Plant Transportation System

Question 1

How do various parts of plants get the food and water they need?

Answer 1

A plant has different tubes that transport food and water to its various parts.

Question 2

True or False: Plant roots make food.

Answer 2

False: Roots take in water and minerals from soil, the leaves make food.

Question 3

Leaves make food, in the form of _________, during ______________ (process)

Answer 3

Sugar, photosynthesis

Question 4

Name two kinds of tubes that make up plant transport system.

Answer 4

1. Food-carrying tubes (Phloem)
2. Water-carrying tubes (Xylem)

Question 5

True of False:
Water-carrying tubes deliver sugar to all parts of the plant.

Answer 5

False.
Water-carrying tubes bring water and minerals to all parts of the plant.

Question 6

True of False:
Water-carrying tubes deliver sugar to all parts of the plant.

Answer 6

False.
Water-carrying tubes bring water and minerals to all parts of the plant.

Question 7

True or False:
Plant transport tubes run up and down the stem.

Answer 7

True.

Question 8

True or False:
Food-carrying tubes transport sugar from the roots to all parts of the plant.

Answer 8

False:
Food-carrying tubes transport sugar from the leaves to all parts of the plant.

Question 9

True or False:
Water-carrying tubes only bring water from the roots to all parts of the plant.

Answer 9

False.
Water-carrying tubes bring water and minerals to all parts of the plant.

Question 10

Fill in the blanks:
1. Water-carrying tubes bring water and minerals from the ______ to all parts of the plants.
2. Food-carrying tubes bring food (sugar) from the _______ leaves to all parts of the plants.

Answer 10

1. Roots
2. Leaves

Question 11

Fill in the blanks:
1. Water-carrying tubes bring water and minerals from the ______ to all parts of the plants.
2. Food-carrying tubes bring food (sugar) from the _______ leaves to all parts of the plants.

Answer 11

1. Roots
2. Leaves

Question 12

True or False:
Leaves in a plant get water directly from rain.

Answer 12

False:
Plants get water from the soil, through the roots and is brought up to the leaves through water-carrying tubes.

Question 13

True or False:
Water flows up the stem from the roots, whilst food is sent down from the leaves.

Answer 13

True.

Question 14

True or False:
Only plants with roots can take in water.
If a plant’s roots have been cut off it will not get any water.

Answer 14

False.
Even plants whose roots have been cut off will take in water, but less well (lesser water).

Question 15

True or False:
Plants with more leaves will make more food, and will therefore take in more water.

Answer 15

True.

Question 16

True or False:
Leaves transport food to other parts of the plant.

Answer 16

False.
Leaves produce/make food, but the food-carrying tubes deliver it.

Question 17

Is there is a part of a plant that has both water-carrying and food carrying tubes?
If yes, which is it?

Answer 17

Yes, the stem has both kinds of tubes.

Question 18

True or False:
The roots receive water and food through water-carrying tubes.

Answer 18

False.
The roots take water from the soil, and deliver the water via water-carrying tubes.
Food is not delivered through water-carrying tubes.

Question 19

When I left my white rose in a vase of water overnight, I was surprised to find it had turned pink the next morning.
What could be a possible explanation?

Answer 19

The water in the vase was pink/red coloured water, and the stem carried the coloured water from the roots to the rest of the plant.

Question 20

Select the all the correct flows of water:

1. Roots »» Stem »» Leaves
2. Roots »» Leaves »» Stems
3. Roots »» Stems »» Flowers
4. Roots »» Flowers »» Leaves
5. Stems »» Roots »» Leaves

Answer 20

1. Roots »» Stem »» Leaves
2. Roots »» Stems »» Flowers

Question 21

Select the correct flows of food:

1. Roots »» Stem »» Leaves
2. Flowers »» Leaves »» Stem »» Roots
3. Leaves »» Stem »» Roots
4. Leaves »» Stem»» Flowers

Answer 21

3. Leaves »» Stem »» Roots
4. Leaves »» Stem»» Flowers

Question 22

When a ring of the stem is removed from a plant (below the leaves), after some time a swelling is noticed above the removed portion.
a) Why?
b) What is the a potential consequence for the plant?

Answer 22

Food-carrying tubes are removed, and so the food made by the leaves cannot be carried downwards to the roots.
The swelling is the accumulation of food which is stuck.

If food cannot be delivered to the roots, they will eventually stop being able to take in water and minerals.
Without water and minerals, eventually the whole plant will die.

Question 23

What are the scientific terms for:
1. Water-carrying tubes
2. Food-carrying tubes

Answer 23

1. Water = Xylem
2. Food = Phloem

Question 24

True or False:
Food-carrying tubes (Phloem) can be found in the leaves and stem, but not the roots.

Answer 24

False.
Phloem can be found in not only the leaves and stem, but also the roots.

Question 25

A farmer noticed that when he removed food-carrying tubes from his grape vine, the fruits grew larger.
1. Why are the fruits larger?
2. Is this a good long-term strategy for the farmer? Why, or why not?

Answer 25

1. The fruits are larger as the plant cannot send the food down to the roots - so there is more of the food for the fruits, and they grow larger.
2. It is not a good long-term strategy, as the plant would soon die.
   Food is needed in the roots (and other all other parts of the plant)
   Without food the roots will stop being able to take in water and minerals.
   Without water and minerals the plant cannot live.

Question 26

Imagine two identical plants, except one has many more roots than the other.
Which would obtain more water over time?

Answer 26

The plant with more roots would obtain more water.