Concept of Fruit

Q.

Why is apple called a false fruit? Which part(s) of the flower forms the fruit?

Q.

What is the name of the plant hormone that causes fruit to ripen?

Q.

The edible part of the coconut is

1. Endocarp

2. Mesocarp

3. Aril

4. Seed/Endosperm

Q. How long the pollen grains retain viability?

Q.

With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.

Q.

Perisperm is

1. remnant of endosperm

2. persistent nucellus

3. peripheral part of endosperm

4. disintegrated secondary nucleus

Q.

Why the integuments of an ovule harden and the water content is highly reduced as the seed matures?

Q.

Match the following column I and column II based on the type of endosperm found in the case of the respective plants.

	Column I		Column II
A.	Jimson weed	(i)	Nuclear endosperm
B.	Helianthus annuus	(ii)	Cellular endosperm
C.	Eremurus	(iii)	Endosperm consumed
D	Arachis hypogaea	(iv)	Helobial endosperm

1. A→(iv), B→(iii), C→(i), D→(ii)
2. A→(ii), B→(i), C→(iv), D→(iii)
3. A→(i), B→(ii), C→(iv), D→(iii)
4. A→(iii), B→(i), C→(iv), D→(ii)

Q. Pear, Mango, Apple, Plum, Pineapple, Jackfruit, Strawberry, Mulberry, Fig, Banana
How many of the above are false fruit among the following?

1. Six
2. Seven
3. Eight
4. Nine

Q. Potatoes are not considered as fruits because they

1. develop from ovary and contain seed
2. develop from the roots
3. are modified stem of the plant
4. develop from the thalamus of the flower

Q.

Is guava a false fruit?

Q. Composite fruit develops from

1. single ovary
2. inflorescence
3. apocarpous ovary
4. pericarp

Q.

Which hormone promotes flowering in long-day plants?

Q. Why is the apple referred to as a false fruit?

Q.

Differentiate the layers of coconut and explain about the layers

Q.

With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.

Q. Coconut fruit is a :

1. Drupe
2. Capsule
3. Nut
4. Berry

Q.

Cotyledons and testa are edible parts in

1. Groundnut and pomegranate

2. Cashew nut and litchi

3. French bean and coconut

4. Walnut and tamarind.

Q. Which type of endosperm does the coconut water represent?

1. Nuclear type
2. Cellular type
3. Helobial type
4. It does not represent Endosperm

Q. Choose the correct alternative in the statement given below:

When fruit develops from the ovary it is called a false/true fruit.

Q.

Which plant hormone stimulates the ripening of fruit and inhibits plant growth?

Q. Differentiate between.
True and false fruit

Q. Which is example of parthenocarpic fruit?

1. Strawberry
2. Cashew
3. Banana
4. Apple

Q.

Is banana a parthenocarpic fruit?

Q. The other nuclei of cells within the embryo sac (synergids and antipodal cells) are

1. Important for fertilization
2. Important for development
3. Vestigial
4. To release food for embryo

Q. Liquid endosperm in coconut is formed as a result of

1. cytokinesis
2. absence of karyokinesis
3. cytokinesis not followed by karyokinesis
4. karyokinesis not followed by cytokinesis

Q.

The cells of the quiescent centre are characterised by

1. Dense cytoplasm and prominent nuclei.

2. Less amount of cytoplasm and small nuclei.

3. Regular division to add to the corpus.

4. Regular division to add to tunica.

Q.

Kiwi is a dry fruit.

1. True
2. False

Q.

Match the followings and choose the correct option

Group A Group B
A. Aleurone layer (i) Without fertilisation
B.Parthenocarpic fruit (ii) Nutrition
C.Ovule (iii) Double fertilisation
D.Endosperm (iv) Seed

(a) A-(i), B-(ii), C-(iii), D-(iv)
(b) A-(ii), B-(i), C-(lv), D-(iii)
(c) A-(iv), B-(ii), C-(i), D-(iii)
(d) A-(ii), B-(iv), C-(i), D-(iii)

Q.

A fruit that develops from a ripened ovary is a ____________.

1. Dry fruit

2. Fleshy fruit

3. True fruit

4. False fruit