Hydrilla Experiment - plant nutrition

Hydrilla Experiment – Reveals the Release of Oxygen during Photosynthesis

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 – Detailed Notes

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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How are Nutrients Replenished in the Soil?

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

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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The Pancreas – Structure, Function and Hormonal Secretions

The pancreas is a glandular organ located in the abdominal cavity. It has a complex structure consisting of various parts, including the head, body, and tail. Functionally, the pancreas plays a crucial role in both the digestive and endocrine systems. It produces and secretes digestive enzymes and juices, essential for the breakdown and absorption of nutrients. Additionally, the pancreas secretes important hormones like insulin and glucagon, which regulate blood sugar levels. The pancreatic structure, function, and hormonal secretions are vital for maintaining overall health and metabolic balance.

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Liver – Structure, Functions, Disorders, Regeneration

The liver, a vital organ known for its remarkable structure and function, comprises four lobes: right, left, caudate, and quadrate. It is supported by the falciform ligament and surrounded by Glisson’s capsule. The liver’s crucial components include the common hepatic duct, hepatic artery, hepatic portal vein, lobes, lobules, and the protective peritoneum. Its intricate structure enables it to perform vital functions in the body.

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Structure and functional units of the Liver

The liver, a vital organ in the human body, consists of numerous structural and functional units called Hepatic lobules. Each lobule consists of hepatic cells, sinusoids and a central vein. The hepatocytes in the lobules perform various metabolic functions, such as detoxification, protein synthesis and bile production. Understanding the intricate structure and function of the liver units is crucial to understanding liver physiology.

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Equation for Photosynthesis

Equation for Photosynthesis

Photosynthesis, the process by which plants convert sunlight into energy, can be summarised by the equation for photosynthesis. The chemical equation, 6CO2 + 6H2O + light energy → C6H12O6 + 6O2, represents the balanced reaction. It outlines the conversion of carbon dioxide and water into glucose and oxygen with the help of sunlight. This word equation simplifies the process for easier understanding.

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what is the importance of photosynthesis

Importance of Photosynthesis

Photosynthesis is vital and sustains life on earth. It produces oxygen, drives plant growth and forms the basis of the food chain. Animals depend on photosynthesis to produce oxygen and feed themselves. Plants thrive on energy production and nutrient synthesis. Humans benefit from food sources and renewable energy sources. Nature finds a balance as photosynthesis reduces carbon dioxide and promotes biodiversity.

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