Tag: know the plant world closely

Quizzes (11) Questions (112)

Questions Related to know the plant world closely

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'.

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

Biggest flower belongs to a plant which is?

  1. Partial stem parasite

  2. Partial root parasite

  3. Total stem parasite

  4. Total root parasite
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The biggest flower belongs to a plant called rafflesia arnoldii, which is a total root parasite because it cannot prepare its own food, thus takes food along with water and minerals from the roots of the host plant.

The correct option 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

Relation between bacteria and legume having nodulated roots is that of

  1. Host-parasitism

  2. Commensalism

  3. Symbiosis

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

The relation between the bacteria and legume having nodulated root is of symbiosis because it is a mutually beneficial relationship where the bacteria acquire food and accommodation, while the plant acquires nitrogen to make proteins.

So, the correct option is 'Symbiosis'.

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

Plants that grow over the branches of trees without contact with soil are

  1. Epiphytes

  2. Symbionts

  3. Saprophytes

  4. Parasites
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Epiphytes are symbiotic plants that grow on the surface of a plant and derives its moisture and nutrients from the air, rain or from debris accumulating around it. They usually grow over the branches of trees so that they can attain sunlight as they are short.

So, the correct option is 'Epiphytes'.