No student devices needed. Know more
21 questions
Which of the following biological molecules contains the elements carbon, hydrogen and oxygen?
I. carbohydrates
II. proteins
III. fats
I and II only
I and III only
II and III only
I, II and III
Which of the following biological molecules contains the element nitrogen?
carbhydrates
proteins
fats
all of the above
What is the function of protein in the body?
cell growth and repair
energy storage
quick energy
pushes food through the digestive system
Which of the following biological molecules has a role in energy storage?
protein
carbohydrate
fat
vitamins
Which of the following molecules is a quick source of energy?
carbohydrate
fat
protein
water
Which of the following is a good solvent in the body?
fat
protein
carbohydrate
water
Water acts as a solvent in the body.
Which of these body processes are possible because water is a solvent?
I. transport of materials
II. digestion
III. excretion of waste
I and II only
I and III only
II and III only
I, II and III
Which carbohydrate strengthens plant cell walls?
glucose
starch
glycogen
cellulose
Which carbohydrate is stored in animal cells?
glycogen
starch
glucose
cellulose
Which carbohydrate is used for respiration?
cellulose
glucose
starch
glycogen
Which carbohydrate is stored in plant cells?
cellulose
glycogen
glucose
starch
Which biological molecule is made by joining amino acids together?
fat
protein
carbohydrate
water
Which biological molecule is made by joining together glycerol and fatty acids?
cellulose
protein
carbohydrate
fat
Which of the following statements about starch and glycogen is correct?
Starch is found in plant cells and glycogen is found in animal cells. They are used directly for respiration.
Starch is found in animal cells and glycogen is found in plant cells. They are used directly for respiration.
Starch is found in plant cells and glycogen is found in animal cells. They are storage carbohydrates.
Starch is found in animal cells and glycogen is found in plant cells. They are storage carbohydrates.
Which of the following biological molecules are made of glucose?
I. cellulose
II. glycogen
III. starch
I and II only
I and III only
II and III only
I, II and III
Which of the following biological molecules contain a type of acid?
I. carbohydrates
II. fats
III. proteins
I and II only
I and III only
II and III only
I, II and III
Which type of biological molecule is shown in the picture?
carbohydrate
fat
protein
vitamin
Which of the following are very long carbohydrate molecules?
I. cellulose
II. glucose
III. glycogen
I and II only
I and III only
II and III only
I, II and III
Which of the following are true for both starch and a protein?
I. They are long chains
II. They contain nitrogen
III. They contain hydrogen
I only
I and II only
I and III only
III only
In humans, if too much glucose is present in the blood, it is taken to the liver.
In the liver these extra glucose molecules are joined together to form a larger carbohydrate.
What is the name of this larger carbohydrate?
starch
cellulose
glycogen
glycerol
Which of the following could make one protein different to another protein?
I. the number of amino acids it contains
II. the sequence of amino acids
III. they contain amino acids
I and II only
I and III only
II and III only
I, II and III
Explore all questions with a free account