Tag: habit of plants

Questions Related to habit of plants

The family boranthaceae is characterized by.

  1. Ruminate endosperm

  2. Nuclear endosperm

  3. Composite endosperm

  4. Helobial endosperm


Correct Option: A

Match List I with List II and select the correct answer.

List-I List-II
a. Asafoetida $1$. Iridaceae
b. Cinnamon $2$. Lauraceae
c. Saffron $3$. Umbellifeme
d. Turmeric $4$. Zingiberaceae
  1. A-$2$, B-$3$, C-$4$, D-$1$

  2. A-$3$, B-$2$, C-$1$, D-$4$

  3. A-$2$, B-$3$, C-$1$, D-$4$

  4. A-$3$, B-$2$, C-$4$, D-$1$


Correct Option: A

The figures belongs to.

  1. Pentoxyleae

  2. Bennettitales

  3. Cordials

  4. Glossoptericlales


Correct Option: A

Which of the following tree does not grow fast?

  1. Eucalyptus

  2. Gulmahor

  3. Asopalav

  4. Rose apple (jambu)


Correct Option: C
Explanation:

Asopalav is the common name of the tree Polyalthia longifolia. It is also called as false ashok due to its leaf shape. Among the given plants it takes longest time to grow about 10 years.

Assertion : Auxins promote apical dominance by suppressing the activity pf lateral buds.

Reason : In moriculture, periodic pruning of shoot tips is done to make mulberry plants bushy.

  1. If both the assertion and reason are true and the reason is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion

  3. If the assertion is true but the reaon is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true


Correct Option: A
Explanation:

Auxin is produced by shoot tip and acts as a growth promoter for apical bud and inhibit the growth of lateral buds. When a terminal bud is removed, the nearest axillary buds begin to grow and the plant branches rapidly. In case of mulberry plants, pruning is done to remove apical dominance and causes more branching of the main body of the plant.

Pneumatophores are common in?

  1. Alpine plants

  2. Heliophytes

  3. Hygrophytes

  4. Mangroves


Correct Option: A

Read names of the following plants
(i) Nicotiana tobacum
(ii) Candytuft
(iii) Brinjal
(iv) Zinnia
(v) Capsicum
Which of these belong to the family Solanaceae?

  1. (i), (ii) and (iii)

  2. (i), (ii) and (v)

  3. (i), (ii), (iii) and (v)

  4. (i), (iii), (v)


Correct Option: C
Explanation:

Only Nicotiana tobacum, Brinjal, and Capsicum belong to the family Solanaceae.

So, the correct option is '(i), (iii), (v)'.

If a biologist is to nomenclate a similar species, he will study.

  1. Syntype

  2. Isotype

  3. Neotype

  4. Paratype


Correct Option: B
Explanation:

Isotype (in plant scientific classification) A plant example that is a copy of or fundamentally the same as the sort example and can be utilized as a source of perspective example if the sort example is lost.

So, the correct option is 'Isotype'.

Join properly Column-I and Column-II.

Column-I Column-II
(a) Henking $(1)$ Study of chromosomes in plants
(b) Bridges $(2)$ Environmental effect of sex determination
(c) Baltzer $(3)$ X-body
(d) Allen $(4)$ Law of genetic balance
  1. a-$4$, b-$3$, c-$2$, d-$1$

  2. a-$3$, b-$2$, c-$4$, d-$1$

  3. a-$3$, b-$4$, c-$2$, d-$1$

  4. a-$1$, b-$2$, c-$3$, d-$4$


Correct Option: A

Which one of the following plant's nomenclature is autonym also?

  1. Rattus rattus

  2. Acacia nilotica indica

  3. Brassica oleracea capitata

  4. Acacia nilotica nilotica


Correct Option: B
Explanation:

An intraspecific name in which the species epithet is repeated is called autonym.

Acaccia is a perennial tree and also called as Babul, kikar, and prickly acacia.
So, the correct option is 'Acacia nilotica indica'.