Structure of Megasporangium

Q. How many megaspore mother cells are present inside a nucellus?

1. 1
2. 2
3. 3
4. 4

Q. Nucellus is made up of which type of cells?

1. Parenchyma cells
2. Sclerenchyma cells
3. Collenchyma cells
4. None of these

Q.

Identify the labelled parts of the given ovule.

1. (i) - Micropyle, (ii) - Nucellus, (iii) - Embryo Sac, (iv) - Chalaza, (v) - Funicle

2. (i) - Micropyle, (ii) - Endosperm, (iii) - Nucellus, (iv) - Funicle, (v) - Stalk

3. (i) - Integument, (ii) - Embryo Sac, (iii) - Nucellus, (iv) - Chalaza, (v) - Funicle

4. (i) - Apical Pore, (ii) - Endosperm, (iii) - Embryo Sac, (iv) - Hilum, (v) -Funicle

Q. In a fertilized ovule n, 2n and 3n conditions occur respectively in:

1. Antipodal, nucellus and endosperm
2. Megaspore mother cell, nucellus and endosperm
3. Egg, nucellus and microspore
4. Endosperm, micropyle and egg

Q. Which of the following statements is incorrect with respect to a typical anatropous ovule?

1. The stalk of the ovule is called funicle.
2. Micropyle is situated opposite to the basal part of the ovule.
3. Hilum is a small opening on the surface of an ovule.
4. The mass of cells enclosed within the integuments is called nucellus.

Q. Choose the correct option:

Column I	Column II
A. Funicle	I. Small opening of ovule
B. Integuments	II. Stalk of ovule
C. Chalaza	III. Protective envelope
D. Hilum	IV. Junction part of ovule and stalk
E. Micropyle	V. Base of ovule

1. A-II, B-III, C-V, D-IV, E-I
2. A-II, B-III, C-I, D-IV, E-V
3. A-III, B-IV, C-V, D-I, E-II
4. A-I, B-III, C-II, D-IV, E-V

Q. An ovule is attached to the placenta by a stalk like structure called .

1. hilum
2. funicle
3. chalaza
4. micropyle

Q. Nucellus is made up of which type of cells?

1. Parenchyma cells
2. Sclerenchyma cells
3. Collenchyma cells
4. None of these

Q. Persistent nucellus in the seed is known as

1. tegmen
2. chalaza
3. perisperm
4. hilum

Q. Which of the following types of ovules has the micropyle directed in the downward direction?

1. Orthotropous ovule
2. Circinotropous ovule
3. Hemianatropous ovule
4. Anatropous ovule

Q.

Match the following

$\begin{array}{cc}\text{Column-I}& \text{Column-II}\\ \text{(i) Micropyle}& \text{(a) Opposite to Micropyle}\\ \text{(ii) Chalaza}& \text{(b) Female gametophyte}\\ \text{(iii) Embryo Sac}& \text{(c) Pore of the ovule}\\ \text{(iv) Nucellus}& \text{(d) Nutritive tissue}\\ \text{(v) Ovule}& \text{(e) Integumented megasporangium}\end{array}$

1. (i)-(c), (ii)-(a), (iii)-(b), (iv)-(e), (v)-(d)

2. (i)-(a), (ii)-(c), (iii)-(d) , (iv)-(e), (v)-(b)

3. (i)-(c), (ii)-(a), (iii)-(b), (iv)-(d) , (v)-(e)

4. (i)-(b), (ii)-(d) , (iii)-(c), (iv)-(a), (v)-(e)

Q. Choose the correct option:

Column I	Column II
A. Funicle	I. Small opening of ovule
B. Integuments	II. Stalk of ovule
C. Chalaza	III. Protective envelope
D. Hilum	IV. Junction part of ovule and stalk
E. Micropyle	V. Base of ovule

1. A-II, B-III, C-V, D-IV, E-I
2. A-I, B-III, C-II, D-IV, E-V
3. A-II, B-III, C-I, D-IV, E-V
4. A-III, B-IV, C-V, D-I, E-II

Q.

The ovule of an angiosperm is technically equivalent to :

1. Megaspore mother cell

2. Megaspore

3. Megasporangium

4. Megasporophyll

Q.

Match the following

$\begin{array}{cc}\text{Column-I}& \text{Column-II}\\ \text{(i) Micropyle}& \text{(a) Opposite to Micropyle}\\ \text{(ii) Chalaza}& \text{(b) Female gametophyte}\\ \text{(iii) Embryo Sac}& \text{(c) Pore of the ovule}\\ \text{(iv) Nucellus}& \text{(d) Nutritive tissue}\\ \text{(v) Ovule}& \text{(e) Integumented megasporangium}\end{array}$

1. (i)-(c), (ii)-(a), (iii)-(b), (iv)-(e), (v)-(d)

2. (i)-(a), (ii)-(c), (iii)-(d) , (iv)-(e), (v)-(b)

3. (i)-(c), (ii)-(a), (iii)-(b), (iv)-(d) , (v)-(e)

4. (i)-(b), (ii)-(d) , (iii)-(c), (iv)-(a), (v)-(e)