Class 7 Exam > Class 7 Questions > How do parasitic plants obtain their food?a)T...
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How do parasitic plants obtain their food?
- a)Through photosynthesis
- b)By absorbing nutrients from the soil
- c)From other plants or animals
- d)By consuming other organisms
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
How do parasitic plants obtain their food?a)Through photosynthesisb)By...
Parasitic plants attach to the body surface of other plants to derive nutrition from them. The host plants from which the parasites absorb nutrients are harmed in the process. Q. Parasitic plants depend on other plants for nutrition.
What is the parasitic mode of obtaining food?
The parasite obtains nutrition directly from the body of the host and in turn harm the host. This type of nutrition comes under heterotrophic nutrition and in this interaction one organism (parasite) benefits while the other organism (host) gets affected.
How do parasitic plants feed?
Parasitic higher plants obtain water and nutrients from their hosts by producing and sinking into the vascular system of their host stems or roots food-absorbing organs called haustoria.
What is the parasitic mode of obtaining food?
The parasite obtains nutrition directly from the body of the host and in turn harm the host. This type of nutrition comes under heterotrophic nutrition and in this interaction one organism (parasite) benefits while the other organism (host) gets affected.
How do parasitic plants feed?
Parasitic higher plants obtain water and nutrients from their hosts by producing and sinking into the vascular system of their host stems or roots food-absorbing organs called haustoria.
Community Answer
How do parasitic plants obtain their food?a)Through photosynthesisb)By...
Parasitic Plants and Their Food Source
Parasitic plants are unique organisms that rely on other plants or animals for their nutrition instead of producing their own food through photosynthesis. They have evolved specialized structures and mechanisms to extract nutrients from their host organisms.
1. Introduction to Parasitic Plants
Parasitic plants are a type of plant that derives its nourishment from a host plant or animal. These plants have lost the ability to produce their own food through photosynthesis, which is the process of converting sunlight into energy. Instead, they have developed various strategies to obtain nutrients from their hosts.
2. How Parasitic Plants Obtain Their Food
Parasitic plants have adapted to obtain their food in different ways:
- Hemiparasites: Some parasitic plants, known as hemiparasites, are partially dependent on photosynthesis. They have green leaves and can produce some of their own food, but they also tap into the host plant's vascular system to extract additional nutrients.
- Holoparasites: Other parasitic plants, called holoparasites, have completely lost the ability to photosynthesize. These plants rely entirely on their host for all their nutritional needs.
3. Mechanisms of Nutrient Extraction
Parasitic plants employ various mechanisms to extract nutrients from their hosts:
- Root Modifications: Parasitic plants develop specialized root structures called haustoria. Haustoria penetrate the host plant's tissues and establish a connection between the parasite and the host's vascular system. Through this connection, the parasite can absorb water, minerals, and organic compounds from the host.
- Host Tissue Penetration: Some parasitic plants physically penetrate the host plant's tissues, allowing direct access to nutrients. These plants often produce enzymes or chemicals that help break down the host's cell walls, facilitating nutrient absorption.
4. Types of Hosts
Parasitic plants can parasitize a wide range of hosts:
- Plants: Many parasitic plants target other plants as their hosts. They may attach themselves to the host's stem, roots, or leaves.
- Animals: Some parasitic plants parasitize animals, such as fungi. These plants tap into the fungal networks and extract nutrients from them.
5. Examples of Parasitic Plants
There are several well-known examples of parasitic plants:
- Mistletoe: Mistletoe is a hemiparasitic plant that attaches itself to the branches of trees. It obtains water and minerals from the host tree but can also produce some of its own food through photosynthesis.
- Dodder: Dodder is a holoparasitic plant that lacks chlorophyll and cannot photosynthesize. It wraps itself around its host plant and forms haustoria to extract nutrients.
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How do parasitic plants obtain their food?a)Through photosynthesisb)By absorbing nutrients from the soilc)From other plants or animals d)By consuming other organismsCorrect answer is option 'C'. Can you explain this answer?
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How do parasitic plants obtain their food?a)Through photosynthesisb)By absorbing nutrients from the soilc)From other plants or animals d)By consuming other organismsCorrect answer is option 'C'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about How do parasitic plants obtain their food?a)Through photosynthesisb)By absorbing nutrients from the soilc)From other plants or animals d)By consuming other organismsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How do parasitic plants obtain their food?a)Through photosynthesisb)By absorbing nutrients from the soilc)From other plants or animals d)By consuming other organismsCorrect answer is option 'C'. Can you explain this answer?.
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