Month: July 2023

Hydrilla Experiment - plant nutrition
Biology / Biology Concepts / Chapter 1 - Nutrition in Plants / Class 10 / Class 12 / Class 7 / nutrition / Respiration / Science / Science Facts / Uncategorized

Hydrilla Experiment – Reveals the Release of Oxygen during Photosynthesis

- by Jaishree Gorane - 1 Comment

The Hydrilla experiment demonstrates photosynthesis by observing oxygen bubble production under varied light conditions. Using Hydrilla, water, sodium bicarbonate, and light, we can visually see photosynthesis rates through bubble count, highlighting the process’s dependency on light and CO₂.

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Nutrition in Plants Class 7 explained
Chapter 1 - Nutrition in Plants / Class 7 / Notes / Notes / Notes / Science / Uncategorized

Chapter 1- Nutrition in Plants -Class 7 – Detailed Notes

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Nutrition in plants encompasses various processes, including photosynthesis, where chlorophyll in leaves captures sunlight to convert carbon dioxide and water into glucose and oxygen. Stomata, tiny openings on leaves, facilitate gas exchange. Other modes of nutrition include parasitic plants, insectivorous plants that capture and digest prey, and saprotrophic nutrition involving decomposers. Symbiotic relationships, like with Rhizobium bacteria, aid nutrient replenishment in the soil.

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Chapter 1 - Nutrition in Plants / Class 7 / NCERT Long Question Answers / Question And Answer / Science

How are Nutrients Replenished in the Soil?

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Nutrients in the soil are replenished through the roles of decomposers and nitrogen fixation. Decomposers break down organic matter, releasing inorganic nutrients back into the soil. Nitrogen fixation converts atmospheric nitrogen into a usable form for plants. Conservation methods like organic farming, crop rotation, and conservation tillage help maintain soil fertility. These processes sustain nutrient replenishment and support sustainable agriculture.

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Biology / Biology Concepts / Class 10 / Class 11 / Class 12 / nutrition / Science / Science Facts

Small Intestine- Structure , Functions and Movement in the Digestive System

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The small intestine of the human digestive system – parts (duodenum, jejunum and ileum), its functions (digestion, absorption) and its structure (villi, layers). Learn about its role in the absorption of nutrients, including vitamins and minerals, how peristalsis drives food and the effects of infections. The anatomy of the small intestine, its functions and its importance to the digestive system

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