Structure of a Monocot Seed

Q.

Examples of dicot plants are:

1. Pea

2. Rose

3. Neem

4. All of these

Q.

What is scutellum?

Q.

Dicots and monocots show similarity in embryogeny upto

1. Mature embryo stage

2. Heart-shaped embryo stage

3. Cordate embryo stage

4. Globular embryo stage

Q.

An example of monocotyledon seed

1. Barley

2. Gram

3. bean

4. pea

Q.

___ is the protective layer of radicle.

1. Scutellum

2. Endosperm

3. Coleorhiza

4. Coleoptile

Q.

The aleurone layer in maize grain is specially rich in _____.

1. starch

2. lipids

3. auxins

4. proteins

Q.

Justify the statement that the maize grain is a 'one-seeded fruit'.

Q.

Testa of a seed is produced from

1. Ovary wall

2. Outer integument of ovule

3. Funicle

4. Hilum

Q.

Fill in the blanks :
(a) In bean seeds, ___ grows faster and the seeds are brought___ ground.
(b) ___ is a protective layer of radicle and ___ protects the rolled plumule.
(c) A seed is protected by ___ and ___
(d) Seeds absorb water through ___ which also helps in the diffusion of respiratory gases.
(e) Rice, wheat, and maize are rich in ___ food.

Q.

Apomictic embryos in citrus arise from:

1. Synergids

2. Maternal sporophytic tissue in ovule

3. Antipodal cells

4. Diploid egg

Q.

Is grain a seed or a fruit

Q.

Match the columns

1	Bean seed	a	monocotyledonous
2	Maize Seed	b	future root
3	Plumule	c	Dicotyledonous
4	Radicle	d	Future shoot

1. 1- c, 2 - b, 3 - a, 4 - d

2. 1- c, 2 - a, 3 - b, 4 - d

3. 1- a, 2 - c, 3 - b, 4 - d

4. 1- c, 2 - a, 3 - d, 4 - b

Q.

A thin inner layer lying next to testa is called ___

1. Tegmen

2. Hilum

3. Micropyle

4. Seed coat

Q.

In one of the following, the seed coat is thick and hard. Which is it?

1. gram

2. maize

3. bean

4. coconut

Q.

The outermost layer of the endosperm is rich in protein and is called ___

Q.

Immunoglobulin most abundantly found in mother's milk is

1. IgE

2. IgD

3. IgA

4. IgM

Q.

Which of the following is the correct labelling of parts of a maize grain?

1. A: Aleurone layer, B: Coleorhiza, C: Coleoptile, D: Scutellum

2. A: Aleurone layer, B: Coleoptile, C: Coleorhiza, D: Scutellum

3. A: Coleorhiza, B: Coleoptile, C: Aleurone layer, D: Scutellum

4. A: Coleorhiza, B: Coleoptile, C: Scutellum, D: Aleurone layer

Q.

Which Alphabet Is A Vegetable?

Q.

Label the parts A, B, C, and D.

1. A. Endosperm, B. Epithelium, C. Aleurone layer, and D. Radicle.

2. A. Endosperm, B. Epithelium, C. Radicle, and D. Aleurone layer.

3. A. Endosperm, B.Aleurone layer, C. Epithelium, and D. Radicle.

4. A. Epithelium, B. Endosperm, C. Aleurone layer, and D. Radicle.

Q.

In some seeds, the cotyledon forms the first green leaves.

This condition is observed in

1. Maize

2. Pea

3. Rice

4. Bean

Q.

Hypanthodium inflorescence is found in

1. Coriander

2. Sunflower

3. Cauliflower

4. Fig

Q. Plumule is covered by protective sheath called

1. Scutellum
2. Coleoptile
3. Tegmen
4. Coleorrhiza

Q. Write true or false:
Ferns contain underground stem called rhizoids.

Q.

Match the substages of prophase I of first meiotic division listed in column I with the important events pertaining to respective stages given under column II; choose the answer which gives the correct combination of alphabets of the two columns:

$\begin{array}{cccc}& ColumnISubstagesofprophaseI& & ColumnIIImportantevents\\ A& Zygotene& p& Chromomeres\\ B& Pachytene& q& Bivalentsmigratetoperiphery\\ C& Diplotene& r& Terminalizationofchiasmatabegins\\ D& Diakinesis& s& Crossingover\\ & & t& Synapsis\end{array}$

1. A = t, B = s, C = r, D = q

2. A = p, B = s, C = r, D = q

3. A = s, B = p, C = r, D = q

4. A = s, B = t, C = r, D = q

Q.

Give a name of the biggest cell in human body. [ 1 MARK}

Q. Draw a well labelled diagram showing structure of L.S of Maize grain.

Q.

The reproductive part of an angiospermic plant is:

1. Stem

2. Leaf

3. Cones

4. Flower

Q. How many chromosomes are present in each of the following with respect to Maize plant respectively.
(a) Leaf epidermal cell
(b) Antipodal cell
(c) Endosperm cell
(d) Generative cell
(e) Egg cell
(f) Megaspore
(g) Microspore mother cell.

1. $10,20,10,10,10,20,30$
2. $20,10,10,10,20,30,10$
3. $20,10,30,10,10,10,20$
4. $30,10,20,10,20,10,10$

Q. Describe the structure of maize grain.

Q. Aleurone layer occurs in the peripheral region of

1. Endosperm
2. Coleoptile
3. Cotyledon
4. Coleorhiza