Tag: botany

Questions Related to botany

Assign the seeds to their respective categories :
(a) Maize 
(b) Mustard
(c) Pea
(d) Endospermic
(e) Non endospermic

botany pollination, fertilization and development of endosperm and embryo fruits and seeds fruit and its type fertilization events

  1. a - d, b - d, c- e

  2. a - d, b - e, c- e

  3. a - e, b - e, c - d

  4. a - e, b - d, c - e

Show answer
Correct Option: B
Explanation:

Seeds, which store food materials in their cotyledons are called non- endospermic or exalbuminous seeds.(e.g., Gram, Pea, Bean, Almond, Groundnut).

Seeds, which store food materials in their endosperm are called endospermic or albuminous seeds. (e.g., Castor, Maize, Wheat, Barley, Grasses).

(a) Maize- endospermic

(b) Mustard- Non- endospermic

(c) Pea- Non endospermic.

So, the correct answer is'a-d, b-e, c-e'.

Food is stored in albuminous seed in

botany pollination, fertilization and development of endosperm and embryo fruits and seeds fruit and its type fertilization events

  1. Testa

  2. Cotyledon

  3. Endosperm

  4. Plumule

Show answer
Correct Option: C
Explanation:

A. Outer seed coat which ensures survival of seeds called testa.

B. Cotyledons reserve food material in exalbuminous seeds.
C. Endosperm reserve food in albuminous seeds.
D. Plumule gives rise to aerial shoot.
So, the correct answer is 'Endosperm'.

Seeds are non-endospermic in

botany pollination, fertilization and development of endosperm and embryo fruits and seeds fruit and its type fertilization events

  1. Gram

  2. Pea

  3. Bean

  4. All of the above

Show answer
Correct Option: D
Explanation:

Seeds, which store food materials in their cotyledons are called non- endospermic or exalbuminous seeds. (e,g., gram, pea, bean, almond, groundnut).

Seeds, which store food materials in their endosperm are called endospermic or albuminous seeds. (e.g., castor, maize, wheat, barley, grasses). So, the correct answer is 'All of the above'.

Endosperm is consumed by the developing embryo in ____________.

botany pollination, fertilization and development of endosperm and embryo fruits and seeds fruit and its type fertilization events

  1. Coconut

  2. Pea

  3. Maize

  4. Castor

Show answer
Correct Option: B
Explanation:

  • In most of the angiosperms, the endosperm by nature will be triploid. 
  • In some plants, the endosperm is completely consumed by the formation of zygote. 
  • In pea and groundnut, the endosperm is consumed by developing an embryo in the seed. 
  • The endosperm is completely absorbed by this growing embryo and hence food reserve gets stored in the cotyledons.
  • The correct option is B.

Albuminous seeds store their reserve food mainly in

botany pollination, fertilization and development of endosperm and embryo fruits and seeds fruit and its type fertilization events

  1. Cotyledons

  2. Hypocotyl

  3. Perisperm

  4. Endosperm

Show answer
Correct Option: D
Explanation:

Seeds, which store food materials in their cotyledons are called non- endospermic or exalbuminous seeds.

Seeds, which store food materials in their endosperm are called endospermic or albuminous seeds.

A. Cotyledons- It store food material in exalbuminous seed.

B. Hypocotyl- The portion of axis between the radicle and cotyledonary node is called hypocotyl.

C. It is a persistent nucellus.

D. Endosperm- It store food material in albuminous seed.

So, the correct answer is 'Endosperm'.

Select the seeds that have separate endosperm.
(a) Maize (b) Onion (c) Rice (d) Bean

botany pollination, fertilization and development of endosperm and embryo fruits and seeds fruit and its type fertilization events

  1. a, b and c

  2. a and b

  3. b and d

  4. a and c

Show answer
Correct Option: A
Explanation:

Seeds, which store food materials in their endosperm are called endospermic or albuminous seeds. (e.g., Castor, maize, wheat, barley, grasses, rice, onion).

Seeds, which store food materials in their cotyledons are called non- endospermic or exalbuminous seeds.(e.g., gram, pea, bean, almond, groundnut, mustard, sunflower).

So, the correct answer is 'a, b and c'.

Endosperm is completely consumed by the developing embryo in

botany pollination, fertilization and development of endosperm and embryo fruits and seeds fruit and its type fertilization events

  1. Pea, Bean and Groundnut

  2. Maize, Bean and Castor

  3. Maize, Pea and Groundnut

  4. Maize, Bean and Pea

Show answer
Correct Option: A
Explanation:
In some plants, the endosperm is completely consumed by the growing embryo. Such seeds in which no endosperm is left are called exalbuminous or non-endospermous seeds.
Examples are Pea, Bean, Groundnut.
Whereas the seeds, in which endosperm is not completely consumed by the growing embryo and is persistent, are called albuminous or endospermous seeds. Examples are Maize and Castor.
So, the correct answer is A.

Which of the following is an example of a seed in which the endosperm is not completely consumed by the developing embryo?

botany pollination, fertilization and development of endosperm and embryo fruits and seeds fruit and its type fertilization events

  1. Gram

  2. Bean

  3. Castor

  4. Pea

Show answer
Correct Option: C
Explanation:
Seeds in which endosperm is completely consumed by the growing embryo, are called exalbuminous or non endospermous seeds. Examples are Pea, Bean, Gram.
Seeds in which endosperm is not completely consumed by the growing embryo and is persistent, are called albuminous or endospermous seeds. Example is Castor.
So, the correct answer is C.

Perisperm differs from endosperm in.

botany pollination, fertilization and development of endosperm and embryo fruits and seeds fruit and its type fertilization events

  1. Its formation by fusion of secondary nucleus with several sperms

  2. Being a haploid tissue

  3. Having no reserve food

  4. Being a diploid tissue

Show answer
Correct Option: D

Consider the following statements:
1. The seed of pea is albuminous.
2. The fruit of peach is drupe.
Which of the statements given above is/are correct?

botany pollination, fertilization and development of endosperm and embryo fruits and seeds fruit and its type fertilization events

  1. 1 only

  2. 2 only

  3. Both 1 and 2

  4. Neither 1 nor 2

Show answer
Correct Option: A