Photosynthesis helps to maintain a balance between oxygen and carbon dioxide in the atmosphere as it absorbs carbon dioxide and release oxygen. Sunlight is necessary for photosynthesis. Thus sun is the ultimate source of energy for all living organism.
What is photosynthesis for class 7th?
The process by which green plants make their own food (like glucose) from carbon dioxide and water by using sunlight energy (in the presence of chlorophyll) is called photosynthesis. ... The leaves of a plant can synthesise food because they contain a green pigment chlorophyll (which is necessary for making food).
What is importance of photosynthesis?
Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy. The importance of photosynthesis in our life is the oxygen it produces . Without photosynthesis there would be little to no oxygen on the planet.
What is the importance of photosynthesis in short?
It's not oxygen production. The primary function of photosynthesis is to convert solar energy into chemical energy and then store that chemical energy for future use . For the most part, the planet's living systems are powered by this process.
What is the significance of photosynthesis 5 marks?
– It helps in the synthesis of organic compounds from inorganic compounds . – It provides nutrition to the plants and thus helps in their growth and development. – Photosynthesis occurs in the chloroplast of the green plants which consists of a green color pigment called chlorophyll.
What are 3 things about photosynthesis?
Interesting Photosynthesis Facts:
In order for a plant to make its own food through the process of photosynthesis it requires three things: carbon dioxide, water, and sunlight . The veins in a plant that pull water from the soil are called xylem. Chlorophyll is the green pigment in a plant's leaves.
How does photosynthesis affect humans?
Through photosynthesis, humans can again breathe in the oxygen that was produced and survive . ... In a way, they are a cycle — plants help humans breathe by providing us with oxygen, and humans help plants “breathe” by providing them with carbon dioxide.
What is photosynthesis very short answer?
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
What are stomata Class 7?
Stomata are tiny pores or opening on the surface of a leaf . ... (i) Evaporation of water in plants in the form of vapour takes place through stomata during transpiration. (ii) Exchange of gases (oxygen and carbon dioxide) also takes place through stomata. Question7.
What is parasite in science class 7?
Parasites are organisms that depend upon another organism (host) for food and cause harmful effects or dieseases to the host . Examples: Cuscuta (Amarbel), mosquitoes and head lice. saprotrophs are orgnisms that obtain nutrition from dead and decaying organic matter. Examples: Fungi and some bacteria.
What is photosynthesis explain with diagram?
photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy . During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Why are plants important to humans?
Plants are really important for the planet and for all living things. Plants absorb carbon dioxide and release oxygen from their leaves , which humans and other animals need to breathe. Living things need plants to live – they eat them and live in them. Plants help to clean water too.
What occurs in photosynthesis?
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen . ... Then, via respiration processes, cells use oxygen and glucose to synthesize energy-rich carrier molecules, such as ATP, and carbon dioxide is produced as a waste product.
What is the significance of photosynthesis in ocean?
Phytoplankton, such as algae, are the plants that make photosynthesis happen in the ocean. These tiny plants live on the surface of the water where they collect their energy from the sun and use it along with nutrients in the water to grow and feed ocean life .
What is photosynthesis in your own words?
The definition of photosynthesis is the process through which plants use water and carbon dioxide to create their food , grow and release excess oxygen into the air. ... An example of photosynthesis is how plants convert sugar and energy from water, air and sunlight into energy to grow.
What are the importance of photosynthesis Class 10?
Significance of Photosynthesis:
Green plants are the main producers of food in the ecosystem . All other organisms directly or indirectly depend on green plants for food. The process of photosynthesis also helps in maintaining the balance of carbon dioxide and oxygen in the air.
