Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

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

Morphologically the white fluffy edible mass in maize is 

  1. Seed coat

  2. Endosperm

  3. Perisperm

  4. Seed
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The monocot plants are known for the presence of the embryo and edible endosperm in the seed. The endosperm is large, whitish and fluffy in the case of the maize. The endosperm of the maize is considered as edible which is used for the production of popcorn. The endosperm swells and comes out to form the popcorn which is highly nutritious.

Thus, the correct answer is option B. 

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

A dicot having exalbuminous seed is

  1. Pea

  2. Castor

  3. Bean

  4. Gram
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The seed which store food material in cotyledons are called exalbuminous seed.

A. Pea-exalbuminous  seed.
B. Castor- albuminous  seed.
C. Bean- albuminous  seed.
D. Gram- albuminous  seed.
So, the correct answer is 'Pea'.

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

In exalbuminous seed, the food is generally stored in

  1. Endosperm initially but hypocotyl later on.

  2. Cotyledons

  3. Endosperm from the beginning

  4. Testa
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

1. Seed store reserve food for the use of embryo at the time of germination in their cotyledons or in endosperm.

2. The seeds, which store food materials in their cotyledons are called non- endospermic or exalbuminous seeds( e.g., Gram, Pea).
3. The seeds, which store food materials in endosperm are called  endospermic or albuminous seeds( e.g., Castor, Maize).
4. Testa- The outer coat of seed is called testa.
So, the correct answer is 'Cotyledons'.

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

In exalbuminous seeds, there is :

  1. Non formation of endosperm

  2. Abundant formation of endosperm

  3. Abundant protein

  4. Consumption of endosperm during development of speed
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Seed store reserve food for the use of embryo at the time of germination in their cotyledons or in endosperm.

The seeds, which store food materials in their cotyledons are called non- endospermic or exalbuminous seeds( e.g., Gram, Pea).
The seeds, which store food materials in endosperm are called  endospermic or albuminous seeds( e.g., Castor, Maize).
So, the correct answer is 'Consumption of endosperm during development of embryo'.

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

Which one is monocot albuminous seed?

  1. Maize

  2. Wheat

  3. Rice

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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).

Monocot seed- one cotyledon.

Dicot seed- Two cotyledons.

A. Maize- Monocot albuminous seed.

B. Wheat- Monocot albuminous seed.

C. Rice- Monocot albuminous seed.

So, the correct answer is 'All of the above'.

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

Aleurone layer takes part in

  1. Protein of delicate embryo

  2. Enzyme synthesis

  3. Transfer of food to cotyledons

  4. Transfer of food from cotyledons to embryo tips
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In monocotyledonous endospermic seed, endosperm is surrounded by a special one- cell thick layer, called aleurone layer. Its main function is to nourish the embryo enclosed in the seed.It is protein rich coat formed by the outermost layer of endospermic cells. It actively secretes few enzymes which help in the process of seed germination.
So, the correct answer is 'Enzyme Synthesis'.

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

Non-albuminous seeds occur in

  1. Maize

  2. Wheat

  3. Rice

  4. <p>Vallisneria</p>
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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

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

Vallisneria is a genus of freshwater aquatic plant, commonly called eelgrass, tape grass or vallis.  It has a non albuminous seed.

So, the correct answer is 'Vallisneria'.

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

Seed of castor is

  1. Non-endospermic exalbuminous

  2. Endospermic albuminous

  3. Endospermic exalbuminous

  4. Non-endospermic albuminous
Reveal answer Fill a bubble to check yourself
B Correct answer
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 'Endospermic albuminous'.