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Water and Life

Total questions: 66

Worksheet time: 3hrs 18mins

Name
Class
Date
1.

How does water flow through a plant (from entry to exit)?

a)

stem-root-leaves

b)

leaves-stem-root

c)

root-stem-leaves

d)

root-leaves-stem

2.

Water absorbed by roots through a process called...

a)

difussion

b)

osmosis

c)

respiration

d)

photosynthesis

3.

What are the products (result) of photosynthesis?

a)

Carbon dioxide and water

b)

Oxygen and glucose

c)

Carbon dioxide and oxygen

d)

Glucose and carbon dioxide

4.

Which substance(s) enter the leaf as an ingredient for photosynthesis?

a)

Glucose

b)

Oxygen

c)

Water

d)

Carbon Dioxide

5.

This gas is used by plants in photosynthesis

a)

Nitrogen

b)

Helium

c)

Oxygen

d)

Carbon dioxide

6.

This gas is made by plants in photosynthesis

a)

Nitrogen

b)

Carbon dioxide

c)

Helium

d)

Oxygen

7.

Plants get their water for photosynthesis from here

a)

soil

b)

air

c)

river

d)

pond

8.

This green pigment absorbs energy from sunlight

a)

chloroplast

b)

chlorophyll

c)

chromosome

d)

chloramphenicol

9.

This tissue in leaf is where most photosynthesis takes place

a)

cuticle

b)

lower epidermis

c)

palisade mesophyll

d)

spongy mesophyll

10.

These tiny holes in a leaf allow gases to move in and out

a)

stroma

b)

thylakoid

c)

cuticle

d)

stomata

11.

Describe how a plant obtain water

4 lines
12.

Describe how water is transported to the leaves of the plant

4 lines
13.

Water is transported from roots to shoots and leaves in:

a)

Xylem

b)

Phloem

c)

Stomata

d)

Cholorophyll

14.

What is transpiration?

a)

The evaporation and diffusion of water from inside leaves

b)

The uptake of water through root hair cells

c)

The loss of water from leaves by osmosis

d)

The uptake of water through stem cells

15.

What happens to the transpiration rate as light intensity increases?

a)

It changes

b)

It stays the same

c)

It decreases

d)

It increases

16.

What happens to the transpiration rate as temperature increases?

a)

It stays the same

b)

It changes

c)

It increases

d)

It decreases

17.

Look at the diagram above!

the function of the structure A is ....

a)

transfer glucose

b)

transfer carbon dioxide

c)

transfer soil

d)

transfer water

18.

How do water enter the roots from the soil?

a)

diffusion

b)

osmosis

c)

transpiration

d)

active transport

19.

Select all the functions that the root of a plant has:

a)

food storage for the plant

b)

anchors the plant to the ground

c)

absorb water and minerals from the soil

d)

keeps the plant alive in difficult conditions, when the above-ground parts die

20.

Root hairs cells are specialised cells for plant growth because

a)

they keep growing until they reach water and nutrients

b)

they have a large surface area to allow for greater photosynthesis

c)

they have a large surface area for absorbing water and nutrients

d)

they keep growing until they reach sunlight for photosynthesis

21.

Give two examples of mineral salts that are needed by plants!

4 lines
22.

Explain why a plant that does not have enough magnesium will not grow well?!

4 lines
23.
What is the name of the part of the root that allows water and minerals enter?
a)
root hairs
b)
epidermis
c)
phloem
d)
phyla
24.
The plant tissue that carries food materials DOWNWARD from the leaves to the rest of the pant is the ______.
a)
Phloem
b)
Stomata
c)
Chlorophyll
d)
Xylem
25.
Vascular tissue that transports water and minerals UPWARDS from a plant's roots is know as ______.
a)
Chlorophyll
b)
Phloem
c)
Stomata
d)
Xylem
26.
Water vapour exits a plant leaf by
a)
the stomata
b)
the epidermis
c)
the palisade cells
d)
the spongy mesophyll
27.
Which of these is true?
a)
Xylem vessels carry water and dissolved minerals up the plant
b)
Phloem tissue carry water and dissolved minerals up the plant
c)
Xylem vessels carry dissolved sucrose up and down the plant
28.
Why is the evaporation of water from leaves important?
a)
It cools leaves and helps move water up the plant.
b)
It makes the plant wilt
c)
It helps the plant to respire
29.

Water and minerals move in which direction within the plant

a)

Upward

b)

Down

30.

Where does sugar transport begin?

a)

Roots

b)

Leaves

c)

Root hairs

d)

Vascular bundles

31.
Plant transports food made in the leaves to __________. 
a)
roots 
b)
stem
c)
flowers 
d)
all of the above
32.
How do plants get their energy?
a)
through a reaction called chlorophyll 
b)
by a process called photosynthesis 
c)
by absorbing mineral nutrients from soil 
d)
by eating other organisms 
33.

Three main things plants need to survive.

a)

sunlight, oxygen, soil

b)

soil, carbon dioxide, sunlight

c)

sunlight, air, soil

d)

sunlight, carbon dioxide, water

34.
The roots absorb what for the plant? 
a)
Water and Nutrients
b)
Soil and Sun
c)
Warmth and Water
d)
Sun and Photosynthesis
35.

What role does the skin have in the excretory system?

a)

Removing dead skin cells

b)

Removing old hair follicles

c)

Removing liquid waste in sweat

d)

Protecting against infection

36.

What organ is responsible for filtering the blood?

a)

Lungs

b)

Bladder

c)

Kidneys

d)

Heart

37.
In addition to water, the principal components of urine are
a)
amino acids and fatty acids
b)
urea and salts
c)
ammonia and bile
d)
hydrochloric acid and bases
38.
In humans, the organ that most directly regulates the concentration of water in the blood is the
a)
heart
b)
liver
c)
pancreas
d)
kidney
39.

Which excretory organ eliminates water and some chemical wastes in perspiration (sweating)?

a)

lungs

b)

skin

c)

liver

d)

kidneys

40.
There are two kidneys, two ureters, one urinary bladder, and one urethra.
a)
True
b)
False
41.

Identify the structure labelled "A" in the diagram.

a)

Kidney

b)

Ureter

c)

Bladder

d)

Urethra

42.

Identify the structure labelled "B" in the diagram.

a)

Kidney

b)

Ureter

c)

Bladder

d)

Urethra

43.

Identify the structure labelled "C" in the diagram.

a)

Kidney

b)

Ureter

c)

Bladder

d)

Urethra

44.

Identify the structure labelled "D" in the diagram.

a)

Kidney

b)

Ureter

c)

Bladder

d)

Urethra

45.

All of these structures combined make up which system?

a)

Integumentary System

b)

Digestive System

c)

Urinary System

d)

Immune System

46.

What gas do we breath out as waste?

a)

Nitrogen

b)

Oxygen

c)

Hydrogen

d)

Carbon Dioxide

47.

Which organ filters blood?

a)

Kidneys

b)

Large Intestine

c)

Lungs

d)

Bladder

48.

How many kidneys do you have?

a)

1

b)

3

c)

5

d)

2

49.

True or False:

Kidneys filter waste from blood.


a)


True

b)

False

50.
Which letter represents hydrogen?
a)
A
b)
B
c)
C
d)
D
51.
How many hydrogen atoms are in one molecule of water?
a)
1
b)
2
c)
3
d)
4
52.
Which letter represents oxygen?
a)
A
b)
B
c)
C
d)
D
53.
The property where water molecules are attracted to other water molecules.
a)
adhesion
b)
capillary action
c)
cohesion
d)
universal solvent
54.
The property where water molecules are attracted to other types of molecules (surfaces).
a)
adhesion
b)
capillary action
c)
cohesion
d)
universal solvent
55.
The property where water can dissolve almost all substances on Earth.
a)
adhesion
b)
capillary action
c)
cohesion
d)
universal solvent
56.
Why can some insects walk on water?
a)
The water sticks to the insect.
b)
The insect is too light to break the surface tension.
c)
The insect has hydrophobic oils on its legs.
d)
Insects can't walk on water.
57.

Select all the functions that the root of a plant has:

a)

food storage for the plant

b)

anchors the plant to the ground

c)

absorb water and minerals from the soil

d)

keeps the plant alive in difficult conditions, when the above-ground parts die

58.

What type of bond is found BETWEEN water molecules?

a)

hydrogen bonds

b)

ionic bonds

c)

nonpolar covalent bonds

d)

polar covalent bonds

59.
When water molecules stick easily to other water molecules, this is called what?
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
60.
The tightness across the surface of water that enables paper clips to float is ____________.
a)
adhesion
b)
capillary action
c)
surface tension
d)
polarity
61.

Which of the following can water NOT dissolve?

a)

Salt

b)

Sugar

c)

Oil

d)

Baking Soda

62.

What is the correct chemical formula for water?

a)

H2O

b)

HO2

c)

H2O2

d)

2H1O

63.

At what temperature does water Freeze?

a)

0o C

b)

100o C

c)

32o C

d)

-273o C

64.

At what temperature does water Boil?

a)

0o C

b)

100o C

c)

32o C

d)

212o C

65.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
66.
Large bodies of water do not quickly fluctuate in temperature. Why?
a)
Water is a solvent.
b)
Water has a high heat capacity.
c)
Water acts as a buffer.
d)
Water is non-polar.

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