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WorksheetsLatihan untuk Pentaksiran Science Form 3
Total questions: 20
Worksheet time: 10mins
Choose the part of a plant where transpiration takes place.
root
stem
flower
leaf
The water lose from a plant through the
xylem
phloem
stomata
epidermis
During photosynthesis, this substance enter the leaf through the stomata.
water
glucose
carbon dioxide
oxygen
What blood pressure is considered normal
120/80 mm Hg
100/60 mm Hg
180/100 mm Hg
80/120 mm Hg
Which is not a factor that influences the pulse rate?
Gender
Race
Health condition
Age
Which of the following leads to the lowest transpiration rate?
Light intensity is high and there is air movement
Light intensity is low and there is air movement
Light intensity is low and there is no air movement
Light intensity is high and there is no air movement
The opening of closing of stomata is controlled by the...
guard cells
palisade cells
lower epidermis cells
phloem
The diagram shows the arrangement of vascular bundle found in..
root
leaf
stem
flower
The following factor can also affect the rate of transpiration..
the number of leaves
the number of flowers
the number of stomata
the amount of water in the soil
Choose the factors which can affect the rate of transpiration.
temperature
humidity
light intensity
air movement
Which of the following processes transport oxygen from the alveoli into the capillaries?
Respiration
Inhalation
Exhalation
Diffusion
When inhalation
Thoracic cavity become smaller
The air pressure in the thoracic cavity increases
The air pressure n the thoracic cavity decreases
Air is pushed out
The composition of the oxygen in inhaled air is
21%
16%
4%
0.04%
Following are the characteristics of alveoli that make it efficient for gaseous exchange except:
Thin wall of blood capillaries
small surface area of alveoli
Moist wall of alveoli
Dense netword of blood capillaries
What is the name of the compound found in the red blood cells
Oxyhaemoglobin
Haemoglobin
Hormones
Enzymes
State the products of respiration in the body cells?
Oxygen, carbon dioxide and water
glucose, oxygen and water
carbon dioxide, water and oxygen
carbon dioxide, water and energy
Cells do cell respiration in order to make
water
glucose
energy (ATP)
oxygen
Why does cell respiration and photosynthesis rely on each other?
They are the same process
Cell respiration must occur first, then photosynthesis
They are opposites, meaning the products of one process is needed by the other process
