Tag: phanerogams

Questions Related to phanerogams

All the following are the adaptations of land plants except

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Protection of the embryo from drying out

  2. Waxy cuticle on leaves to prevent drying out

  3. Waxy cuticle on roots to prevent drying out

  4. Vascular system (in most plants) to move water internally

Show answer
Correct Option: C
Explanation:
Land plants have the vascular system for the movement of water and food internally this includes xylem and phloem.
The embryo is protected from drying out by providing the membranes which help in protecting the embryo.
There is a waxy cuticle on the leaves and this acts as a barrier for the excessive water loss which happens due to transpiration and this prevents leave from drying.
There is no waxy cuticle on the roots as if there is a waxy cuticle on the root then it would be very difficult to absorb water.
So, the correct option is 'waxy cuticle on roots to prevent them from drying out.'

'Wheat' belongs to division ____

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Bryophyta

  2. Pteridophyta

  3. Gymnosperms

  4. Angiosperms

Show answer
Correct Option: D
Explanation:

Species of wheat belongs to genus Triticum. Wheat is a type of food crop. Wheat has seeds which as used as food to human beings. Angiosperms include seed containing plants.

So, the correct option is 'Angiosperms'.

The first true angiosperm evolved from an ancestor is

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Arceuthobium

  2. Gnetum

  3. Cycas

  4. Taxus

Show answer
Correct Option: B
Explanation:

According to Richard Y-wettstein (Gnetales-angiosperms theory), Gnetales and angiosperms are closely related to each other, because of morphological similarities in the flowers of Gnetum and pro-angiosperms and thus might have originated from common ancestors.

Double fertilization and triple fusion are characteristic of

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Spermatophyta

  2. Gymnosperms

  3. Pteridophyta

  4. Angiosperms

Show answer
Correct Option: D
Explanation:

The process in which both nuclei from the pollen tube fuse is referred to as double fertilization. This is perhaps the most characteristic single feature of angiosperms and is not shared with any other group. Gymnosperms, in sharp contrast, have a multicellular female gametophyte, that consists of many hundreds or even thousands of cells. Double fertilization does not take place in this case, and the female gametophyte develops into the food-storage tissue of the seed.

Therefore, the correct answer is option D.

Vessels and companian cells are found in

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Pteridophyte

  2. Gnetum

  3. Ephedra

  4. Angiosperm

Show answer
Correct Option: D
Explanation:

Angiosperms or flowering plants are those plants in which seeds are formed inside fruits and the sporophylls are organised into flowers. They are the most recently and highly evolved plants appeared on Earth about 130 million years ago. The plant body is differentiated into root, stem and leaves. At maturity the plants bear flowers, which produces fruits and seeds. The vascular tissues are arranged in the form of vascular bundles. Xylem contains vessels and phloem has sieve tubes and companion cells. 

Botanical name of Amla is ______________.

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Ocimum sanctum

  2. Phyllanthus emblica

  3. Saraca indica

  4. Ficus bengalensis

Show answer
Correct Option: B
Explanation:

Characteristics of monocot :-
1) Roots are adventitious
2) Embryo has single cotyledon
3) Pollens have single pore
4) Secondary growth is absent
5) Flower has parts in multiples of three
6) Leaf veins are parallel
7) Seeds possess one cotyledon
8) Vascular bundles appear to scatter through the stem cross-section
Botanical name of Amla is Phyllanthus emblica.

When we cut any of the gram seeds exactly at their centre transversely, we can find the parts separated in to two equal halves. By keeping this as a main feature, to which group of Plantae we can classify them in to?

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Angiospermic monocot

  2. Gymnosperm

  3. Angiospermic dicot

  4. Both A and C

Show answer
Correct Option: C
Explanation:

An angiospermic dicot seeds has a protective seed around it. It is made up of 2 cotyledons. The outer seed coat is called testa and inner seed coat is called tegmen. It's embryonic axis has 3 parts, plumule, radicle and hypocotyl.

So, option C is the correct answer.

Angiosperms have dominated the land flora primarily by their

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Power of adaptability to diverse habitats

  2. Nature of pollination

  3. Domestication by humans

  4. Large number of seeds

Show answer
Correct Option: A

Vessels are absent in angiosperm

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Magnolia

  2. Drimys

  3. Dillenia

  4. None of the above

Show answer
Correct Option: B

Which series includes ranales, parietales and malvales?

biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

  1. Calyciflorae

  2. Thalamiflorae

  3. Disciflorae

  4. Bicarpellatae

  5. Inferae

Show answer
Correct Option: B