Class 7 Science Chapter 1 Quiz: Nutrition in Plants Flashcards

What is the primary role of chlorophyll in the process of photosynthesis?

What differentiates partial parasites from total parasites in terms of obtaining nourishment?

What characterizes saprophytic organisms in terms of their diet preferences?

How do insectivorous plants primarily obtain their nutrition?

What is the main objective of Class 7 Science Chapter 1 notes regarding nutrition in plants?

How does symbiosis differ from parasitism in terms of the nutritional relationship between organisms?

What is the primary purpose of revision notes for Class 7 Science Chapter 1?

How do green plants produce their own food?

What is the term for the process by which an organism consumes food and how the body processes it?

What is the term for the components of food that give the body nutrition?

What type of organisms are green plants?

What is the purpose of Maths NCERT Solutions Class 7?

Nutrition in Plants

Photosynthesis is the process by which green plants prepare their own food using chlorophyll, carbon dioxide, water, and sunlight.
Chlorophyll is essential for photosynthesis to occur, and it helps store solar energy in the form of food in the leaves.
During photosynthesis, plants produce complex chemical compounds such as sugars and oxygen.
Oxygen is created during photosynthesis, which is essential for the survival of living species.

Types of Nutrition

Autotrophic organisms, such as green plants, produce their own food through photosynthesis.
Heterotrophic organisms, including plants and animals, rely on others for their nutrition.
Saprotrophs, such as fungi, obtain their food from dead and decaying plant and animal matter.
Parasitic plants, such as Cuscuta, obtain their food by feeding on another plant (host).
Total parasites, like mistletoe, rely entirely on the host for nourishment, whereas partial parasites, like the painted cup, obtain some of their nutrients from the host.

Symbiotic Nutrition

Symbiosis is a type of nutrition in which two or more individuals collaborate to meet their nutritional needs.
An example of symbiosis is the relationship between algae and fungus, which forms lichens on tree trunks, where the fungus provides water to algae, and algae provide food to fungus.

Insectivorous Plants

Insectivorous plants, such as pitcher plants, bladderworts, and Venus flytraps, obtain their nutrition from both the soil and small insects.

Prepare for your exams with expertly crafted revision notes for CBSE Class 7 Science Chapter 1 - Nutrition in Plants. Access these notes online to thoroughly cover all aspects of the chapter and ace your exams.