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Bio Worksheet On UT 1

The document is a revision module for Class 8 Biology focusing on Unit Test 1, containing questions on various topics such as plant physiology, reproduction, and nutrient absorption. It includes fill-in-the-blank questions, naming exercises, and definitions related to plant biology. Additionally, it features a question about a figure depicting spores under fern leaves, along with related inquiries.

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Itu Dey
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62 views3 pages

Bio Worksheet On UT 1

The document is a revision module for Class 8 Biology focusing on Unit Test 1, containing questions on various topics such as plant physiology, reproduction, and nutrient absorption. It includes fill-in-the-blank questions, naming exercises, and definitions related to plant biology. Additionally, it features a question about a figure depicting spores under fern leaves, along with related inquiries.

Uploaded by

Itu Dey
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Class 8 Biology Revision Module on UT 1.

Q1. Fill in the blanks:-

a. The cell membrane of root hair is ______ and is permeable to ______molecules.

b. The ______ requires energy which is supplied by ATP molecules.

c. The transpiration rate decreases in still air because of _______.

d. Stomata present on leaf surface help in ______ as well as_____.

e._______ and ______ reproduce through their roots.

Q2. Name the following :-

a. Two minerals obtained by the plants from air.

b. A plant disease caused by the deficiency of iron.

c. A micronutrient needed for the synthesis of plant hormones.

d. An organism that reproduces by spore formation.

e. A plant reproducing by buds on the margin of their leaves.

Q3.Define :-

a. Root pressure .

b. Lenticels.

c callus.

d. Fragmentation.

e. spores.

Q4.Observe the given figure and answer the following questions:-

a. What does this figure show?


b. Name the spherical structures visible in the picture.
c. Write the significance of these structures.
d. Give examples 5 plants in which these are found.
Answer:-

Q1.a semipermeable , water.

b. Active Transport.

C Saturated air.

d. photosynthesis , Transpiration.

. e Sweet potato and dahlia .

Q2. A. carbon and oxygen


b. Chlorosis.

c. Zinc .

d.Bacteria.

e.Bryophyllum.

Q3.a. Pressure developed in the root due to continuous inflow of water.

b.Small openings in the bark of old stems and twigs.

C .An unorganised mass of cells grow in the medium.

d.Breaking up of a plant body in to two or more pieces to produce new individuals.

e.Microscopic spherical structure covered by hard protective coat capable to grow into new
individuals.

Q4.a.spores under fern leaf

b.spores.

c.capable to reproduce into new individuals .

d.Ferns , mosses, bacteria and Bread mould.

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