Morphology of Flowering Plants — Page 9 | NEET Biology

Q81

Which one of the following statements is correct about coconut?

A In tomato, fruit is a capsule

B Seeds of orchids have oil-rich endosperm

C Placentation in primose is basal

D Flower of tulip is a modified shoot

Correct Answer

Option D

Solution

(d) Tulips are most popular and wildly grown flowers. Tulips are bulbs, possessing modified stems and leaves.

Q82

The coconut water and the edible part of coconut are equivalent to :

A Endosperm

B Endocarp

C Mesocarp

D Embryo

Correct Answer

Option A

Solution

(a) Liquid endosperm is the edible part of coconut.

Q83

An aggregate fruit is one which develops from:

A Multicarpellary syncarpous gynoecium

B Multicarpellary apocarpus gynoecium

C Complete inflorescence

D Multicarpellary superior ovary

Correct Answer

Option B

Solution

(b) Aggregate fruits (etaerio) develop from the multicarpellary apocarpous ovary.

Q84

Which one of the following statements is correct?

A The seed in grasses is not endospermic.

B Mango is a parthenocarpic fruit.

C A proteinaceous aleurone layer is present in maize grain.

D A sterile pistil is called a staminode.

Correct Answer

Option C

Solution

(c) Generally, monocotyledonous seeds (e.g., grasses) are endospermic.

In monocots, outer covering of endosperm separates the embryo by a proteinous layer called aleurone layer.

Q85

Placenta and pericarp are both edible portions in:

A Apple

B Banana

C Tomato

D Potato

Correct Answer

Option C

Solution

(c) In tomato the edible part is pericarp and placenta.

Q86

The wheat grain has an embryo with one, large, shield-shaped cotyledon known as:

A Coleorrhiza

B Scutellum

C Coleoptile

D Epiblast

Correct Answer

Option B

Solution

(b) Scutellum is large, shield shaped cotyledon that helps in the absorption of nutrients from endosperm during germination.

Q87

Which one of the following fruits is parthenocarpic?

A Apple

B Jackfruit

C Banana

D Brinjal

Correct Answer

Option C

Solution

(c) Parthenocarpic fruits (eg - banana) are produced without fertilization of ovule.

Q88

Coconut water from a tender coconut is

A Free nuclear endosperm

B Innermost layers of the seed coat

C Degenerated nucellus

D Immature emryo

Correct Answer

Option A

Solution

(a) Coconut water is the free nuclear endosperm which is used.

Q89

Cotyledon of maize grain is called

A plumule

B coleorhiza

C coleoptile

D scutellum

Correct Answer

Option D

Solution

(d) The cotyledons are known as seed leaves. The single shield-shaped cotyledon in grains known as scutellum.

Q90

The coconut water from tender coconut represents

A endocarp

B fleshy mesocarp

C free nuclear proembryo

D free nuclear endosperm

Correct Answer

Option D

Solution

(d) Coconut water is the clear liquid inside young green coconuts.

In early development, it serves as a suspension for the endosperm of the coconut during the nuclear phase of development.