Answers marked verified were checked during generation against the chapter context and source question text.
Your Progress - Chapter 40% complete
1I. Choose the correct answer:4 questions
Q.1The pond is an example of ………v
- A. Marine habitat
- B. Freshwater habitat
- C. Deserts
- D. Mountain
Answer:(b) Freshwater habitat
Q.2The important function of stomata is ______v
- A. Conduction
- B. Transpiration
- C. Photosynthesis
- D. Absorption
Q.3Organs of absorption are ………v
- A. Root
- B. Stem
- C. Leaf
- D. Flower
Q.4The habitat of water hyacinth is ______v
- A. Aquatic
- B. Terrestrial
- C. Desert
- D. Mountain
2II. True or False – If false give the correct answer.1 questions
Q.G1Plants can live without water. All plants have chlorophyll. Plants have three parts; the root, the stem, and the leaves. Mountain is an example of a freshwater habitat. Root is modified into spines. Green plants need sunlight.v
Answer:False – They need water to carry out various functions.
False – Only green plants have chlorophyll.
True
False – Mountain is an example of Terrestrial habitat.
False – Spines are usually modifications of leaves.
True
3III. Fill in the blanks.1 questions
Q.G2Earth’s surface is covered by ……….. % of water. The driest places on earth are ………. Fixation and absorption are the main functions of ………. Primary organs of photosynthesis are ……….. Taproot system present in ……….. plants.v
Answer:70%
Deserts
roots
leave
dicot.
4V. Arrange in the correct sequence.2 questions
Q.1Leaf – Stem – Root – Flowerv
Answer:root – stem – leaf – flower
Q.2Transpiration – Conduction – Absorption – Fixation.v
Answer:Fixation, Absorption, Conduction, Transpiration.
5VI. Very short answer.3 questions
Q.1Classify plants on the basis of their habitat.v
Answer:Terrestrial and Aquatic are the 2 habitats
Q.3Define the term habitat.v
Answer:Each and every organism needs a place to live and reproduce known as habitat.
The dwelling place of any organism is its habitat. Eg. Aquatic habitat
Q.4Relate the terms leaves and photosynthesis.v
Answer:Leaves are green in colour, they have chlorophyll and do photosynthesis.
6VII. Short answer.4 questions
Q.1Why do you call Jasmine plants a twiner?v
Answer:Weak plant, cannot stand on its own, must climb on any support to survive.
Q.2Compare the taproot and fibrous root systems.v
Answer:Taproot system:
Consists of a single root.
it grows straight down in the ground
Seen in misogynous plants.
Fibrous root system:
Consists cluster of roots.
It is thin and uniform in size.
Seen in monocotyledonous plants.
Q.3Distinguish between terrestrial and aquatic habitats.v
Q.4List out the plants present in your school garden.v
Answer:Mango tree, Neem tree, Water lily, Clitoria, Hibiscus
7VIII. Answer in detail.1 questions
Q.1Make a list of functions of root & stem.v
Answer:Functions of root:
The root,
Fixes the plant to the soil.
Absorbs water and minerals from the soil.
Stores food in some plants like carrots and beetroot.
Functions of stem:
The stem,
Supports the branches, leaves, flowers, and fruits.
Transports water and minerals from roots to upper aerial plant parts.
Transports the prepared food from leaves to other parts.
Stores food as in the case of sugarcane.
8I. Multiple Choice Questions.4 questions
Q.1Maize has ……….v
- A. taproot
- B. fibrous root
- C. Adventitious root
- D. Fasciculate root
Q.2The underground part of the main axis of a plant is known as ______v
- A. shoot
- B. node
- C. root
- D. leaf
Q.3The stalk of the leaf is knownv
- A. peduncle
- B. rachis
- C. pedicel
- D. petiole
Q.4On the lower side of the leaf, there are tiny pores or openings known as ______v
- A. Leaf base
- B. midrib
- C. petiole
- D. stomata
9II. Fill in the blanks.1 questions
Q.G3Special features in plants which help them to survive in the habitats they live are known as ………. The Great Indian Desert is an arid region of rolling sandhills on the Indian sub continent is known as ………. ………. is the main vein of the lamina of the leaf. A change in an organism caused by environmental factors is known as ………v
Answer:Adaptations
Thar desert
Midrib
Modification
10III. Arrange in the correct sequence.1 questions
Q.2Internode – Node – Axillary Bud – Terminal Budv
Answer:Terminal Bud – Axillary Bud – Node – Internodes.
11IV. Very short answer.1 questions
Q.4Give some examples of monocotyledonous plants and dicotyledonous plants.v
Answer:Monocotyledonous plant – Grass, Paddy, Maize
Dicotyledonous plant – Bean, Mango, Neem
12V. Answer in Details.1 questions
Q.1Explain Tendril climber.v
Answer:Tendril a twining climbing organ of some weak stemmed plants.
It coils around support and helps the plant to climb.
Sweet peas – Here leaflets are modified into tendrils.
Bitter gourd – Axillary buds of plant-modified into tendril, help climb up.