Pollination

Q.

Pollen grains of water pollinated flowers are

1. None of these

2. Light

3. Spongy

4. Sticky

Q. Define fertilisation. What are the two types of fertilisation?

Q.

The process of transfer of pollen grains from anther to stigma of a flower is called___

Q. After the pollen lands on the stigma, it initiates the growth of the pollen tube.

1. 
   True
2. 
   False

Q. what is pollination? how does self pollination differ from cross pollination?

Q.

In _________________ pollinating plants stigma is feathery

1. All of the above

2. Insect

3. Wind

4. Water

Q. The part of the flower that produces pollen is the ________.

1. ovary
2. petals
3. style
4. anther

Q. Colour of night blooming flowers is usually.

1. Violet to purple
2. Red
3. Yellow
4. Whitish

Q.

Why animals don't have plastids

Q. The transfer of pollen grains from anther to stigma is called .

1. budding
2. fertilisation
3. pollination

Q.

List any two differences between pollination and fertilization.

Q. An easy answer for Sharing is menstrual cycle ?

Q. Very short answer type :
Why are pollen grains produced in enormous quantity in maize?

Q.

Duration of menstrual cycle in human female is ___

Q.

The male gametes in a flower are contained in__.

Q.

During pollination, pollen grains get carried to___of the carpel.

Q.

What does the image depict? What is the average span of the menstrual cycle?
[2 MARKS]

Q.

The male gametes in a flower are transferred by __.

Q. Statement 1: Wind pollinated flowers need to produce more quantities of pollen grains.
Statement 2: Seeds from cross-pollinated flowers produce weaker and less healthy plants.

1. Both statements 1 and 2 are false.
2. Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
3. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
4. Statement 1 is true but statement 2 is false.

Q. Define pollination and its various types.

Q.

Pollen grains can be carried through

1. Air

2. Water

3. Insects

4. Animals

Q. Define the term pollination. Differentiate between self pollination and cross pollination. What is the significance of pollination?

Q.

Pollination occurs in

1. Conifers

2. Ferns

3. Flowering plants

4. Fungi

Q. Choose the word which best expresses the meaning of the italicised part of the sentence.

1. beautiful
2. colourful
3. prominent
4. scented

Q.

Which of the following is/are included in asexual method of reproduction?

1. Budding
2. Fission
3. Fragmentation
4. Vegetative propagation