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Worksheets0654_2018_ON_QP_23_Bio
Total questions: 13
Worksheet time: 13mins
1. One way to test for microscopic life in soil is to see if carbon dioxide is released.
Which characteristic of living things is being tested?
growth
nutrition
reproduction
respiration
2. The diagram shows a red blood cell. If it is placed in water, it will burst. If a plant cell is placed in water, it will not burst.
What prevents a plant cell from bursting?
cell wall
nucleus
regular shape
vacuole
3. The diagram shows four test-tubes in beakers at different temperatures.
Each test-tube contains the same amount of starch suspension. Equal amounts of salivary amylase are added to each test-tube.
After 20 minutes, which test-tube will contain the most reducing sugar?
A
B
C
D
4. What traps light energy during photosynthesis?
chlorophyll
glucose
nitrate ions
water
5. Water is taken in through the roots and lost from the leaves of tall trees.
What enables this to happen?
active transport by the xylem vessels
pressure from the roots
translocation in the phloem
transpiration loss from the leaves
6. The diagram shows the structure of a villus.
Which structure absorbs and carries away amino acids?
A
B
C
D
7. What is an effect of carbon monoxide on the gas exchange system?
It causes lung cancer.
It causes the alveoli to stick together.
It slows down the diffusion of carbon dioxide through the alveoli.
It stops oxygen from combining with haemoglobin.
8. To which environmental stimulus is a plant root responding when it grows downwards?
a decrease in soil water content
light falling on the leaves of the plant
rising temperature
the force of gravity
9. What is an advantage of asexual reproduction compared with sexual reproduction?
A specific disease is less likely to spread throughout the whole population.
It increases variation in the offspring.
It produces offspring more rapidly.
It requires two parents.
10. Which part of a flower produces pollen grains?
anther
ovary
sepal
stigma
11. In pea plants, the allele for purple flowers is dominant to the allele for white flowers.
Two heterozygous purple-flowered plants are crossed.
What will be the expected flower colour of the offspring plants?
all purple
all white
1 purple : 1 white
3 purple : 1 white
12. Some strains of bacteria developed resistance to certain antibiotics.
What does this not involve?
artificial selection
mutation
natural selection
survival of the fittest
13. The diagram shows part of the carbon cycle.
Which arrow represents plant respiration?
A
B
C
D
