Photosynthesis and respiration in plants

 Class 6th 

Shorts/Questions

Photosynthesis and respiration in plants


Q.1 Differentiate between the xylem and phloem.

Ans. Xylem transports water and minerals upward from roots to leaves, while phloem carries nutrients (mainly sugars) from leaves to other parts of the plant.

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Q.2 What is the important of photosynthesis in our daily life?

Ans. Photosynthesis is crucial for producing oxygen, vital for human and animal respiration. It provides the foundation of the food chain by synthesizing sugars, supporting all life. Additionally, it plays a key role in regulating the Earth's climate by absorbing carbon dioxide and mitigating the greenhouse effect.

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Q.3 What do mesophyll tissues do for plants?

Ans. Mesophyll tissues in plants are responsible for photosynthesis, where they capture sunlight and perform the process of converting carbon dioxide into sugars. They are crucial for the plant's energy production and overall growth.

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 Q.4 What is difference between photosynthesis and respiration?

Ans. Photosynthesis is the process by which plants convert sunlight into energy, while respiration is the process in which organisms release energy from food molecules.
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Q.5 Explain how organisms will die if there is no respiration in plants.
Ans. Without respiration in plants, organisms would lack essential oxygen, leading to their death due to the inability to carry out aerobic cellular processes.
Long Questions
Q. 1 Explain the internal structure of a plant.
internal structure



Ans. A plant's internal structure comprises three main tissue types: dermal, vascular, and ground tissues. The dermal tissue forms the outer protective layer, the vascular tissue facilitates nutrient transport, and the ground tissue performs various functions, such as storage and support. Together, these tissues enable plants to grow, transport nutrients, and adapt to their environment.

Q.2 Define resiration. Explain its importance in our daily life.

Respiration is the biological process where cells extract energy from nutrients, typically involving the intake of oxygen and release of carbon dioxide. In daily life, respiration sustains human and animal life by providing energy for essential processes, including metabolism and cellular functions, ensuring survival and maintaining overall health.

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