Class 10 Exam > Class 10 Videos > Transportation in Plants(includes water, minerals and Food)
Transportation in Plants(includes water, minerals and Food) Video Lecture - Class 10
FAQs on Transportation in Plants(includes water, minerals and Food) Video Lecture - Class 10
| 1. What is transportation in plants? |  |
Ans. Transportation in plants refers to the movement of water, minerals, and food substances throughout the different parts of the plant. It is essential for the survival and growth of plants.
| 2. How does water and minerals get transported in plants? | |
Ans. Water and minerals are transported in plants through a system of vessels known as xylem. The xylem vessels are long, hollow tubes that run from the roots to the leaves. The movement of water and minerals in xylem vessels occurs through a process called transpiration, where water is pulled up from the roots to the leaves due to the evaporation of water from the leaf surfaces.
| 3. What is the role of phloem in transportation of food in plants? | |
Ans. The phloem is responsible for the transportation of food substances, such as sugars and amino acids, in plants. It consists of living cells called sieve tube elements that are connected end to end to form a continuous tube. The movement of food in phloem occurs through a process called translocation, where the sugars are actively transported from areas of high concentration (source) to areas of low concentration (sink) in the plant.
| 4. How does the transportation of water and food in plants contribute to their growth? | |
Ans. The transportation of water and minerals through xylem provides plants with essential nutrients and helps in maintaining their turgidity. This enables plants to grow and develop properly. Similarly, the transportation of food through phloem ensures the distribution of energy-rich compounds to all parts of the plant, supporting growth, flowering, and fruiting.
| 5. How is transportation in plants affected by environmental factors? | |
Ans. Environmental factors such as temperature, humidity, light intensity, and wind can affect the rate of transpiration in plants. Higher temperatures and lower humidity levels can increase transpiration, leading to increased water uptake from the roots. Similarly, wind can enhance transpiration by increasing the evaporation of water from the leaf surfaces. These factors play a crucial role in regulating the transportation of water and nutrients in plants.
Text Transcript from Video
transportation implants
at the end of this session you will be
able to know the function of xylem and
phloem cells and explain transportation
in plants all plants need water plant
roots absorb water and minerals from the
soil water absorption is mainly carried
out by root hairs these narrow walled
hairs greatly increase the area over
which water absorption can take place
water and minerals enter the root by two
pathways Apple plastic pathway and
symplastic pathway if water and minerals
move from cell to cell through spaces
between the cell walls then it is known
as apple plastic pathway in symplastic
pathway the water and minerals move
across the cytoplasm and finally reaches
the xylem
you
xylem vessels are long narrow hollow
tubes containing no living material the
xylem transports water and soluble
mineral nutrients from the roots to
other parts of a plant about 95% of the
water absorbed is lost through the
stomata present in the leaves this
process is known as transpiration the
number of stomata is more on the lower
surface of leaves
if transpiration happens throughout the
day
then there will be a great loss of water
this is controlled by the stomata
opening and closing mechanism during the
daytime water enters into the guard
cells along with the potassium ions this
brings about a change in the shape of
the guard cells and the stoma opens
during the night the potassium ions and
water molecules leave the guard cells
thus the turgidity decreases and the
stoma closes stomata also act as main
sites of gaseous exchange in plants
leaves make use of water and the carbon
dioxide for photosynthesis glucose
formed during photosynthesis is
transported to the other parts of the
body through phloem cells
flowing tissue consists of less
specialized and nucleate parenchyma
cells sieve tube cells and companion
cells transport of food in fluid can be
up or down the stem to reach all parts
of the plant
hence the transportation in plants is
the function of xylem and phloem cells
at the end of this session you will be
able to know the function of xylem and
phloem cells and explain transportation
in plants all plants need water plant
roots absorb water and minerals from the
soil water absorption is mainly carried
out by root hairs these narrow walled
hairs greatly increase the area over
which water absorption can take place
water and minerals enter the root by two
pathways Apple plastic pathway and
symplastic pathway if water and minerals
move from cell to cell through spaces
between the cell walls then it is known
as apple plastic pathway in symplastic
pathway the water and minerals move
across the cytoplasm and finally reaches
the xylem
you
xylem vessels are long narrow hollow
tubes containing no living material the
xylem transports water and soluble
mineral nutrients from the roots to
other parts of a plant about 95% of the
water absorbed is lost through the
stomata present in the leaves this
process is known as transpiration the
number of stomata is more on the lower
surface of leaves
if transpiration happens throughout the
day
then there will be a great loss of water
this is controlled by the stomata
opening and closing mechanism during the
daytime water enters into the guard
cells along with the potassium ions this
brings about a change in the shape of
the guard cells and the stoma opens
during the night the potassium ions and
water molecules leave the guard cells
thus the turgidity decreases and the
stoma closes stomata also act as main
sites of gaseous exchange in plants
leaves make use of water and the carbon
dioxide for photosynthesis glucose
formed during photosynthesis is
transported to the other parts of the
body through phloem cells
flowing tissue consists of less
specialized and nucleate parenchyma
cells sieve tube cells and companion
cells transport of food in fluid can be
up or down the stem to reach all parts
of the plant
hence the transportation in plants is
the function of xylem and phloem cells
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Nov 15, 2024 Last updated |
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