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WorksheetsTransport in Plants Summary
Total questions: 14
Worksheet time: 7mins
What are the specialised protein channels that help to transport water across the membrane in root hair cells?
proton pumps
apoptosis channels
water channels
aquaporins
Which tissue is the arrow pointing to?
Phloem
Xylem
pith
epidermis
Which tissue type is the arrow pointing to?
xylem
endodermis
Casparian strip
pericyle
Which tissue type is the arrow point to?
cambium
xylem
phloem
pith
Which tissue type is the arrow point to?
endodermis
cortex
epidermis
casparian strip
Cellulose in the cell walls of xylem, increases the ______ of water molecules to help resist the effect of gravity.
cohesion
pressure
adhesion
arrangement
In xylem, there are gaps within the lignin called _____. These allow surrounding cells to be supplied with water.
holes
plasmolemma
pits
companion cells
The Casparian strip contains a waterproof band made of ______ that prevents further progress of water in the cell walls.
lignin
cellulose
suberin
starch
Movement of water through the cytoplasm and plasmodesmata in the root, is known as the:
apoplastic pathway
symplastic pathway
cellular pathway
vacuolar pathway
Hairs on the inner epidermis of xerophytes reduce air-flow and trap moist air. They are called:
sunken stomata
trichomes
spikes
projections
Companion cells are packed full of ______ to make ATP.
mitochondria
chloroplasts
cytoplasm
proton pumps
Which is not an example of an assimilate that could be found in the phloem sieve tube element
amino acids
sucrose
potassium ions
hormones such as oestrogen
The bulk movement of a substance, such as water in the xylem is known as:
group flow
mass flow
co-ordinated flow
team flow
When transpiration rates increase, what will happen to the cohesion tension in the xylem?
decreases
increases
stays the same
