This question paper has two sections as A and B each of 20 marks.
Section A is compulsory.
Section A ( 20 marks )
Question 1. Multiple choice questions ( 5 marks )
a. Bacteria reproduce by
I. Binary fission
II. Budding
III. Grafting
IV. Layering
b. Male reproductive part of flower is
I. Sepals
II. Petals
III. Stamens
IV. Pistil
c. Filament and anther are parts of
I. Calyx
II. Corolla
III. Carpel
IV. Stamens
d. Male and female gametes fuse to form
I. Zygote
II. Cotyledons
III. Tegmen
IV. Radicle
e. Xylem has components
I. One
II. Two
III. Three
IV. Four
Question 2. Fill in the blanks ( 5 marks )
a. Water enters the root hair by the process of...........................
b. Translocation of food in plants is carried out by the................
c. ................is required for protein synthesis in plants
d. Vallisneria flowers are pollinated by..................
e. The stalk of the flower is called the...............
Question 3. Write true or false ( 5 marks )
a. Phloem conducts water in plants.
b. Root hairs are multi- cellular structure.
c. A complete flower has three whorls.
d. Yeast is an example of multi- cellular algae.
e. The basal swollen part of the Pistil is known as stigma.
Question 4. Match the following ( 5 marks )
Column A Column B
a. Ovary I. Single cell having two nucleus
b. Anther II. Produces ovum
c. Yeast III. Mango leaves
d. Simple leaf IV. Produces pollen grains
e. Zygote V. Unicellular algae
Section B ( 20 marks )
Question 5. Differentiate between the following ( 5×2 )
a. Osmosis and diffusion
b. Xylem and phloem
c. Budding and binary fission
d. Unisexual and bisexual flower
e. Self pollination and cross pollination
Question 6. Answer the following questions ( 5×2 )
a. Define fertilisation?
b. How does a spirogyra reproduce?
c. Describe the structure of a typical flower with a well- labelled diagram?
d. List the factors that affect the rate of transpiration.
e. List the factors that affect absorption of water in plants.
