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Worksheets0654_2019_MJ_QP_12_Bio
Total questions: 13
Worksheet time: 13mins
1. What is correct for all living organisms?
They are sensitive to changes in their environment.
They excrete solid waste from their bodies.
They feed on other living organisms.
They grow larger by increasing their cell number.
2. The diagram shows a body cell and a blood capillary. The arrow represents the direction of
diffusion.
For aerobic respiration to occur in the cell, which substances does the arrow represent?
carbon dioxide and glucose
carbon dioxide and water
oxygen and glucose
oxygen and water
3. Which chemical element is found in proteins, but not in carbohydrates or fats?
carbon
hydrogen
oxygen
nitrogen
4. The graphs show the possible effects of temperature on the rate of reaction of an enzyme.
Which graph is correct for a human enzyme?
5. Plants make sugars from water and carbon dioxide.
From where do they get the carbon dioxide?
rain soaking into the leaves
the air
the soil through the roots
they make it in photosynthesis
6. What is the correct definition of ingestion?
The breakdown of large, insoluble food molecules into small, water-soluble molecules.
The movement of digested food molecules through the wall of the small intestine into the
blood.
The passing out of food that has not been digested, as faeces, through the anus.
The taking of substances into the body through the mouth.
7. Which statement about the valves found in the human transport system is correct?
They are absent in veins.
They are present in arteries.
They ensure one-way flow of blood.
They pump blood from atria to ventricles.
8. Limewater can be used to test for differences in composition between inspired and expired air.
Which row is correct?
type of air - expired, appearance of limewater - clear to milky, conclusion - more carbon dioxide present
type of air - expired, appearance of limewater - milky to clear, conclusion - more carbon dioxide present
type of air - inspired, appearance of limewater - clear to milky, conclusion - more oxygen present
type of air - inspired, appearance of limewater - milky to clear, conclusion - more oxygen present
9. In a reflex arc, which structure carries nerve impulses towards the central nervous system?
effector
motor neurone
sensory neurone
spinal cord
10. The diagram shows a section through an insect-pollinated flower.
When pollination occurs, where must the pollen grains reach?
A
B
C
D
11. Which sex chromosomes need to be present in a sperm cell to produce a male zygote?
X only
Y only
XX
XY
12. How do herbivores get their energy?
by eating animals and plants
by eating animals only
by eating plants only
directly from sunlight
13. A pupil listed some undesirable effects of deforestation.
1 increase of carbon dioxide in the atmosphere
2 extinction of species
3 flooding
4 increased number of habitats
Which effects are correct?
1, 2, 3 and 4
1, 2 and 3 only
1, 2 and 4 only
2, 3 and 4 only
