Tag: different modes of nutrition in plants

Questions Related to different modes of nutrition in plants

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

Which of the following groups contains uricotelic animals only ?

  1. Reptiles, birds, land snails, insects

  2. Reptiles, birds, land snails, aquatic insects

  3. Amphibians, birds, land snails, insects

  4. Amphibians, reptiles, birds, insects

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

Reptiles, birds land snails and insects excrete nitrogenous wastes as uric acid in the form of white paste and thus they are called uricotelic animals. 

So, the correct answer is (A).

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

Amarbel is an example of

  1. Autotroph

  2. Parasite

  3. Saprotroph

  4. Host

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Amarbel is an example of the parasite. Cuscuta reflexa is the botanical name for the amarbel. It is also known as giant dodder. It grows in a creative manner over host plants and this species has the capability of producing numerous branches within a short period of time. Since it is a parasitic plant, so it depends on host plants for food. Over haustoria, amarbel provide communication with its host plants. Amarbel is widely used in the treatment for a headache, labour pain, bone fracture, fever and rheumatism. 

So, the correct answer is option B.

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

Organisms which obtain their food from non-living material environment are called

  1. Autotrophs

  2. Epiphytes

  3. Parasites

  4. Saprophytes

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Saprophytes are organisms that obtain their nutrients from dead and decaying organic matter, which is considered non-living material in an environmental context.

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

Balanophora$/$ Orobanche is a

  1. Total root parasite

  2. Partial root parasite

  3. Partial stem parasite

  4. Total stem parasite

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

Balanophora is a total root parasite because it sucks nutrients and water from the roots of host plants like cabbage etc for its survival. In turn, it causes harm to the host.

Thus the correct answer is 'Total root parasite'.

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

The smallest angiospermic$/$ dicot parasite is?

  1. Arceuthobium

  2. Wolffia

  3. Cassytha

  4. Rafflesia

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

A. Arceuthobium also called dwarf mistletoe, is a parasitic plant growing on pine etc. Its length is about 5mm-8mm. It is the smallest parasitic angiosperm known till date.

B. Wolffia is the smallest angiosperm about 2mm but it is not a parasite.
C. Cassytha is a parasitic climber about 2-5m in size.
D. Rafflesia is a total root parasite with the largest flower.
So, the correct answer is 'Arceuthobium'.

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

A partial parasite is the one which

  1. Absorbs water and mineral salts from host

  2. Absorbs only water from host

  3. Takes food from host only occasionally

  4. Lives on the host for space only

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

A plant which depends on its host for only water and nutrients, but not sugars is a partial parasite. They do not depend on the host for food as they are usually chlorophyllous, so they are able to photosynthesize. 

So, the correct option is 'Absorbs water and mineral salts from host'.

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

A rootless aquatic in which a portion of leaf is modified to form a bladder for catching small aquatic animals is?

  1. Dionaea

  2. Drosera

  3. Utricularia

  4. Nepenthes

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

Utricularia is also called as bladderwort because a part of the leaf is modified into a bladder like structure for catching small animals. It is a total root parasite because it is rootless and cannot prepare its own food.

Thus, the correct option is 'Utricularia'.

Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

Santalum album$/$ Sandal-wood Tree is?

  1. Partial root parasite

  2. Partial stem parasite

  3. Total stem parasite

  4. Total root parasite

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Santalum album is a partial root parasite, because it can photosynthesize its own food, but taps the roots of other species for water and inorganic nutrients.
Thus, the correct option is 'Partial root parasite'.
Multiple choice botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

Botanical name of Venus Fly Trap is?

  1. Aldrovanda

  2. Dionaea

  3. Utricularia

  4. Nepenthes

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A. Aldrovanda is the botanical name of the water wheel plant.

B. Dionaea is the botanical name of venus fly trap. In this plant, the leaves are modified into flaps which shut on irritated by the insect.
C. Utricularia is the botanical name of bladderwort.
D. Nepenthes is the botanical name for pitcher plant.
So, the correct answer is 'Dionaea'.