Structure of a Monocot Seed

Q.

Draw the labeled diagram of the following:

(i) Gram seed

(ii) V.S. of maize seed

Q. The polyembryony commonly occurs in

1. Tomato
2. Potato
3. Citrus
4. Turmeric

Q.

Is endosperm persistent in wheat, rice, and maize?

Q.

What is the difference between rai and mustard seeds?

Q.

What is trimerous flowers? Which group of plants has trimerous flowers?

Q.

Who discovered cytokinins?

Q.

Example for unicostate and multicostate venation

Q. Statement I: Seed is the basis of agriculture.
Statement II: Dehydration and dormancy of mature seed is crucial for storage of seeds.
Statement III: Seeds of rice and wheat remain viable for several years at normal condition.

1. Statements I and II are correct
2. Statements I and III are correct
3. Statements II and III are correct
4. All statements are correct

Q.

Which inflorescence is found in tulsi?

Q. The single cotyledon of maize grain is called

1. scutellum
2. plumule
3. coleorhiza
4. coleoptile

Q.

Which one of the following is considered important in the development of Seed Habit?

1. Dependant sporophyte

2. Free-living gametophyte

3. Haplontic life cycle

4. Heterospory

Q.

What are testa and tegmen in the seed?

Q.

Name the plant having reticulate vacation:

1. Musa

2. Oryza

3. Mangifera

4. Canna

Q. In fleshy fruits, the pericarp is__________.

1. absent
2. undifferentiated
3. differentiated into three layers
4. differentiated into five layers

Q.

Which type of venation is observed in banana?

1. Pinnate

2. Palmate

3. Reticulate

4. Parallel

Q. Scutellum is a/an:

1. Protective covering of radicle
2. protective covering of plumule
3. Endosperm of gymnosperms
4. Shield–shaped cotyledon

Q. In corn (Zea mays) (2n = 20), the number of chromosomes expected in the product of second karyokinesis following meiosis in the formation of an embryo sac will be :

1. 10
2. 20
3. 30
4. 40

Q. State the differences between the following:

(ii) Testa and tegmen

Q. Multicostate parallel type of venation is found in the leaves of

1. grasses and palms
2. banana and Canna
3. mango and peepal
4. castor and china rose

Q. Which of the following parts of the embryo contains radicle and plumule?

1. Cotyledon
2. Seed coat
3. Embryonal axis
4. Endosperm

Q.

Site of formation of RBS in infants

Q.

(i) Label the parts a, b and c in figure.
(ii) What is the function of part b?
(iii) Identify the given figure.

Q. Which among the following is the layer of endosperm of maize that is rich in protein?

1. Coleoptile
2. Coleorhiza
3. Aleurone layer
4. endosperm sheath

Q. Seed coat is derived from:

1. Pericarp
2. Epicarp
3. Integuments of ovule
4. Nucellus

Q. Which of the following is a difference between a monocotyledonous and a dicotyledonous plant?

1. Both are gymnosperms
2. Monocot have two cotyledons, whereas dicot have one cotyledons
3. Monocot have one cotyledons whereas dicot have two cotyledons
4. Monocot plants have one egg cell in embryo sac whereas dicot have two egg cell in embryo sac

Q. The outer most layer of maize endosperm is

1. Aleurone layer
2. Tapetum
3. Endothecium
4. Perisperm

Q.

Give one word for the following:
Outermost hard, protective covering of a seed.

Q.

Which part of the embryo give rise to shoot (stem and leaves)?

1. Plumule

2. Radicle

3. Seed coat

4. Cotyledons

Q.

Which part of embryo gives rise to root?

1. Plumule

2. Radicle

3. Seed coat

4. Cotyledons

Q. The aleurone layer in maize grain is present in the peripheral region of endosperm specially rich in

1. lipids
2. proteins
3. auxins
4. starch