what is the site for photosynthesis

In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts. Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll.

What are the sites of photosynthesis in eukaryotic cells?

Organelles, called plastids, are the main sites of photosynthesis in eukaryotic cells. Chloroplasts, as well as any other pigment containing cytoplasmic organelles that enables the harvesting and conversion of light and carbon dioxide into food and energy, are plastids.

Why leaves are the site for photosynthesis?

Leaf is considered to be the best site of Photosynthesis because in a plant the leaves have the maximum surface area and it can perform photosynthesis in a more efficient way as the rate of photosynthesis increases with the increase in the surface area available for photosynthesis.

Why are leaves called the site of photosynthesis?

Leaves are the main sites for photosynthesis: the process by which plants synthesize food. Most leaves are usually green, due to the presence of chlorophyll in the leaf cells.

Why leaf is the ideal site for photosynthesis?

Leaves are ideal for photosynthesis because they are usually broad and flat, giving plenty of surface area for light to be absorbed. They are also thin, which means diffusion of gases such as carbon dioxide can happen quickly.

What is the site of photosynthesis Class 9?

Chloroplast is the site of photosynthesis.

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 the site of light reaction in chloroplast?

thylakoid discs
The light reaction takes place in the thylakoid discs. There, water (H20) is oxidized, and oxygen (O2) is released. The electrons freed up from water are transfered to ATP and NADPH. The dark reaction occurs outside of the thylakoids.Aug 21, 2014

What is the site of photosynthesis in leaves of a plant write the chemical equation involved in photosynthesis?

The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2.

Where does photosynthesis take place Byjus?

In the chloroplast. Plants have specific structures unique to them known as chloroplasts. It contains chlorophyll – the most important pigment that drives the photosynthesis process.

What is the site of cellular respiration?

While most aerobic respiration (with oxygen) takes place in the cell’s mitochondria, and anaerobic respiration (without oxygen) takes place within the cell’s cytoplasm.

Are the site of photosynthesis answer?

Answer : Chloroplast are the sites of photosynthesis. … Chloroplast consists of thylakoids.

What are the sites of photosynthesis with diagram?

chloroplast is the organelle that is the site of photosynthesis. All green parts of a plant, including green stems and unripened fruit, have chloroplasts, but the leaves are the major sites of photosynthesis in most plants. There are about half a million chloroplasts per square millimeter of leaf surface.

What is photosynthesis and where does it occur?

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.

Where does Phase One of photosynthesis occur?

Stage One: Light Reactions

In the light-dependent process, which takes place in the grana, the stacked membrane structure within chloroplasts, the direct energy of light helps the plant to make molecules that carry energy for utilization in the dark phase of photosynthesis.

How do photosynthesis take place?

During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.

What are the parts of a chloroplast?

List out the different parts of Chloroplast?

  • Stroma.
  • Inner membrane.
  • Outer membrane.
  • Thylakoid membrane.
  • Intermembrane Space.

What is the correct sequence of events during photosynthesis?

The three events that occur during the process of photosynthesis are: (i) Absorption of light energy by chlorophyll. (ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen. (iii) Reduction of carbon dioxide to carbohydrates.

What are the part of a leaf?

Each leaf typically has a leaf blade ( lamina ), stipules, a midrib, and a margin. Some leaves have a petiole, which attaches the leaf to the stem; leaves that do not have petioles are directly attached to the plant stem and are called sessile leaves.

Which part of a leaf carries out photosynthesis?

In leaves, cells in the mesophyll (the tissue between the upper and lower epidermis) are uniquely suited to carry out photosynthesis on a large scale. This is due to their high concentration of chloroplasts, which are the sites of photosynthesis. More chloroplasts means more photosynthetic capability.

What are the parts of plants?

Different Parts of a Plant

  • Roots: Roots are the most important part of a plant as they are responsible for transferring the necessary nutrients to the plant. …
  • Stems: Stems are also support systems for the plants. …
  • Leaves: …
  • Flowers: …
  • Fruits: …
  • Seeds: …
  • In Summary.

What are the parts of a leaf and their functions?

Structure-Function Relationship: Leaves

Name of Structure Structure Function
Pith Parenchyma with vacuoles and plastids Storage, support
Plasmodesmata Openings between sieve tubes connecting cytoplasm Transport of sap
Spongy cells Rounded, widely spaced, near stomata Allow gas exchange
Suberin Waxy molecule Waterproofing

What’s in a leaf photosynthesis?

Oxygen & carbon dioxide, water vapor as well. … Water, carbon dioxide enter the leaf cells. Sunlight energy powers photosynthesis as it enters through the cuticle & upper epidermis. Once oxygen & sugar are made during photosynthesis they are removed and transported to different locations.

What are the external parts of a leaf and their functions?

Epidermis: It is the outermost layer and secretes a waxy substance called the cuticle. The cuticle helps retain water inside the leaf cells. The epidermis houses the guard cells which regulate the movement of water into and outside the cell. Guard cells do so by controlling the size of the pores also called stomata.

Does photosynthesis occur only in leaves?

Photosynthesis is a process which mainly occurs in leaves of all graeen plants. The plants have designed their leaf in such a way that it is able to trap solar radiation and effectively convert solar/light energy to chemical energy. … Some plants carry us photosynthesis in modified plant parts other then leaves.

What is photosynthesis in plants PDF?


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