In plants, photosynthesis takes place in chloroplasts , which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.
What is photosynthesis and where does it occur in a cell?
In terms of organisms, photosynthesis occurs in autotrophes that contain the green pigment chlorophyll. ... On the cellular level, the reactions for photosynthesis occur in organelles called chloroplasts (in eukaryotic cells). Blue-green algae (which are prokaryotic) carry-out the photosythesis reactions in the cytoplasm.
What is photosynthesis and when and where does it occur?
Photosynthesis, a plant's internal process that converts light energy into food, takes place mostly in the leaves of plants . Plants and trees utilize specialized structures to conduct the chemical reactions necessary to transform sunlight into chemicals the plant can use.
What is photosynthesis and where in a cell does it occur class 10th?
Photosynthesis takes place inside plant cells in small objects called chloroplasts . Chloroplasts contain a green substance called chlorophyll . This absorbs the light energy needed to make photosynthesis happen. ... Plants get carbon dioxide from the air through their leaves, and water from the ground through their roots.
What is photosynthesis and why does it occur?
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar .
What is the best definition of photosynthesis?
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.
Do plants take in oxygen?
Most folks have learned that plants take up carbon dioxide from the air (to be used in photosynthesis) and produce oxygen (as a by-product of that process), but less well known is that plants also need oxygen . ... So plants need to breathe — to exchange these gases between the outside and the inside of the organism.
How does photosynthesis start?
Photosynthesis begins when light strikes Photosystem I pigments and excites their electrons . The energy passes rapidly from molecule to molecule until it reaches a special chlorophyll molecule called P700, so named because it absorbs light in the red region of the spectrum at wavelengths of 700 nanometers.
Does photosynthesis occur in dark?
Plants need light to photosynthesize, but it doesn't necessarily have to be sunlight. If the correct type of artificial light is used, photosynthesis can happen at night with lights that contain blue and red wavelengths .
What are the 3 types of photosynthesis?
The three main types of photosynthesis are C 3 , C 4 , and CAM (crassulacean acid metabolism) .
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 is photosynthesis in biology class 9?
Photosynthesis is a physiological process by which plant cells containing chlorophyll produce food in the form of carbohydrates by using carbon dioxide, water and light energy. Oxygen is released as a by-product.
What is photosynthesis for 5th graders?
Photosynthesis is the big name for the process by which plants convert energy from sunlight into energy for food. This process also requires water and carbon dioxide. ... In this form the plants can use the glucose ,and water for food and release the oxygen back into the air for consumption by animals, including humans.
Where is carbon dioxide found in the body?
Carbon dioxide is made in our bodies as cells do their jobs. The lungs and respiratory system allow oxygen in the air to be taken into the body, while also letting the body get rid of carbon dioxide in the air breathed out.
What is the importance photosynthesis?
Photosynthesis is the process of plants transforming CO2 to O2 , which almost all living things need to live. So the importance of photosynthesis is that without it, there would be no life . Most likely not many plants either, since living beings produce CO2 which the plants need.
What do plants need to make their own food?
Plants “ eat” sunlight and carbon dioxide to produce their own food and food for the millions of other organisms dependent on them. A molecule, chlorophyll (Chl), is crucial for this process, since it absorbs sunlight.
