Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

All forms of water that comes down on Earth, including rain, snow, hail etc. is known as ____________

  1. Calcification

  2. Fixation

  3. Precipitation

  4. Accumulation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Precipitation is the collective term for any form of water, liquid or solid, that falls from the atmosphere to the Earth's surface.

Multiple choice biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

Water enters atmosphere by

  1. Filtration

  2. Evaporation

  3. Evapo-transpiration

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

Water enters the atmosphere primarily through evaporation from water bodies and transpiration from plants. Together, these processes are known as evapotranspiration, but evaporation is the most fundamental term for water entering the atmosphere from the surface.

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

The meristem that is parallel to the longitudinal axis of the plant is ____________.

  1. Procambium

  2. Intercalary meristem

  3. Phellogen

  4. Apical meristem
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A. Procambium is a plant tissue that came from the apical meristem which made the vascular bundles i.e, the xylem and the phloem.

B. Intercalary meristems are residual apical meristems that exist at the nodes and internodes which increases the length of the plant.

C. Phellogen is also famous as cork cambium which is a lateral meristem. It increases the girth of the plant.

D. The apical meristem is placed at the root and shoots tip. It helps in the primary growth of a planet by increasing the length of the plant.

The lateral meristem which occurs on the lateral side of the longitudinal axis stem. It is parallel to the longitudinal axis and also responsible for increasing the girth of a plant (secondary growth).

So, the correct answer is 'Phellogen'.

The correct option is C.