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Sec 4 NA Sci Bio TYS MCQ 2021 Set B
Quiz by HAO YI
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​The diagram shows an electronmicrograph of a cell.
Which structure is a ribosome?
A
B
C
D
The diagram shows an electronmicrograph of a cell.
Which structure is a ribosome?
What describes the stomach?
The diagram represents three animal cells, P, Q and R.
Each cell has oxygen molecules both inside the cell and outside the cell.
Oxygen molecules move into and out of the cells by diffusion.
Which row gives the direction of movement of the oxygen molecules for each cell?
Which row identifies the substance moved and the conditions for osmosis?
The diagram shows part of the label on a packet of food.
Which row shows the results obtained when this food is tested?
Glycogen is a large molecule made up of small units.
Which diagram represents part of glycogen molecule?
In which organ are amino acids metabolised and urea formed?
Why are most forms of life completely dependent on photosynthesis?
Which feature of a root hair cell makes it well suited for absorbing water from the soil?
What is translocation?
Which blood vessel takes blood from the aorta to the kidney?
Which row identifies these diagrams of blood vessels?
(The diagrams are not to scale.)
Blood enters the heart from the vena cava.
Which row correctly illustrates the flow of blood through the heart?
Alveoli are involved in gas exchange in humans.
What is the role of the film of water?
Flies respire using aerobic respiration.
Respiring flies are kept inside a sealed test-tube for one day.
Which row shows the decrease in gas concentration in the test-tube?
During an 800 m race athletes feel a burning sensation in their leg muscles.
Which statement explains why?
