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 diversity in plants types of nutrition in plants different modes of nutrition in plants
Which of the following is a parasite?

  1. Lemna

  2. Arceuthobium

  3. Spirodella

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

Arceuthobium is the genus of parasitic plants. The host of this plants are members of Pinaceae and Cupressaceae. The stem is reduced and the leaves are minute structures. The flowers are sessile. Most of the parasitic plant is covered beneath the bark of the host plant. 

So, the correct answer is 'Arceuthobium'

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

The roots of ........... plant absorb moisture from the atmosphere.

  1. Rose

  2. Orchid

  3. Banyan

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

The aerial roots of plants absorb moisture from the air. These roots are seen in epiphytes which grow on the surface of other plants.  Epiphytic plants take nutrition from air, rain and surrounding organic debris, as they are not in contact with soil. Orchids are epiphytes which have aerial roots with a modified spongy layer of the epidermis called velamen which can absorb moisture from humid air. The cells of velamen absorb water during rains and store for future.

Option B is correct

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

Aldrovanda is

  1. Primary producer

  2. Secondary consumer

  3. Carnivorous plant

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Aldrovanda is a free-floating and rootless aquatic plant. It functions as a snap-trap carnivore under water. A common name for it is the waterwheel plant, because a single whorl of leaves, cut from a stem, is wheel-like. Snap traps are only found in one other carnivorous plant genus, Dionaea, which comprises the commonly known Venus flytrap. 

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

Nepenthes (Insectivorous pitcher plant) is 

  1. Producer

  2. Consumer

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Like all green plants, pitcher plants use their leaves to harness energy from the sun and make their own food; they use carbon dioxide (CO$ _{2}$) to make energy-rich carbohydrates. So, they are producers. 

However, it tends to grow on very wet soils that are very poor in nitrogen, an important element in the processes of life. Their leaves serve as traps that capture insects, secrete digestive enzymes that break down their prey, and absorb this juice into their tissues. These carnivorous traps are adaptations that allow these plants to survive and prosper in their harsh, nitrogen-poor environment. 
Hence, it is both a producer and a carnivore. 

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

Which statement is correct about saprophytes ?

  1. They do not possess chlorophyll

  2. They survive on other organisms

  3. They live on dead organism

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Saprophytes are the class of organism that have saprophytic mode of nutrition. They feed on dead living organism. They are assumed to have evolved from green plants but have lost their chlorophyll during the course of evolution.

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

Small herbaceous plants that grow on higher plants but do not obtain their nourishment from them are called 

  1. Insectivorous

  2. Epiphytes

  3. Saprophytes

  4. Mycorrhiza
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
A.Insectivorous plants - Plants, trap, kill and digest insects are called insectivourous plants. They grow in nitrogen
B.Epiphytic - Plants which grow on the branches of big trees for light and shelter. These plants are not connected to soil directly.
 deficient soils. So, to get nitrogen the kill and digest the insects.
C.Saprophytic - Organisms, grow on the dead bodies to get food.
D. Mycorrhiza - association of fungi with roots of higher plants
So the correct option is 'epiphytes'.
Multiple choice botany know the plant world closely diversity in plants types of nutrition in plants different modes of nutrition in plants

One of the following is a saprophyte.

  1. Monotropa$/$ Neottia

  2. Utricularia

  3. Dionaea

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

Monotropa (Indian pipe) and Neottia (bird's-nest orchid) are classic examples of myco-heterotrophic plants that function as saprophytes, obtaining nutrients from decaying organic matter via fungal intermediaries.

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.