Structure of Monocot Embryo

Q. Find out whether the endosperm is persistent in cereals – wheat, rice and maize?

Q.

The best example of polyembryony is __________

1. Mango

2. Citrus

3. Capsicum

4. Cocos

Q.

In monocot embryo radicle is enclosed in coleorhiza and plumule is enclosed in coleoptile

1. True

2. False

Q. The single cotyledon present in grass embryo is called .

1. coleoptile
2. coleorrhiza
3. scutellum
4. hypophysis

Q. Given below is the image of a typical dicotyledonous embryo. Identify A and B in the given image.

1. A- hypocotyl, B- epicotyl
2. A- radicle, B- plumule
3. A- plumule, B- radicle
4. A- epicotyl, B- hypocotyl

Q. The wheat grain has an embryo with one large, shield shaped cotyledon known as

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

Q. Select the incorrect statements.
A. Endosperm is formed as a result of syngamy.
B. In dicotyledonous embryo the root tip is covered with a root cap.
C. In monocotyledonous embryo radicle and root cap are enclosed in an sheath called coleoptile.
D. The cotyledon of grasses is known as scutellum.

1. C and D
2. A and C
3. B and D
4. A and B

Q.

Complete the following analogy.
Maize : Hypogeal :: Bean: _____.

Q. In which of the following plants endosperm is completely used up by developing embryo

1. Pea
2. Castor
3. Coconut
4. Mango

Q. Shield shaped structure is Monocot embryo is

1. Coleorhiza
2. Scutellum
3. Calyptra
4. Coleoptile

Q. The protective sheath called coleoptile covers ________.

1. plumule of dicots
2. radicle of dicots
3. plumule of monocots
4. radicle of monocots

Q. In albuminous seeds, the food is mostly stored in

1. Cotyledons
2. Endosperm
3. Testa
4. Plumule

Q. Grain of Maize is

1. Seed
2. Bud of flower
3. Fruit
4. Neither seed nor fruit

Q. The remnants of nucellus present in the seed constitute

1. Endosperm
2. Perisperm
3. Aril
4. Endocarp

Q.

Epiblast present in certain monocot embryo represents

(a) rudimentary leaves (b) mesocotyl (c) scutellum (d) second cotyledon

The answer for this question is given as (d) but in monocots there is only one cotyledon, then what is second cotyledon?

Q. Trace the development of polyploidal call that is formed after double fretilisation in a non-albuminous seed and albuminous seed.

Q. Assertion :Maize is an albuminous seed. Reason: It's endosperm is completely absorb by its growing embryo.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Non-endospermous seed is:

1. Bean
2. All of these
3. Pea
4. Gram