produce carbon dioxide?

a)

Anaerobic respiration in muscle cells

b)

Anaerobic respiration in yeasts

c)

Combustion of fossil fuel

d)

Decomposition of organic material

5.

Which plant cell do not contain chloroplasts?

a)

Guard cell

b)

Epidermal cell

c)

Palisade mesophyll cell

d)

Spongy mesophyll cell

6.

Where does fertilisation take place in the human reproductive system?

a)

Ovary

b)

Oviduct

c)

Ovule

d)

Ovum

7.

Which molecule is absent in the urine of a diabetic patient?

a)

Glucose

b)

Protein

c)

Urea

d)

Water

8.

Which is not an immediate product of photosynthesis?

a)

Glucose

b)

Oxygen

c)

Starch

d)

Water

9.

Which structure is not made up of glucose molecules?

a)

Cellulose

b)

Glycerol

c)

Glycogen

d)

Starch

10.

Which molecule contains the element phosphorus?

a)

DNA

b)

Carbon dioxide

c)

Glucose

d)

Water

11.

Which process does not involve enzymes?

a)

Aerobic respiration

b)

Deamination

c)

Photosynthesis

d)

Transpiration

12.

What is the role of carbonic anhydrase in the human?

a)

To break down alcohol

b)

To break down haemoglobin

c)

To convert glucose into carbon dioxide

d)

To convert hydrogencarbonate ion into carbon dioxide

13.

Which gas is produced in the anaerobic digester of sewage treatment plant?

a)

Carbon dioxide

b)

Hydrogen

c)

Methane

d)

Oxygen

14.

Which process does not require energy?

a)

Division of onion epidermal cells

b)

Movement of water into root hair cells

c)

Peristalsis

d)

Translocation

15.

Where is hormone destroyed after it has exerted its actions?

a)

Brain

b)

Kidney

c)

Liver

d)

Lungs

16.

Which valves close to prevent back flow into right ventricle?

a)

Bicuspid valves

b)

Semi-lunar valves in aorta

c)

Semi-lunar valves in pulmonary artery

d)

Tricuspid valves

17.

Which blood vessel contains the lowest concentration of urea?

a)

Hepatic portal vein

b)

Hepatic vein

c)

Renal vein

d)

Pulmonary vein

18.

A decrease in which factor will increase rate of transpiration?

a)

Air temperature

b)

Air movement

c)

Humidity

d)

Light intensity

19.

What is found in a person with blood group AB?

a)

Antibody A and antibody B

b)

Antibody A and antigen B

c)

Antigen A and antibody B

d)

Antigen A and antigen B

20.

Which is absent in tissue fluid?

a)

Carbon dioxide

b)

Plasma proteins

c)

Phagocytes

d)

Urea

21.

When does DNA replication take place in a cell cycle?

a)

Anaphase

b)

Cytokinesis

c)

Interphase

d)

Prophase

22.

Which structure is responsible for the movement of eye ball?

a)

Chordae tendineae

b)

Erector muscle

c)

Rectus muscle

d)

Suspensory ligament

23.

Which is not a carbon sink?

a)

Deserts

b)

Forests

c)

Fossil fuel

d)

Oceans

24.

Which cannot be recycled?

a)

Carbon

b)

Energy

c)

Nitrogen

d)

Water

25.

What is the chance of a zygote carrying XY chromosomes?

a)

25%

b)

50%

c)

75%

d)

100%

26.

What is the chance of a zygote carrying a X chromosome?

a)

25 %

b)

50 %

c)

75 %

d)

100 %

27.

Which layer is not one-cell thick?

a)

Endothelial tissue of blood capillary

b)

Epidermal tissue of leaf

c)

Epidermis of human skin

d)

Epithelial tissue of villus

28.

Mitochondria produce energy for cell use. True or False?

a)

True

b)

False

29.

Sweat evaporates to remove latent heat and this helps to cool the body. True or False?

a)

True

b)

False

30.

Trachea, bronchi and bronchioles are part of the human respiratory system. True or false?

a)

True

b)

False

31.

What is the trophic level of a primary consumer in a food chain?

a)

1

b)

2

c)

3

d)

4

32.

Which organ produces adrenaline?

a)

Adrenal gland

b)

Hypothalamus

c)

Pancreas

d)

Pituitary gland

33.

Which component of white light is not absorbed by green plants?

a)

Blue

b)

Green

c)

Red

d)

Violet

34.

What is the substrate for peptidase?

a)

Amino acids

b)

Polynucleotide

c)

Polypeptide

d)

Protein

35.

Which conditions affect rate of photosynthesis?

a)

Air temperature

b)

Availability of water r

c)

Percentage of CO2 in air

d)

Light intensity

36.

In which conditions are human salivary amylase denatured?

a)

At pH 2

b)

At pH 6.9

c)

At 30 ⁰C

d)

At 60 ⁰C

37.

Name the hormone produced by testes.

(a)  

38.

The blood in umbilical vein has a lower concentration of oxygen than the blood in umbilical artery. True or False?

a)

True

b)

False

39.

Most of the excess water is excreted through sweating. True or False?

a)

True

b)

False

40.

Homologous chromosomes carry same genes. True or False?

a)

True

b)

False

41.

Homologous chromosomes always carry identical alleles. True or false?

a)

Tue

b)

False

42.

Name the condition when the lungs lose elasticity and become inflated with air.

(a)  

43.

Which system is severely affected in AIDS patients?

a)

Circulatory system

b)

Immune system

c)

Respiratory system

d)

Reproductive system

44.

What causes ovulation?

a)

A decrease in progesterone

b)

A decrease in FSH

c)

An increase in LH

d)

An increase in oestrogen

45.

A surge in LH causes ovulation. What does LH stands for?

(a)  

46.

Which day of the menstrual cycle is the corpus luteum present in the ovary?

a)

Day 1

b)

Day 5

c)

Day 10

d)

Day 15

47.

Self-pollination is a form of asexual reproduction. True or false?

a)

True

b)

False

48.

Name the structure that holds the valves in place in the heart.

(a)  

49.

Name the opening through which the male nucleus enter the ovule.

(a)  

50.

Focal length of lens increases when the curvature of lens increases. True or false?

a)

True

b)

False

51.

An increase in ADH concentration in blood, the urine will become more concentrated. True or false?

a)

True

b)

False

52.

Which sugar will not produce a brick-red precipitate when warmed with Benedict’s solution?

a)

Fructose

b)

Galactose

c)

Glucose

d)

Sucrose

53.

Daughter cells, produced by mitosis, are genetically similar to parent cell. True or false?

a)

True

b)

False

54.

Osmosis stops when the water potential of two regions are the same. True or false?

a)

True

b)

False

55.

Which row shows the composition of blood in hepatic portal vein?

a)

High amino acids, high glucose

b)

High amino acids, Low glucose

c)

Low amino acids, high glucose

d)

Low amino acids, Low glucose

56.

What causes blood clotting at a wound?

a)

Platelets and fibrinogen

b)

Platelets only

c)

Red blood cells and fibrinogen

d)

Red blood cells and platelets

57.

For which process is blood plasma necessary?

a)

Production of antibodies

b)

Conversion of fibrinogen to fibrin

c)

Transport of glucose to the liver

d)

Transport of starch to the liver

58.

Which route does carbon dioxide follow as it is removed from the body?

a)

Alveoli → bronchioles → larynx → trachea

b)

Alveoli → bronchioles → trachea → larynx

c)

bronchioles → alveoli → trachea → larynx

d)

bronchioles → alveoli → larynx → trachea

59.

Diaphragm muscles relaxes during inspiration. True or false?

a)

True

b)

False

60.

Which structure in a flower contains the female gamete?

a)

Anther

b)

Carpel

c)

Petal

d)

Sepal

61.

A woman has a 28 day menstrual cycle.

Ovulation in this woman occurs on 14 March.

Which statement is correct?

a)

Oestrogen levels will increase after 14 March.

b)

The ovum will be in the oviduct on 5 March.

c)

The woman is in the fertile phase on 15 March.

d)

The woman is in the infertile phase on 12 March.

62.

Is it possible for a couple with blood group AB and blood group B to produce a child with blood group O?

a)

Yes

b)

No

63.

Human reaction time is slower with alcohol. True or false?

a)

True

b)

False

64.

Which enzyme is needed to extract insulin gene from human chromosome?

a)

Restrict enzyme

b)

Restriction enzyme

c)

Restricting enzyme

d)

Restrictive enzyme

65.

Which is the vector for insulin gene?

a)

Plasma

b)

Plasmid

c)

Plastic

d)

Plasmolysis

66.

In which process is Carbon-14 often used?

a)

Transcription

b)

Translation

c)

Translocation

d)

Transpiration

67.

In the ringing experiment, which part of the plants is removed?

a)

Leaves

b)

Roots

c)

Phloem

d)

Xylem

68.

Which is not an effect of excessive consumption of alcohol on the society?

a)

Family violence

b)

Drink driving

c)

Financial burden

d)

Stealing

69.

Which vessel carries blood of lowest pressure?

a)

Aorta

b)

Arteriole

c)

Capillary

d)

Vein

70.

Which is the substrate for thrombin?

a)

Fibrin

b)

Fibrinogen

c)

Prothrombin

d)

Thrombokinase

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