Nutrition and Photosynthesis Concepts

The video tutorial covers the concept of nutrition, explaining how living organisms obtain and utilize food for energy. It distinguishes between autotrophic and heterotrophic nutrition, detailing the process of photosynthesis in plants and various types of heterotrophic nutrition, such as parasitic, saprophytic, and symbiotic relationships. The lesson concludes with a summary of key points and learning objectives.

What is the primary source of energy for living organisms?

• Oxygen

• Water

• Sunlight

• Food

Which type of nutrition involves organisms making their own food?

• Heterotrophic

• Autotrophic

• Saprophytic

• Parasitic

What is the role of chlorophyll in photosynthesis?

• Stores carbohydrates

• Absorbs sunlight

• Releases oxygen

• Absorbs water

Which of the following is a product of photosynthesis?

• Nitrogen

• Oxygen

• Carbon dioxide

• Minerals

How do parasitic plants obtain their nutrients?

• From the soil

• By trapping insects

• Through photosynthesis

• From other plants

What type of nutrition do fungi exhibit?

• Saprophytic

• Symbiotic

• Parasitic

• Autotrophic

Which bacteria help plants in nitrogen fixation?

• E. coli

• Rhizobium

• Lactobacillus

• Staphylococcus

What is the relationship between Rhizobium and legumes?

• Parasitic

• Symbiotic

• Competitive

• Predatory

Which type of plant traps insects to fulfill its nitrogen requirement?

• Insectivorous

• Parasitic

• Symbiotic

• Saprophytic

What is the significance of photosynthesis in the ecosystem?

• It decreases solar energy

• It links the physical and biological world

• It consumes oxygen

• It produces carbon dioxide