Plant parts and functions Flashcards
Name 1 function of a stem.
To transport water from the roots upwards to the other plant parts and transport food from the leaves to the other plant parts.
OR
To support the plant
The food-carrying tubes was removed from a plant. 3 days later, the roots of the plant was observed to become smaller and thinner. Explain why.
No food is transported from the leaves to the roots.
Name the function of root hairs
Root hairs help to increase the total surface area of the root in contact with the soil for greater rate of water and dissolved mineral salts absorption.
Two beakers were filled with the same amount of water. A plant was put in one beaker. A layer of oil was poured in both beakers.
(a) What would you observe about the volume of water in both beakers after 2 days.
(b) Explain your observation
(c) State the purpose of the layer of oil on the water in both beakers.
(a) The volume of water in the beaker with the plant decreased while the volume of water in the beaker without the plant remained the same.
(b) The roots of the plant absorbed the water in the beaker, causing the volume of water to decrease.
(c) It is to ensure that no water is lost through evaporation, making the volume of water left to be less than expected.
A beaker filled with water. A few drops of red color food dye were added to the water. A white flower was placed in the beaker for 3 days.
What can be observed about the flower after the 3 days. Explain your observation
The flower was stained red. The water-carrying tubes in the stem transported the red water up the stem to the flower, causing it to be stained red.
What does FOWI stand for?
Food-carrying tubes Outer ring, Water-carrying tubes Inner ring
How could you increase the reliability of the results.
You could increase the repetitions of the experiment.
The outer ring of a plant stem was cut beneath any leaves and just above the roots and left to grow for two weeks. An observation of the stem was drawn. The part below the cut was drawn as swollen. Is the observation correct? Explain why or why not.
No. The food carrying tubes in the outer ring of the stem were cut and the food from the leaves could not be transported to the roots. Thus the part of the stem above the cut should be swollen.
Plant M had one bunch of unripe fruit removed. Based on the plant transport system, explain how this action will increase the size of the other bunch of unripe fruit.
More food is transported from the leaves to the other unripe fruits to be stored, increasing the size of the other bunches of unripe fruits
