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WorksheetsChapter 6 test
Total questions: 10
Worksheet time: 8mins
Which of the following best describes a heterotroph?
It is able to synthesize organic molecules from inorganic substances.
It obtains nutrients from living organisms only.
It lives on dead organic matter.
It obtains organic nutrients from the environment.
The table shows the nutritional compositions of four foods.
Which food can provide the most energy per gram?
P
Q
R
S
Excess glucose will be stored in the human body as
(1) glycogen.
(2) starch.
(3) fat.
(1) and (2) only
(2) and (3) only
(1) and (3) only
(1), (2) and (3)
It is suggested that when babies get older, they should not be fed with milk only. Babies fed only with milk for a long period of time may develop anaemia because
milk contains a lot of lactose.
milk is rich in proteins.
milk does not contain any roughage.
milk has a low content of iron.
A student carried out various tests on a food sample.
The table shows the results.
The food sample contains
sucrose.
starch.
glucose.
lipids.
Which of the following is most likely the food product bearing this nutrition label?
Wheat bread
Tofu
Coke
Sausages
If a teenager eats this food product only for a month, which of the following conditions may appear?
Diarrhoea
Constipation
Anaemia
Rickets
The graph shows the changes in the mass of three chemical substances in the human body during a month of starvation.
What do P, Q and R represent respectively?
P: proteins Q: lipids R: glycogen
P: glycogen Q: lipids R: proteins
P: lipids Q: proteins R: glycogen
P: proteins Q: glycogen R: lipids
The graph shows the percentage of carbohydrates, proteins, lipids and water in three foods, X, Y and Z.
Which of the following most likely identifies foods X, Y and Z?
X: rice Y: peanut Z: milk
X: milk Y: peanut Z: rice
X: milk Y: rice Z: peanut
X: rice Y: milk Z: peanut
The graph shows the percentage of carbohydrates, proteins, lipids and water in three foods, X, Y and Z.
Which of the following correctly arranges the energy content of per unit mass of foods X, Y and Z?
X > Y > Z
X > Z > Y
Z > X > Y
Z > Y > X
