Question

Что такое фотосинтез?

Answer 1

Фотосинтез-это образование в клетках зеленых растений и водорослей углеводов из углекислоты и воды под воздействием света, поглощаемого хлорофиллом растений

Answer 2

Обмен веществ у растений
из СО2 в О2 (углекислый газ в кислород)
вроде бы :b

Answer 3

What is Photosynthesis?

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose. It is a vital process for the survival of plants and is responsible for producing oxygen and organic compounds that serve as food for other organisms. Photosynthesis occurs in the chloroplasts of plant cells, specifically in the chlorophyll-containing structures called thylakoids.

How does Photosynthesis work?

Photosynthesis involves a series of complex reactions that take place in two main stages: the light-dependent reactions and the light-independent reactions (also known as the Calvin cycle).

Light-dependent reactions: These reactions occur in the thylakoid membranes of the chloroplasts. They require light energy and involve the conversion of light energy into chemical energy in the form of ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate). During this stage, water molecules are split, releasing oxygen as a byproduct. The energy from the light is used to generate ATP and NADPH, which are then used in the light-independent reactions.

Light-independent reactions (Calvin cycle): These reactions occur in the stroma of the chloroplasts. They do not require direct light energy but rely on the ATP and NADPH produced in the light-dependent reactions. In this stage, carbon dioxide (CO2) from the atmosphere is converted into glucose through a series of enzyme-catalyzed reactions. The glucose produced serves as a source of energy and building blocks for the plant.

Significance of Photosynthesis

Photosynthesis is crucial for the Earth's ecosystem and has several important implications:

1. Oxygen production: Photosynthesis is responsible for producing a significant portion of the Earth's oxygen. Through the process, plants release oxygen into the atmosphere, which is essential for the survival of aerobic organisms, including humans.

2. Food production: Photosynthesis is the primary source of energy for most living organisms. Plants use the glucose produced during photosynthesis as a source of energy for growth and development. Additionally, photosynthesis forms the basis of the food chain, as herbivores consume plants, and carnivores consume herbivores.

3. Carbon dioxide absorption: Photosynthesis plays a crucial role in mitigating climate change by absorbing carbon dioxide from the atmosphere. Plants take in carbon dioxide during photosynthesis and convert it into glucose, effectively reducing the concentration of this greenhouse gas in the atmosphere.

4. Energy source: Photosynthesis is the ultimate source of energy for all life on Earth. Fossil fuels, such as coal, oil, and natural gas, are derived from ancient plants and organisms that underwent photosynthesis millions of years ago. These fossil fuels are burned to release energy for various purposes, including electricity generation and transportation.

In summary, photosynthesis is a fundamental process that converts light energy into chemical energy, producing oxygen and glucose. It is essential for the survival of plants, the production of oxygen, the food chain, carbon dioxide absorption, and as the ultimate source of energy for life on Earth