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Worksheets

W1H1- Water & Carbohydrate

Total questions: 20

Worksheet time: 16mins

Name
Class
Date
1.
What atoms make up all carbohydrates?
a)
Carbon, Sulfur, Hydrogen
b)
Carbon, Oxygen, Phosphorus
c)
Carbon, Oxygen, Nitrogen
d)
Carbon, Oxygen, Hydrogen
2.
How many sugar units make up monosaccharides?
a)
one
b)
two
c)
three
d)
zero
3.
How many sugar units make up disaccharides?
a)
one
b)
two
c)
three
d)
zero
4.
Which do all carbohydrates do for us?
a)
provide energy
b)
make muscle
c)
make brains
d)
make hair
5.
What molecule is this
a)
sucrose
b)
protein
c)
glucose
d)
cellulose
6.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
7.
Which of these are examples of carbohydrates?
a)
DNA, RNA
b)
Fats, hormones
c)
amino acids
d)
starches, glucose, chitin
8.

Water molecules are polar, with the ___

a)

oxygen and hydrogen sides being slightly negative.

b)

oxygen and hydrogen sides being slightly positive.

c)

oxygen side being slightly positive and the hydrogen side being slightly negative.

d)

oxygen side being slightly negative and the hydrogen side being slightly positive

9.

Which of the following is TRUE about water?

a)

A

b)

B

c)

C

d)

D

10.

The density of water is highest at 4ºC. What is the effect of this property of water?

a)

Water can act as a good solvent.

b)

Water can function as lubricant.

c)

Water provides cooling effect on animals.

d)

Water can function as an insulating layer.

11.

All the sugars given are hexoses EXCEPT

a)

glucose

b)

sucrose

c)

fructose

d)

galactose

12.

Maltose consist of _____

a)

glucose + glucose

b)

glucose + fructose

c)

glucose + galactose

d)

glucose + lactose

13.

Which is the monomer of cellulose?

a)

beta-glucose

b)

alpha-glucose

c)

galactose

d)

fructose

14.

A ________ molecule is lost/removed through condensation.

a)

carbon dioxide

b)

water

c)

oxygen

d)

hydrogen

15.

Which statement is TRUE about hydrolysis?

a)

A chemical process to join 2 molecules and produce a larger, more complex molecule,

b)

A large molecule is split into smaller and simpler molecules.

c)

Involves removal of water.

d)

Adding H atom to one section and O atom to the other section.

16.
The 3 categories of carbohydrates are:
a)
Monosaccharide, disaccharide, polysaccharide
b)
glucose, fructose, galatose
c)
starch, cellulose, chitin
d)
There are no categories of carbohydrates
17.
To stay healthy, you should eat more simple carbohydrates than complex carbohydrates
a)
True
b)
False
18.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
19.
Which of the following is the reason why ice can float?
a)
The air bubbles in the frozen water make it rise.
b)
The water molecules in ice are closer together and more dense than liquid water.
c)
When water molecules expand, they take up more space and are less dense.
d)
All frozen things will float in liquid water.
20.

True or False. Carbohydrates only consist of carbon and hydrogen atoms

a)

True

b)

False