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Y10 CS EOY_Bio

Total questions: 125

Worksheet time: 2hrs 35mins

Name
Class
Date
1.

I make proteins for the cell. What am I?

a)

ribosome

b)

cell membrane

c)

nucleus

d)

chloroplast

2.

Respiration is...

a)

Releasing energy from food using oxygen

b)

Producing waste

c)

Responding to changes in the environment

d)

Producing offspring

3.

What does the M stand for in MRS GREN

(a)  

4.

What does the G stand for in MRS GREN

(a)  

5.

What is a tissue?

a)

A group of different cells performing the same function

b)

A group of similar cells performing the same function

c)

A group of different cells performing the same function

d)

A group of different cells performing different functions

6.

What it the correct order, from smallest to largest?

a)

Cell

Organ

Tissue

Organ system

Organism

b)

Tissue

Cell

Organ system

Organ

Organism

c)

Cell

Tissue

Organ

Organ system

Organism

d)

Cell

Tissue

Organ system

Organ

Organism

7.

Which structure in a plant cell would you not find in a root hair cell?

a)

Cell wall

b)

Chloroplast

c)

Vacuole

d)

Cell membrane

8.

The red pigment in red blood cells that is able to bind to oxygen is called (a)   .

9.

Name the part of this cell, where the arrow points towards.

a)

vacuole

b)

chloroplast

c)

cell wall

d)

ribosome

10.
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
11.

Which factor will decrease the rate of diffusion across from the alveoli and into the blood?

a)

Decreasing the temperature

b)

Increasing the differences in concentration

c)

Increasing the surface area of the alveoli

12.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
13.
The diffusion of water through a semi-permeable membrane is called?
a)
Osmosis
b)
Cell wall
c)
Diffusion
d)
Respiration
14.
What is the definition of  Selective Permeability?
a)
The movement of materials across the cell membrane that requires NO ENERGY from the cell.
b)
The movement of materials through (or across) the cell membrane
c)
The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
d)
The movement of molecules from an area of high concentration to a area of low concentration 
15.
Passive transport requires no
a)
concentration gradients
b)
osmosis
c)
motion
d)
energy
16.
The movement of molecules against a concentration gradient
a)
simple diffusion
b)
facilitated diffusion
c)
active transport
d)
osmosis
17.
Where will the water go?
a)
Into the cell
b)
Out of the cell
c)
Equally in & out - it's isotonic
d)
There is no water
18.

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

19.
Three fatty acids bonded to glycerol
a)
glycogen
b)
polypeptide
c)
protein
d)
triglyceride
20.
Which of the following tests for protein?
a)
Iodine
b)
Benedicts
c)
Biuret
21.
Which of the following tests for glucose?
a)
Iodine
b)
Benedicts
c)
Biuret
22.
Which of the following tests for starch?
a)
Iodine
b)
Benedicts
c)
Biuret
23.

The monomers of proteins are

a)

nucleotides

b)

amino acids

c)

monosaccharides

d)

fatty acids

24.

Which of the following is NOT a complex carbohydrate ?

a)

Cellulose

b)

Haemoglobin

c)

Glycogen

d)

Starch

25.

What Biological Molecules is responsible for muscle formation?

a)

Carbohydrates

b)

Lipids

c)

Protein

d)

Nucleic Acids

26.

Basic units of lipids.

a)

nucleotides

b)

amino acids

c)

simple sugars

d)

fatty acids and glycerol

27.

What are the elements that make up a protein molecule?

(You may select more than one answer.)

a)

carbon

b)

hydrogen

c)

oxygen

d)

nitrogen

28.

A food sample is known to contain fats.


What will the student observe when a ethanol emulsion test is performed on it?

a)

The solution remains clear.

b)

The solution turns yellow.

c)

A cloudy white emulsion is formed.

d)

A cloudy yellow emulsion is formed.

29.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
30.
Each enzyme only has 1 substrate that will fit its active site.  What is this called?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
31.
In the diagram, what is letter A? 
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
32.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
33.
Letter B...
a)
active site
b)
enzyme
c)
substrate
d)
products
34.
Letter C...
a)
active site
b)
enzymes
c)
substrate
d)
products
35.
Letter E...
a)
active site
b)
enzyme
c)
substrate
d)
products
36.

What happens when enzymes are heated to a high temperature?

a)

The enzymes die.

b)

The shape of the enzyme are changed and it denatures

c)

The enzymes' amino acid sequence changes.

d)

The enzymes remain the same

37.
Based on the graph, what temperature does this enzyme work best? 
a)
15 C
b)
40 C
c)
30 C
d)
47 C
38.
Every enzyme has a optimal temperature and pH. True or False?
a)
True 
b)
False
39.
Enzymes are composed of which of the following monomers? 
a)
amino acids
b)
carbohydrates
c)
nucleotides
d)
monosaccharides
40.

What is the optimal pH for this enzyme?

a)

6

b)

10

c)

9

d)

7

41.

In order to make proteins, plants need to absorb

a)

Magnesium Ions

b)

Nitrate Ions

c)

Sucrose

d)

Carbon Dioxide

42.

Chlorophyll is the ___ pigment found in the chloroplast

a)

Blue

b)

Green

c)

Red

d)

Purple

43.

Part of the leaf which allows the diffusion of gases to occur

a)

Palisade Cells

b)

Spongy Mesophyll Cells

c)

Epidermis

d)

Phloem

44.

This ion is needed for the creation of chlorophyll

a)

Magnesium

b)

Iron

c)

Phosphate

d)

Sulphate

45.

carbon dioxide + _______ = glucose + oxygen

a)

Water

b)

Hydroxide

c)

Chlorophyll

d)

Sunlight

46.

State the balanced symbol equation for photosynthesis

a)

CO2 + H2O -> C6H12O6 + O2

b)

C6H12O6 + 6O2 -> 6CO2 + 6H2O

c)

6CO2 + 6H2O -> C6H12O6 + 6O2

d)

CO2 + H2O -> 6C6H12O6 + O2

47.

What is the name of the water proof layer on the top of the leaf?

a)

Vascular bundle

b)

Cuticle

c)

Palisade mesophyll

d)

Spongy mesophyll

48.

Which of the following factors affect the rate of photosynthesis in plants?

a)

oxygen concentration and light intensity

b)

carbon dioxide and light intensity

c)

nitrogen concentration and light intensity

d)

hydrogen concentration and light intensity

49.
How would the concentration of CO2 in water affect photosynthesis?
a)
The higher the CO2, the greater the rate
b)
The higher the CO2, the lower the rate
c)
CO2 concentration doesn't affect photosynthesis
d)
a greater rate of photosynthesis causes higher CO2 concentrations 
50.
The raw materials or reactants of photosynthesis are
a)
sugar and water.
b)
sugar and oxygen.
c)
carbon dioxide and water.
d)
carbon dioxide and oxygen.
51.
How does temperature affects photosynthesis rate?
a)
As temperature increases, photosynthesis rate also increases.
b)
As temperature decreases, photosynthesis rate also decreases.
c)
Plants cannot photosynthesis if the temperature is too cold or too hot. 
d)
All of the statements are true.
52.

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

a)

A

b)

B

c)

C

d)

D

53.

A student carries out an investigation to determine the rate of transpiration in plants by using the potometer in Diagram 4.

a)

1.2 cm per minute

b)

0.012 cm per minute

c)

12 cm per minute

d)

0.12 cm per minute

54.

Diagram 6 shows an experiment to study a factor that affects the rate of photosynthesis.

Which step will cause an increase in the number of gas bubbles released per unit time in the test tube?

a)

Immerse the Elodea sp. in water at 85°C

b)

Position the bulb at 5 cm from the plant

c)

Replace the 50 W bulb with a bigger bulb of the same power

d)

Replace the 50 W bulb with a 30 W bulb

55.

Diagram 8 shows an experiment to study the products of respiration and photosynthesis.

a)

A

b)

B

c)

C

d)

D

56.

Which plant organ carries out about 90% of transpiration in plants?

a)

Root

b)

Stem

c)

Leaf

d)

Flower

57.

Which combination of environmental conditions lowers the rate of transpiration in plants?

a)

A

b)

B

c)

C

d)

D

58.

Identify the leaf part.

a)

lower epidermis

b)

upper epidermis

c)

cuticle

d)

spongy layer

59.

Select the picture that shows the upper epidermis.

a)
b)
c)
d)
60.

The xylem and phloem together are know as

a)

vascular bundles.

b)

the mesophyll.

c)

stomates.

d)

guard cells.

61.
What molecule is the phloem responsible for transporting?
a)
Glucose
b)
Water
c)
Sucrose
d)
Glycogen
62.

Which of the statement is true?

a)

sinks: places where sugar is made

b)

sinks: places where water is made

c)

sinks: places where sugar is delivered to

d)

sinks: places where water is delivered to

63.

what is M

a)

phloem

b)

xylem

64.

Proteins are broken down into _______.

a)

Fatty acids

b)

Glycerol

c)

Glucose

d)

Amino acids

65.

Digestion begins in the ______.

a)

Mouth

b)

Stomach

c)

Small intestine

d)

Gallbladder

66.
What organ is this?
a)
stomach
b)
large intestine
c)
small intestine
d)
esophagus
67.

Which digestive organ is represented by the letter B?

a)

Pancreas

b)

Liver

c)

Mouth

d)

Small intestine

68.

The diagram represents a portion of a human body. The principal function of structure X is to

a)

produce amylase

b)

produce pepsin

c)

absorb water

d)

absorb nutrients

69.

The human alimentary canal consists of

a)

mouth

b)

liver

c)

small intestine

d)

oesophagus

e)

stomach

70.

What enzyme is found in saliva that starts digesting carbohydrates?

a)

amylase

b)

chyme

c)

pepsin

d)

bile

71.

What chemically breaks down food into smaller molecules?

a)

teeth

b)

muscles of the stomach

c)

enzymes

72.

Where is the bile produced?

a)

Liver

b)

Pancreas

c)

Salivary glands

d)

Gall bladder

73.

diagram show human digestive system. in which organs does digestion of protein take place

a)

w and y

b)

w only

c)

x and z

d)

y and x

74.

Where does ingestion begin?

a)

duodenum

b)

stomach

c)

mouth

d)

colon

75.

What is the acid produced in the stomach?

a)

Sulphuric acid

b)

Nitric acid

c)

Hydrochloric acid

d)

Acetic acid

76.
Which of the following foods is NOT a carbohydrate?
a)
rice
b)
bread
c)
fruit 
d)
fish
77.
Which nutrient builds, maintain and repair body tissues and cells.
a)
fat
b)
water
c)
protein
d)
carbohydrates
78.
Identify the element found in a protein that is not present in a carbohydrate
a)
Carbon
b)
Oxygen
c)
Hydrogen
d)
Nitrogen
79.

A student was given three test tubes, each containing two food substances. The student was asked to identify the food substances present in each test tube. The table shows the results of the student’s tests.

Which conclusion is consistent with the results?

a)

Egg white and maltose are present in test tube X.

b)

Egg white and starch are present in test tube X.

c)

Egg white and starch are present in test tube Z.

d)

Starch and maltose are present in test tube Y.

80.
Which mineral helps build strong bones?
a)
calcium
b)
vitamin C
c)
collagen
d)
chromium
81.

Essential for making hemoglobin; deficiency lead to anemia; common in red meat.

a)

Iron

b)

Iodine

c)

Copper

d)

Zinc

82.

Deficiency disease of Vitamin D

a)

Scurvy

b)

anemia

c)

Goiter

d)

Rickets

83.

Deficiency disease of VitaminC

a)

Scurvy

b)

anemia

c)

Goiter

d)

Rickets

84.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
85.
What is the strongest (thickest) part of the heart?
a)
right atrium
b)
right ventricle
c)
left ventricle
d)
left atrium
86.
Which blood vessels carry blood to the heart?
a)
capiliaries
b)
veins
c)
arteries
d)
arterioles
87.
What are the 4 components of blood?
a)
White blood cells, Platelets, bone marrow, and oxygen
b)
Plasma, Platelets, yellow blood cells, and nutrients
c)
Plasma, White blood cells, red blood cells, and Platelets
d)
Platelets, Red blood cells, antigens, and Rh factor
88.
These have valves that prevent backflow of blood
a)
arteries
b)
veins
c)
arterioles
d)
capillaries
89.
What part of blood is responsible for carrying oxygen to body cells?
a)
Red Blood Cells
b)
White Blood Cells
c)
Platelets
d)
Plasma
90.

Which main type of white blood cells produces antibodies?

a)

lymphocytes

b)

phagocytes

91.
This chamber of the heart RECEIVES blood returning from the body
a)
Right Atrium
b)
Right Ventricle
c)
Left Atrium
d)
Left Ventricle
92.

High blood cholesterol, diabetes and hypertension can cause ....

a)

coronary heart disease

b)

constipation

c)

anemia

d)

leukemia

93.

Structure of the red blood cell is special, it lack of nucleus. this condition provide ... .

a)

more space for hemoglobin

b)

more space for cytoplasm

c)

less space for hemoglobin

d)

less space for cytoplasm

94.

What is the meaning of coronary heart disease (CHD)?

a)

A disease of the damage septum in heart

b)

A disease when you eat a lot of unhealthy food

c)

A disease when your coronary arteries become narrower because the plaque buildup

d)

A disease when you become lazy to do exercise

95.

These are the risk factors for coronary heart disease EXCEPT

a)
b)
c)
d)
96.

Which cell engulfs and digests bacteria/pathogens?

a)

lymphocytes

b)

phagocytes

c)

platelets

97.

These are one cell thick

a)

arteries

b)

capillaries

c)

veins

98.
Largest artery in the human body:
a)
Pulmonary artery
b)
femoral artery
c)
aorta
d)
carotid artery
99.

Oxygen is transported in blood in the form of (a)   .

100.

In the lungs, carbon dioxide will diffuse out from the lungs capillaries into the alveolus.

While oxygen will diffuse into the lung capillaries from the alveolus.


True or False?

a)

True

b)

False

101.

Respiring cells need a continuous supply of

(a)  

102.

The lungs are made up of many tiny air spaces called (a)  

103.

The bronchi pair branch into smaller and smaller tubes called the (a)  

104.

The walls of the alveolus and capillaries are (a)   cell thick, allowing for ease of diffusion of gases.

105.

What is the site of gas exchange?

a)

alveoli

b)

bronchus

c)

nose

d)

trachea

106.

Which of the following are features of the alveoli that adapt them to gas exchange?

I. High surface area

II. Thin walls

III. Dry surfaces

a)

I and II only

b)

I only

c)

II and III

d)

I, II, and III

107.

What substance do we need to breathe out?

a)

Water

b)

Carbon dioxide

c)

Oxygen

d)

Carbon monoxide

108.

What is the name of the body's fuel?

a)

Protein

b)

Oxygen

c)

Glucose

d)

Carbon dioxide

109.

What is produced by anaerobic respiration?

a)

Lactic acid and energy

b)

Carbon dioxide and energy

c)

Lactic acid and oxygen

d)

Oxygen and energy

110.

Which of the following breaks down lactic acid in the body?

a)

Glucose

b)

Carbon dioxide

c)

Oxygen

d)

Water

111.

What are the name of the blood vessels that surround the alveoli called?

(a)  

112.

In an experiment on breathing, the presence of carbon dioxide in inhaled and exhaled air is tested using _____________ ____________

(a)  

113.

What is the gas released during respiration in plants?

a)

Carbon monoxide

b)

Oxygen

c)

Carbon dioxide

d)

Nitrogen dioxide

114.

The composition of the oxygen in inhaled air is

a)

21%

b)

16%

c)

4%

d)

0.04%

115.

The composition of carbon dioxide in exhaled air is

a)

79%

b)

21%

c)

4%

d)

0.04%

116.

What are the reactants of cellular respiration?

a)

CO2 + H2O

b)

H2O + O2

c)

C6H12O6 + O2

d)

C6H12O6 + H2O

117.
What are the products of aerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
118.
Where in the cell does aerobic respiration take place?
a)
Nucleus
b)
Cytoplasm
c)
Mitochondria
d)
Cell membrane
119.
Which organ breaks down lactic acid?
a)
Liver
b)
Lung
c)
Heart
d)
Bladder
120.

The correct word equation for Anaerobic respiration is

a)

glucose → lactic acid + oxygen

b)

glucose → lactic acid (+ energy released)

c)

glucose + oxygen → lactic acid (+ energy released)

d)

lactic acid → energy released

121.

What is X?

a)

Trachea

b)

Bronchus

c)

Bronchiole

d)

Epiglottis

122.

Name structure Y.

a)

TRACHEA

b)

BRONCHUS

c)

BRONCHIOLE

d)

ALVEOLUS

123.
Which organ excretes carbon dioxide?
a)
Lungs
b)
Liver
c)
Heart
d)
Kidney
124.
What happens to your breathing rate when you exercise?
a)
It increases
b)
It decreases
c)
It stays the same
125.
What happens to your pulse when you exercise?
a)
It increases
b)
It decreases
c)
It stays the same

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