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WorksheetsIgcse Year 8 Plant
Total questions: 30
Worksheet time: 6mins
Process by which plants manufacture carbohydrates from raw materials using energy from light is
Photosynthesis
Combustion
Respiration
The by-products of photosynthesis are
Oxygen
Glucose
Carbon dioxide
All of the above
Photosynthesis takes place in the organelle called chlorophyll
True
False
Plants carry out photosynthesis whole day
True
False
The plants use glucose for
Respiration
Making other substances that act as stores of energy (e.g. starch)
Making new materials for growth
Which are the adaptation of leaves
Thin leaves
Chlorophyll
Root Hair Cells
Xylem and phloem
Stomata and guard cell
The ________ part of the leaf contains palisade mesophyll cell
upper
lower
whole
I forget leh
Plants get the carbon dioxide from the air through diffusion through stomata
False
True
Select the correct statements.
Guard cells control the size of the stomata so that the leaf does not lose
Spongy mesophyll cells let carbon dioxide reach the other cells in the leaf
Stomata control the size of the guard cell so that the leaf does not lose
Palisade mesophyll cells let carbon dioxide reach the other cells in the leaf
The water is absorbed through the root hair cells and transported through ploem to the leaf.
True
False
Plant carries out respiration during ________
daytime only
night time only
All day
Wrong question
Photosynthesis rate is the highest during afternoon
True
False
Factors required for photosynthesis are carbon dioxide, water, sunlight, mineral and chlorophyll
True
False
A variegated leaf is taken for iodine test, the following statements are false, except..
The green part will turn blue black.
The white part will be orange-brown.
The white part will turn blue black.
The green part will be orange-brown.
Leaf A & B are put in under the sun and in a dark room respectively. Both are tested using iodine test. Select the correct statements
Leaf A turns to blue black
Leaf A turns brown
Leaf B turns blue-black
Leaf B turns brown
Soda lime absorbs carbon dioxide, sodium hydrogencarbonate releases carbon dioxide
True
False
Choose the false statements.
The leaf from the plant with sodium hydrogencarbonate turns blue black
The leaf from the plant with soda lime turns orange brown.
The leaf from the plant with sodium hydrogencarbonate remains brown
The leaf from the plant with soda lime turns blue black.
Choose the correct statements.
Xylem transport water from the root to different
parts of plants only
Ploem transport mineral ions from the root to
different parts of plants
Xylem transports sugars from leaves to all
parts of plants
Phloem transports sugars from leaves to all
parts of plants
Why plants need water?
Keep the plant rigid and upright
Cool the plant
To provide dissolved minerals
Plants no need water la.....
Consequence of insufficient magnesium is promote plant growth
True
False
Select the mineral ions required by plants
Water
Carbon dioxide
Magnesium
Nitrogen
Choose the correct statement.
Nitrogen needed by plant to make chlorophyll
Magnesium needed by plant to make cell wall
Magnesium needed by plant to make protein
Nitrogen needed by plant to make protein
Choose the correct concentration of gases in atmosphere
Oxygen 21%
Nitrogen 78 %
Carbon dioxide 0.04%
None of the answer
Which of the following increases carbon dioxide in air?
Combustion
Photosynthesis
Burning fossil fuel
Deforestation
How plants help to balance the carbon dioxide level?
Carry out photosynthesis
Absorb carbon dioxide
Carry out respiration
Absorb oxygen
When the lamp is placed further from the plant, less bubbles being released in 1 minute
True
False
The bubbles released by the aquatic plant will ignite glowing splinter
True
False
When the soda lime is added into the experiment testing the rate of photosynthesis, more bubbles released in 1 minute
True
False
The higher the temperature, the higher is the rate of photosynthesis.
True
False
Colour of light cannot affect the number of bubbles released in 1 minute
True
False
