WorksheetsTransportation in plants 8A
Total questions: 20
Worksheet time: 11mins
Diffusion occurs when molecules move:
1. from lower concentration to higher concentration.
2. from higher concentration to lower concentration through a membrane.
3. from higher concentration to lower concentration.
4. when energy is used.
Identify the conducting tissue
Phloem
Xylem
Sclerenchyma
Collenchyma
Which of the following tissue is involved in water conduction?
(a) Xylem and Phloem
(b) Tracheids and trachea
(c) Sclerenchyma and Parenchyma
(d) Xylem fibres and bast fibres
If the xylem vessels of a plant are plugged:
1. The leaves will turn yellow
2. No food will be made
3. The plant will wilt (shrivel)
4. The plant will continue to grow
Raisins swell when put in:
1. Rainwater
2. Tap water
3. Mustard oil
4. Saturated sugar solution
Xylem consists of ________.
(a) Tracheids, Fibers and parenchyma
(b) Tracheids, vessels and companion cells
(c) Tracheids, fibres, vessels and parenchyma
(d) Tracheids, Companion cells, Sieve cells and vessels
The root-hairs are suited for absorbing water from the soil because:
1. They have a large surface area
2. They have a large surface area
3. They contain a solution of higher concentration than the surrounding water.
4. All the three.
Transpiration is defined as:
1. the rise of water up to the stem of a plant.
2. the elimination of water with dissolved water products.
3. the loss of water as water vapour from the aerial parts of a plant.
4. the loss of water as water vapour from the roots as well as the leaves of the plant.
Which one of the following favours the fastest transpiration rate?
1. A cool, humid, windy day,
2. A hot, humid, windy day,
3. A hot, humid, still day,
4. A hot, dry, windy day.
By which process is water lost from a leaf?
A active transport
B diffusion
C osmosis
D photosynthesis
A decrease in which factor normally causes transpiration rate to increase?
A humidity
B light intensity
C stomatal opening
D temperature
The only living element of the xylem tissue is ______.
(a) Vessels
(b) Tracheids
(c) Xylem Fiber
(d) Xylem Parenchyma
Which of the following is not the characteristic of xylem parenchyma?
(a) They have a prominent nucleus
(b) The cell wall is thick, made of chitin
(c) Only living cells of the xylem tissue
(d) Cells have large vacuoles and are colourless
How do root hair cells absorb water?
By absorption
By osmosis
By diffusion
By active transport
Identify the type of conducting tissue
Xylem and phloem
Xylem vessel and xylem tracheids
Phloem companion cell and sieve tube
Phloem fibres and companion cells
Which of the following indicates the pathway of water through a plant?
root hair cell --> xylem --> stomata
stomata --> root hair cell --> xylem
xylem --> stomata --> root hair cell
Root hairs help in absorption of water by
increasing the surface area
decreasing the surface area
holding the plant in the soil
none of the above
In active transport the direction of the movement is __________ to that of diffusion
same
opposite
