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Revision quiz unit 1 IGCSE

Total questions: 162

Worksheet time: 2hrs 1mins

Name
Class
Date
1.
What organelle is associated with the production of proteins?
a)
nucleus
b)
ribosome
c)
mitochondria
d)
cell membrane
2.
What organelle is responsible for energy production?
a)
nucleus
b)
mitochondria
c)
ribosome
d)
cell membrane
3.

Which structures do plant cells have that animal cells do NOT have?

a)

cell wall

b)

large central vacuole

c)

chloroplasts

d)

all of these

4.
Name the prokaryote?
a)
animal cell
b)
plant cell
c)
bacteria
d)
fungi cell
5.

The cell membrane is selectively permeable. What does "selectively permeable" mean?

a)

All thing can enter.

b)

Nothing can enter.

c)

Some things can, others can't enter.

6.

What is the major difference between a prokaryote and a eukaryote?

a)

prokaryotes do not have a nucleus

b)

prokaryotes do not have ribosomes.

c)

prokaryotes do not have a cell membrane.

d)

prokaryotes do not contain DNA

7.
Chloroplasts in plant cells are where this process takes place.
a)
cellular respiration
b)
photosynthesis
c)
protein production
d)
glycolysis 
8.
surrounds the cell; controls what enters/leaves cell; maintains homeostasis
a)
vacuole
b)
cell wall
c)
cell membrane
d)
lysosome
9.
control the cell's activities; contains the cell's DNA
a)
mitochondria
b)
cell membrane
c)
nucleus
d)
golgi body
10.
cells that contain a true nucleus
a)
prokaryotes
b)
eukaryotes
c)
carbohydrate
d)
plant cells
11.
Identify this structure that surrounds the entire cell.
a)
cell wall
b)
cell membrane
c)
sap vacuole
d)
cytoplasm
12.

If a cell has a nucleus it must have a:

a)

nuclear membrane

b)

capsid

c)

cell wall

d)

central vacuole

13.

The plant organelle that captures light to make energy is the:

a)

Cell Wall

b)

Mitochondria

c)

Chloroplast

d)

Ribosome

14.

The cell wall provides

a)

Genetic Material

b)

Energy

c)

Structure

d)

Proteins

15.

Organelles in cells are called membrane-bound because

a)

They are attached to the cell membrane

b)

They are surrounded by their own membrane

16.
jelly-like substance within the cell membrane that the organelles float in. 
a)
mitochondria
b)
vacuole
c)
chloroplasts
d)
cytoplasm
17.
Uses light energy to make a sugar (photosynthesis). It is green.
a)
cytoplasm
b)
mitochondria
c)
chloroplasts
d)
ribosomes
18.
A storage area for food, water and waste.
a)
vacuole
b)
chloroplasts
c)
cell wall
d)
cell membrane
19.
What structures are only found in plant cells?
a)
cell wall, cell membrane, nucleus
b)
chloroplast, cell wall, large vacuole
c)
chloroplast, large vacuole, Golgi bodies
d)
large vacuole, cell wall, mitochondria
20.
Why is the vacuole larger in a plant cell?
a)
Plants have more room for it.
b)
For storage of food and holding shape
c)
To deliver water to the cells from roots
d)
They use water more efficiently than an animal cell.
21.

What is the function of the cell membrane?

a)

Produces ATP

b)

Produces proteins and lipids

c)

Keep the organelles in place

d)

Control what enters and leaves the cell

22.
I am way bigger in plant cells than I am in animal cells. What am I?
a)
Golgi Apparatus
b)
Nucleus
c)
Vacuole
d)
Ribosomes
23.
What organelle is labeled with "C"?
a)
Mitochondria
b)
Golgi Apparatus
c)
Nucleus
d)
Endoplasmic Reticulum
24.
Which of the following organelles will you NOT find in an animal cell?
a)
Cell membrane
b)
Cell wall
c)
Golgi Apparatus
d)
Lysosome
25.
I am very present in muscles in order to provide massive amounts of ATP for movement and exercise. Who am I?
a)
Nucleus
b)
ER
c)
Mitochondria
d)
Ribosomes
26.

The cytoplasm is were......

a)

chemicals go

b)

chemical reactions take place

c)

is a jelly

d)

helps the cell get bigger

27.

The microscope......

a)

makes cells larger

b)

makes cells smaller

c)

makes the image of cells larger

d)

increases there size

28.

Plants store food as.....

a)

Glycogen

b)

Starch

c)

Glucose

d)

Sucrose

29.

Animals store food as......

a)

starch

b)

glucose

c)

glycogen

d)

fructose

30.

Select all of the biological molecules that make up our body.

a)

proteins

b)

alkanes

c)

carbohydrates

d)

nucleic acids

e)

lipids

31.

The building blocks of proteins are ....

a)

glycerol and water

b)

glucose

c)

amino acids

d)

triglycerides

32.

An example of simple sugar (monosaccharide).

a)

glucose

b)

sucrose

c)

starch

d)

glycogen

33.

Basic units of cabohydrates.

a)

simple sugars

b)

amino acids

c)

fatty acids and glycerol

d)

nucleotides

34.

An organic chemical that contains nitrogen is....

a)
Protein
b)
Lipid
c)
Saccharide
d)
Carbohydrate
35.

The diagram shows the structure of something called a triglyceride. A triglyceride is a

a)

fat

b)

protein

c)

carbohydrate

d)

sugar

36.

If the yellow and blue circles in this diagram represent amino acids, then this whole structure represents

a)

a protein

b)

a fat

c)

a reducing sugar

d)

a simple carbohydrate

e)

None of these

37.

Which chemical elements are found in lipid molecules ?

a)

Carbon, hydrogen & oxygen

b)

Carbon, nitrogen & oxygen

c)

Nitrogen, hydrogen & oxygen

d)

Nitrogen, carbon & hydrogen

38.

Which sugar is broken down during respiration ?

a)

Maltose

b)

Fructose

c)

Sucrose

d)

Glucose

39.

The thread-like filaments of fungi are called

a)

hyphae.

b)

spores

c)

zygospores

40.

One way that fungi are similar to plants is

a)

they both have cell walls made of cellulose.

b)

they both carry out photosynthesis.

c)

they both move rapidly from place to place.

d)

have membrane-bound nuclei, which contain DNA

41.

Which kingdoms contain species which can photosynthesise?

a)

Animals

b)

Plants

c)

Fungi

d)

Protoctists

e)

Prokaryotes

42.

Which kingdoms contain species which are unicellular?

a)

Animals

b)

Plants

c)

Fungi

d)

Protoctists

e)

Prokaryotes

43.

This kingdom is made up of microscopic unicellular organisms.

a)

Animals

b)

Plants

c)

Fungi

d)

Protoctists

e)

Prokaryotes

44.

This kingdom is made up of multicellular organisms which make their own food from sunlight and water.

a)

Animals

b)

Plants

c)

Fungi

d)

Protoctists

e)

Prokaryotes

45.

These two kingdoms of multicellular organisms cannot make their own food. They must break down other organisms to get energy.

a)

Animals

b)

Plants

c)

Fungi

d)

Protoctists

e)

Prokaryotes

46.

In this kingdom, the organisms' cells have no nucleus.

a)

Animals

b)

Plants

c)

Fungi

d)

Protoctists

e)

Prokaryotes

47.

What is the main difference between members of the plant and fungi kingdoms?

a)

Fungi are multicellular

b)

Fungi are heterotrophs

c)

Fungi cells have a nucleus

d)

Fungi cells have a cell wall

48.

Biologists give each species a two-word Latin name. What is the term used to describe this naming system?

a)

Binomial System

b)

Scientific name System

c)

Binary System

49.

Groups of specialized cells working together to perform the same function.

a)

tissue

b)

organelle

c)

mass

d)

tendon

50.

A structure made up of different types of tissue and performs a specific function in the body.

a)

cells

b)

tissue

c)

organ

d)

organ system

51.

Which of the following is the correct order of organization in living things from least organized to most organized?

a)

a. Organism, cell, tissue, organ, organ system

b)

a. Organ system, organ, tissue, cell, organism

c)

a. Cell, tissue, organ, organ system, organism

d)

a. Cell, organ, tissue, organ, organism, organ system

52.
All living organisms are made up of ____.
a)
Cells
b)
Bacteria
c)
Organs
d)
Tissue
53.

Which of the following is a term used to describe all the chemical reactions that take place in a living thing?

a)
respiration
b)
mutations
c)
homeostasis
d)
metabolism
54.

A plant growing towards a light source is an example of which of the following?

a)

attracting a mate

b)

destroying infectious germs

c)

responding to a stimuli

d)

obtaining moisture from the air

55.

Infants will often smile when they hear a parent’s voice. In this situation, the parent’s voice is considered

a)

stimulus

b)

response

c)

adaptation

d)

resource

56.
Which of the following characteristics of living things best explains why your legs and arms get longer and stronger as you get older? 
a)
living things respond to their environment
b)
living things maintain internal balance
c)
living things are made of cells
d)
living things grow and develop
57.
When you step out into the cold, your body shivers in order to keep its temperature at 98.6F.
a)
All living things use energy
b)
All living things contain cells
c)
All living things maintain homeostasis
d)
All living things grow
58.
The scientific name for something living is a(an)
a)
organism
b)
cell
c)
tissue
d)
human
59.

Maintaining a stable internal

environment is called

a)

homeostasis

b)

equilibrium

c)

balance

d)

evenness

60.

The light intensity where photosynthesis equals the rate of respiration:

a)

saturation point

b)

compensation point

c)

transpiration point

d)

equal point

61.

Which type of large, biological molecule are enzymes made of?

(a)  

62.

What is the name of the part of an enzyme that binds to the substrate molecule?

(a)  

63.

What is the name of the molecule that can bind to the active site of the enzyme?

(a)  

64.

What word describes any substance that speeds up a chemical reaction but do not get changed or used up themselves?

(a)  

65.

What 3 letters are found at the end of the names of most enzymes?

(a)  

66.

Which element is not found in carbohydrates?

a)

Carbon

b)

Nitrogen

c)

Oxygen

d)

Hydrogen

67.

Which element is not common to both proteins and lipids?

a)

Carbon

b)

Nitrogen

c)

Hydrogen

d)

Oxygen

68.

What is the name of the building block that proteins are made from?

a)

Amino Acid

b)

Fatty acid

c)

Glycerol

d)

Simple sugar

69.

Which of the following factors would not affect the rate of an enzyme-controlled reaction?

a)

Temperature

b)

pH

c)

Concentration of enzyme

d)

Concentration of product

e)

Concentration of substrate

70.

Which statement is true about enzymes?

a)

The shape of an enzyme's active site matches the shape of its substrate

b)

Enzymes are used up in biological reactions

c)

Enzymes work faster at higher temperatures

d)

Every enzyme has one specific substrate that it breaks down or builds up.

71.

The graph shows the effect of temperature on an enzyme. Which statement explains the trend from 10-70oC?

a)

As temperature increases, enzyme activity increases

b)

70oC is the optimum temperature for this enzyme

c)

As temperature increases, enzymes become denatured.

d)

As temperature increases, enzyme activity decreases.

e)

As temperature increases, molecules gain more kinetic energy and have more successful collisions

72.

What does the term optimum mean for enzyme temperature? Select the best description.

a)

The lowest temperature at which the enzyme works to form enzyme-substrate complexes

b)

The temperature which gives the highest enzyme activity forming the maximum number of enzyme-substrate complexes

c)

The highest temperature before denaturing occurs

73.

Which of these statements about enzymes is true?

a)

Temperature does not affect their activity

b)

They can be reused

c)

They lower the activation energy of a reaction

74.

Which statement about the optimum pH for an enzyme is correct?

a)

It is the pH at which the enzyme's activity is greatest with the maximum number of enzyme-substrate complexes being formed

b)

It is the same for all enzymes

c)

It is the pH at which the enzyme cannot be damaged by heat

75.
What is the purpose  of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
76.
Each enzyme only has 1 substrate that will fit its active site.  What is this called?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
77.
Any substance that is acted upon by an enzyme is called a(n)?
a)
Coenzyme
b)
Substrate
c)
Vitamin
d)
Polypeptide
78.
After the enzyme and substrate bind together and perform the reaction, what does the substrate become?
a)
a substrate
b)
an enzyme
c)
a product
d)
an active site
79.
In the diagram, what is letter A? 
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
80.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
81.
Letter B...
a)
active site
b)
enzyme
c)
substrate
d)
products
82.
Letter C...
a)
active site
b)
enzymes
c)
substrate
d)
products
83.
Letter E...
a)
active site
b)
enzyme
c)
substrate
d)
products
84.
Enzymes provide a site where reactants called substrates can be brought together in an enzyme-catalyzed reaction. The site is called the
a)
enzyme substrate complex.
b)
reaction site.
c)
active site.
d)
lock and key.
85.
Based on the graph, what is the optimal temperature for this enzyme? 
a)
15oC
b)
40oC
c)
30oC
d)
35oC
86.
An enzyme speeds up a chemical reaction in the cell but can only be used once.  True or False? 
a)
true
b)
false
87.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
88.
Each enzyme only has 1 substrate that will fit its active site.  What is this called?
a)
reusablility
b)
denaturation
c)
specificity
d)
fragility
89.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered denature
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
90.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
91.

What is the optimal pH for this enzyme?

a)

6

b)

10

c)

9

d)

7

92.

Changes in pH and temperature can ___________________ an enzyme which causes it to lose its shape and affects its function.

a)

puncture

b)

denature

c)

double

d)

delete

93.
Some bacteria live in hot springs. Their cells contain enzymes that function best at temperatures of 70 °C or higher. At the temperature of 50 °C, how will the enzymes in these bacterial cells most likely be affected?
a)
The enzymes will be destroyed by lysosomes
b)
The enzymes will lose their bond structure and fall apart.
c)
The enzymes will require less energy to function than at 70 °C.
d)
The enzymes will not increase the rate of reactions as much as they would at 70 °C. 
94.

The graph shows how the activity of an enzyme changes over a range of pH values.


Which of the following conclusions can be drawn from this graph?

a)

The optimum pH of the enzyme is 5.8

b)

The optimum pH of the enzyme is 6.6

c)

The enzyme’s activity continually increases as pH increases from 5.0 to 9.0

d)

The enzyme’s activity is greater around pH of 8.0 than around pH of 5.0

95.

Once a new product leaves an enzyme, the enzyme is unchanged and ready for the next substrate. What is this called?

a)

fragile

b)

reusable

c)

specific

d)

catalyst

96.

At high temperatures enzyme activity declines because of:

a)

Denaturation

b)

Enzyme death

c)

Movement

d)

It doesn´t

97.

What is the process by which plants manufacture carbohydrates from raw materials using energy from light?

a)

Respiration

b)

Photosynthesis

c)

Fermentation

d)

Transpiration

98.

Which pigment is responsible for trapping light energy from the Sun in plants?

a)

Chlorophyll

b)

Xanthophyll

c)

Anthocyanin

d)

Carotene

99.

What is the primary WASTE product released during photosynthesis?

a)

Carbon Dioxide

b)

Water

c)

Oxygen

d)

Glucose

100.

Which of the following is NOT a raw material required for photosynthesis?

a)

Carbon Dioxide

b)

Water

c)

Light Energy

d)

Oxygen

101.

Which of the following is NOT a use of the carbohydrates produced during photosynthesis?

a)

Energy Store

b)

Cell Wall Building

c)

Protein Synthesis

d)

Insect Attraction

102.

What is the balanced chemical equation for photosynthesis?

a)

O2 + CO2 -> H2O + C6H12O6

b)

6CO2 + 6H2O -> C6H12O6 + 6O2

c)

C6H12O6 + O2 -> CO2 + H2O

d)

H2O + O2 -> CO2 + C6H12O6

103.

What is the pathway of carbon dioxide from the atmosphere to chloroplasts in a leaf?

a)

Atmosphere -> Spongy Mesophyll -> Cuticle -> Chloroplasts

b)

Atmosphere -> Guard Cells -> Vascular Bundles -> Stomata

c)

Atmosphere -> Air Spaces -> Leaf Mesophyll Cells -> Chloroplasts

d)

Atmosphere -> Upper Epidermis -> Lower Epidermis -> Palisade Mesophyll

104.

What is the primary function of the palisade cells in the leaf?

a)

Water Absorption

b)

Photosynthesis

c)

Protection

d)

Gas Exchange

105.

What structures are found in the vascular bundle? (pick 2 options)

a)

Xylem

b)

Phleom

c)

Palisade mesophyll

d)

Spongy mesophyll

106.

The stomata are openings in the leaf which allow for gas exchange. Which cells found either side of the opening control the stomata?

a)

Guard cell

b)

Palisade cell

c)

Spongy mesophyll

107.

What is the role of the spongy mesophyl?

a)

It transport water

b)

It transport sugar

c)

It allows gas to move through the leaf

d)

It is where photosynthesis happens

108.

Which essential element is needed to make all four types of macromolecules?

a)

phosphorus

b)

Zinc

c)

Carbon

d)

Copper

109.

I were to test this leaf for starch, I should find a positive result...

a)

at the edges

b)

in the middle

110.

A student conducting an investigation on a plant places part of a leaf from the plant in an airtight container and left for 24 hours.

The leaf is tested for starch and is negative.

What was the leaf lacking that it needed to do photosynthesis?

a)

Water

b)

Oxygen

c)

Light

d)

Carbon Dioxide

e)

Chlorophyll

111.

A plant with variegated leaves has the starch removed from its leaves by placing it in a dark cupboard for 48 hours.

Black paper is then placed on one leaf as shown and the plant is sat in a sunny window.

After 24 hours, which part of the leaf contains starch?A

a)

A

b)

B

c)

C

d)

D

112.

In order for plants to create chlorophyll, they need to get ________________ from the soil.

a)

Nitrates

b)

Phosphates

c)

Magnesium

d)

Potassium

113.

Which letter represents the epidermis of the leaf?

a)

A

b)

B

c)

C

d)

D

e)

E

114.

In order for plants to create amino acids and proteins, they need to get ________________ from the soil.

a)

Nitrates

b)

Phosphates

c)

Magnesium

d)

Potassium

115.

Which part of the leaf is a waxy layer that protects the outer surface and prevents water loss?

a)

Stomata

b)

Guard Cells

c)

Mesophyll Cells

d)

Cuticule

116.

Which type of food is not digested before being absorbed by the body?

a)

A

b)

B

c)

C

d)

D

117.

In which structure is most glucose absorbed into the blood?

a)

A

b)

B

c)

C

d)

D

118.
What is the main purpose of vitamins and minerals in our diet?
a)
To provide energy
b)
To keep us warm
c)
To prevent diseases
d)
To help us absorb calcium
119.
Which of the following is NOT a source of vitamin D?
a)
Oily fish
b)
Eggs
c)
Liver
d)
Leafy vegetables
120.

The correct order of parts labelled 2,3,7,8

a)

Oesophagus,stomach,pancreas,liver

b)

Oesophagus,stomach,liver,pancreas

c)

Oesophagus,pancreas,stomach,liver

d)

Oesophagus,pancreas,liver,stomach

121.

The part that stores liver’s digestive juice until they are needed by the intestines.

a)

Pancreas

b)

Gall bladder

c)

Duodenum

d)

Spleen

122.

Occurs when the cells of the digestive system take in small molecules of digested food

a)

absorption

b)

digestion

c)

egestion

d)

ingestion

123.

A gastric juice found in the stomach

a)

acidic fluid

b)

pepsin

c)

rennin

d)

alkaline fluid

124.

The folds of the small intestine are covered with fingerlive projections called...

a)

bolus

b)

bile

c)

villi

d)

rugae

125.

Which of the following nutrient has no energy value?

a)

Fats

b)

Protein

c)

Carbohydrate

d)

Vitamin

126.

Which vitamin is lacking when scurvy occurs

a)

Vitamin A

b)

Vitamin E

c)

Vitamin C

d)

Vitamin D

127.

What is protein broken down into?

a)

Maltose

b)

Amino Acid

c)

Lactic Acid

d)

Glucose

e)

Sucrose

128.

In which part of the digestive system are most of the nutrients absorbed into the bloodstream?

a)

Stomach

b)

Oesophagus

c)

Small Intestine

d)

Large Intestine

129.

What is the function of dietary fibre in the human body?

a)

Provides energy

b)

Fights infection and disease

c)

Keeps the digestive system healthy

d)

Promotes healthy hair and nails

130.

Maltose is digested into glucose by maltase

a)

True

b)

False

131.

What is the function of Bile Juice secreted by Liver?

a)

It makes the food alkaline.

b)

It makes the food acidic.

c)

It breaks down the big fat globules for effective enzyme action

d)

It converts fat to fatty acid and glycerol

132.

Name part marked A.

a)

Stomata

b)

Nucleus

c)

Stoma

d)

Epidermal cell

133.

Which of the following is not true during inhalation?

a)

Diaphragm flattens

b)

External intercostal muscles contract

c)

Internal intercostal muscles relax

d)

Volume of thoracic cavity decreases

134.

What does Bell jar represent in human being?

a)

Trachea

b)

Lung

c)

Rib cage

d)

Diaphragm

135.

What does Balloon represent in human being?

a)

Trachea

b)

Lung

c)

Rib cage

d)

Diaphragm

136.

What does Glass tube represent in human being?

a)

Trachea

b)

Lung

c)

Rib cage

d)

Diaphgram

137.

What makes up a higher percentage of inspired air compared with expired air?

a)

oxygen

b)

nitrogen

c)

noble gases

d)

 carbon dioxide

138.

The main components of atmospheric air are carbon dioxide, nitrogen, oxygen and water vapour.

Which of these are present in greater quantities in expired air compared to inspired air?

a)

carbon dioxide and nitrogen

b)

nitrogen and oxygen

c)

water vapour and carbon dioxide

d)

oxygen and water vapour

139.

What is the route for carbon dioxide passing out of the body?

a)

alveoli → capillaries → bronchioles → bronchi → trachea → larynx

b)

alveoli → capillaries → bronchi → bronchioles → larynx → trachea

c)

capillaries → alveoli → bronchi → bronchioles → trachea → larynx

d)

capillaries → alveoli → bronchioles → bronchi → trachea → larynx

140.

What is the function of the human alveoli?

a)

breathing

b)

gas exchange

c)

digestion

d)

respiration

141.

The diagram shows the human breathing system. Where does diffusion of oxygen and carbon dioxide take place?

a)

A

b)

B

c)

C

d)

D

142.

The diagram shows a section through an alveolus and an associated blood capillary. In which part is the concentration of carbon dioxide highest?

a)

A

b)

B

c)

C

d)

D

143.

Which is the correct air passage in the breathing mechanism?

a)

Nostril, nasal cavity, pharynx, larynx, trachea, bronchus, bronchiole, alveolus

b)

Nostril, nasal cavity, larynx, pharynx, trachea, bronchus, bronchiole, alveolus

c)

Nostril, nasal cavity, pharynx, larynx, trachea, bronchiole, bronchus, alveolus

d)

Nostril, nasal cavity, trachea, larynx, pharynx, bronchus, bronchiole, alveolus

144.

During inhalation....

a)

intercostal muscles contract

b)

air pressure in the thoracic cavity to increase

c)

rib cage moves downwards and inwards

d)

diaphragm muscles relax and curve upwards

145.

Which of the structures of human respiratory system NOT involve in the air passage in the breathing mechanism?

a)

Trachea

b)

Intercostal muscle

c)

nostril

d)

Larynx

146.

During exhalation....

a)

intercostal muscles contract

b)

air pressure in the thoracic cavity to decrease

c)

diaphragm muscles relax and curve upwards

d)

intercostal muscles contract

147.

"Movements of the rib cage and diaphragm make the thoracic cavity smaller and cause the air pressure in the thoracic cavity to increase"


The situation happens during....

a)

inhalation

b)

exhalation

c)

excretion

d)

blood circulation

148.
The function of the stomata on a leaf is to _______ . 
a)
turn carbon dioxide into food
b)
distribute water to all parts of the leaf
c)
allow exchange of gases to take place
d)
transport air from one part of the plant to another
149.

Choose the correct combo-

a)

xylem-water, phloem -sugar

b)

xylem- sugar, phloem -water

150.

When the guard cells are filled with water, the stomata is

a)

open

b)

closed

151.

Products of respiration include:

a)

O2, H2O, energy

b)

CO2, H2O, energy

c)

CO2, H2O, O2.

d)

CO2, O2, energy

152.

The process of respiration is closely related to the temperature factor because:

a)

Temperature affects the stomatal opening and closing mechanism which affects the oxygen concentration.

b)

Temperature affects the amount of water that is the raw material of respiration

c)

Each species only respires under certain temperature conditions.

d)

Respiration consists of chemical reactions that require enzyme catalysis, so it is strongly dependent on temperature.

153.

The general equation of respiration is:

a)

C6H12O6 + O2  ---> CO2 + H2O + Q (energy).

b)

C6H12O6 + O2 ---> 12CO2 + 12H2O + Q (energy).

c)

C6H12O6 + 6O2 --> 6CO2 + 6H2O + Q (energy).

d)

C6H12O6 + 6O2 --> 6CO2 + 6H2O

154.

In which part of the plant does respiration take place?

a)

all organs

b)

leaf

c)

roots

d)

flower

155.
How many carbons are in glucose?
a)
2
b)
4
c)
6
d)
8
156.

In which way are photosynthesis and cellular respiration similar?

a)

Both processes destroy energy.

b)

Both create energy.

c)

Photosynthesis breaks down sugar while cellular respiration produces sugar.

d)

Both processes transfer energy from one form to another.

157.

What's the chemical formula for glucose?

a)

6C6H12O6

b)

C12H6O12

c)

C6H12O6

d)

CHO

158.
What happens to your breathing rate when you exercise?
a)
It increases
b)
It decreases
c)
It stays the same
159.
The following diagram shows the relationship between photosynthesis and respiration.  What products of photosynthesis are starting material for cellular respiration?
a)
glucose and oxygen
b)
heat energy and ATP
c)
carbon dioxide and water
d)
light energy and chlorophyll
160.

Glucose molecules store _____________.

a)

chemical energy

b)

kinetic energy

c)

gravitational potential energy

d)

heat energy

161.

The energy stored in glucose is transferred to ________________.

a)

A molecule known as ATP

b)

A molecule known as ADP

c)

water molecules

d)

oxygen molecules

162.
Which type of respiration occurs in the presence of oxygen?
a)
Aerobic
b)
Anaerobic

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