Tag: habit of plants

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Questions Related to habit of plants

Multiple choice biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

Multiple choice biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

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)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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

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

Multiple choice biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

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

  1. Syntype

  2. Isotype

  3. Neotype

  4. Paratype
Reveal answer Fill a bubble to check yourself
B Correct answer
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'.

Multiple choice biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

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-$4$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

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
Reveal answer Fill a bubble to check yourself
B Correct answer
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'.