Biology ICSE Class 6 Important Questions Chapter 5 The Structure and Functions of Plant Parts
Extra Questions
Question 1.
What constitutes a root system of the plant ?
Answer;
The primary root, the secondaiy root and the root hair form the root system.
Question 2.
What is an adventitious root ?
Answer:
A root growing in an unusual location in a plant like from stems or leaves is called an adventitious root. e.g. Prop root, stilt root.
Question 3.
Name some underground modification of stems.
Answer:
Kbizome, bulb, tuber.
Question 4.
Name two plants whose roots get modified to store food.
Answer:
Radish, carrot.
Question 5.
Name two plants having climbing roots.
Answer:
Money plant, Indian ivy.
Question 6.
What are nitrogen fixing roots ?
Answer:
Some plants have roots with small swellings called nodules which contain a bacteria to convert atmospheric nitrogen into soluble nitrates. Such roots increase the soil fertility and are called nitrogen fixing roots.
Question 7.
Name some aerial modification of stem.
Answer:
Stem tendril, thorn, phylloclade.
Question 8.
Give few functions of the leaf.
Answer:
a. Manufacturing of food (Photosynthesis).
b. Gaseous exchange through stomata.
c. Transpiration i.e. release of excess of water through stomata.
Question 9.
What is stomata ?
Answer:
Stomata are small pores present on the lower surface of the leaves through which transpiration and respiration takes place.
Question 10.
Name three insectivorous plants.
Answer:
Pitcher plant, bladder wort, venus flytrap.
Question 11.
Name three types of arrangement of leaves.
Answer:
a. Alternate arrangement, e.g. Rose, sun flower.
b. Opposite arrangement, e.g. Jasmine, guava.
c. Whorled arrangement, e.g. Oleander.
Question 12.
Name the parts of a flower.
Answer:
a. Calyx (sepals)
b. Corolla (petals)
c. Androecium (the male part)
d. Gynoecium (the female part)
Question 13.
if fill in tne blanks :
Question 1.
In a seed, the Plumule grows into a …..
Answer:
In a seed, the Plumule grows into a shoot
Question 2.
and the radicle grows into a ……..
Answer:
and the radicle grows into a root
ICSE Class 6 Biology Important Questions