Tag: different modes of nutrition in plants

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

Which one of the following is a total parasite ?

  1. Nepenthes

  2. Rhozobium

  3. Cuscuta

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

A.Nepenthes - It is an insectivorous plant.

B.Rhizobium - Rod shaped, aerobic, Nitrogen fixing bacterium.
C.Cuscuta - complete stem parasite.
D.Lichens - Special type of plants formed by the association of algae and fungi.
So, the correct option is 'Cuscuta'

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

Which organism transforms complex organic compounds back into simple inorganic compound?

  1. Saprotrophs

  2. Consumers

  3. Producers

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

Saprotrophs, such as bacteria and fungi, are decomposers that break down organic matter from dead organisms into simpler inorganic substances. This process recycles nutrients back into the ecosystem.

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

Indian pipe plant are example of ______

  1. Autotrophic plant.

  2. Angiosperm

  3. Saprophyte

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

Saprophytes are the class of organism that have saprophytic mode of nutrition. They feed on dead living organism. Indian pipe plant :- it is not a fungus, it just looks like one. It is actually a flowering plant, and it is a member of the blueberry family.

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

When two gametes come together to form sporophyte, the sporphyte dies due to

  1. Genetic imcompatibility

  2. Hybrid sterility

  3. Sporophytic inviability

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

Sporophytic inviability refers to the failure of a zygote or embryo to develop into a viable sporophyte due to genetic or developmental incompatibility. The other terms are not standard biological classifications for this specific failure.

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

Nepenthes belongs to the category of

  1. Primary consumer

  2. Producer

  3. Secondary consumer

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nepenthes belongs to the category of producer and secondary consumer. It is also called as topical pitcher plant. It belongs to category of producer as it can synthesize its own food using solar energy. It belongs to secondary consumer because it is a carnivorous plant. It  preys the insects and derives nitrogen from it. Thus, the correct answer is 'Both B and C.'

Multiple choice botany through the alimentary canal nutrition and its types types of nutrition in plants different modes of nutrition in plants

An association of two species where both the partners derive mutual benefit from each other is known as

  1. Parasitism

  2. Symbiosis

  3. Commensalism

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

Mutualism or symbiosis is a mutually beneficial relationship between individuals of two different species. None of the two is capable of living separately. Mutualism and symbiosis are synonyms though symbiosis was formerly considered to be any interaction between two different organisms. Some workers also consider symbiosis to be mutualism, which involves close physical contact. Mutualism or symbiosis is generally considered to be obligatory e.g., nitrogen fixing Rhizobium bacteria living in root nodules of leguminous plants and mycorrhizae (fungus living in association with roots of higher plants like Gymnosperms).

Multiple choice botany through the alimentary canal nutrition and its types types of nutrition in plants different modes of nutrition in plants

Find the one that is not involved in symbiotic nutrition.

  1. Lichen

  2. Mycorrhiza

  3. Mucor

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

Mucor is fungi that are found in soil, digestive systems etc.

Rest three are involved in symbiosis. Lichens are the symbiotic association between algae and fungi where the algae provide nutrition and fungi provides a place to live and protection.
Mycorrhiza is the symbiotic association in between fungi and roots of higher plants. eg. orchids and pine.
Rhizobium is a nitrogen-fixing bacteria that is in association with the root nodules of the legumes plants.
So, the correct option is 'Mucor'

Multiple choice botany through the alimentary canal nutrition and its types types of nutrition in plants different modes of nutrition in plants

The special root-like structure of plant parasites in cuscuta and viscum are called 

  1. Rhizoids

  2. Hasutoria

  3. Hyphae

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

The correct spelling is 'Haustoria' - these are specialized root-like structures parasitic plants like Cuscuta (dodder) and Viscum (mistletoe) use to penetrate host tissues and extract nutrients. Rhizoids are in primitive plants, hyphae are fungal threads, and stolons are running stems.