- Science Questions What is photosynthesis? Green plants make sugar for growth by a process called photosynthesis, which means making things with light. Plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar. Where does photosynthesis happen?
What are facts about photosynthesis?
- In plants, photosynthesis usually occurs in the leaves. ...
- The process of photosynthesis is divided into two main parts: light dependent reactions and light independent or dark reactions. ...
- Chlorophyll and other carotenoids form what are called antenna complexes. ...
What is important about photosynthesis?
What is needed for Photosynthesis?
- Carbon dioxide from the air passes through small pores (holes) in the leaves. These pores are called stomata.
- Water is absorbed by the roots and passes through vessels in the stem on its way to the leaves.
- Sunlight is absorbed by a green chemical in the leaves.
What is the process of photosynthesis step by step?
What is the process of photosynthesis step by step? It is convenient to divide the photosynthetic process in plants into four stages, each occurring in a defined area of the chloroplast: (1) absorption of light, (2) electron transport leading to the reduction of NADP+ to NADPH, (3) generation of ATP, and (4) conversion of CO2 into carbohydrates ...
Why is photosynthesis an important process?
“Photosynthesis is an important process which allows organisms to produce food without the intervention of any other organisms. This specialized reaction, occurring only in autotrophs, has several key features that are fundamental for understanding the process as a whole.
1. What is Photosynthesis? Explain the process of photosynthesis.
Photosynthesis is a biological process utilized by all green plants to synthesize their own nutrients. The process of photosynthesis requires solar...
2. What is the significance of Photosynthesis?
During photosynthesis, oxygen gas is liberated out into the environment and is utilized by humans, animals and other living species during the proc...
3. List out the factors influencing Photosynthesis.
There are several factors that affect the rate of photosynthesis. Light intensity, water, soil pH, carbon dioxide concentration, temperature and ot...
4. What are the different stages of Photosynthesis?
Photosynthesis takes place in two stages, namely light-dependent reactions and light-independent reactions. Light-dependent reactions are also call...
5. What is the Calvin Cycle?
The Calvin cycle is also called the light-independent reaction. The complete process of the Calvin cycle takes place in the stroma of the chloropla...
6. Write down the Photosynthesis Equation.
6CO2 + 6H2O —> C6H12O6 + 6O2
Where does photosynthesis take place?
Photosynthesis takes place in chloroplast cells which contain a substance called chlorophyll. It is chlorophyll which gives plants their green colour. Chloroplasts are one of the organelles in a plant cell. We made a jelly model of plant cell to learn about organelles and plant cell structure. Sunlight is also needed to make chlorophyll.
How does lack of water affect photosynthesis?
Water – lack of water slows photosynthesis down. Temperature – photosynthesis works best at around 30 degrees Celsius. Levels of carbon dioxide – photosynthesis is faster if there is more carbon dioxide in the air. Plants make energy to grow by a process called respiration. This uses the sugar produced by photosynthesis and oxygen.
How are leaves adapted for photosynthesis?
Leaves are green as they contain lots of chlorophyll which absorbs sunlight.
What is the process of making sugar?
What is photosynthesis? Green plants make sugar for growth by a process called photosynthesis, which means making things with light. Plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
What is the pigment that absorbs energy from blue and red light waves?
Chlorophyll is a green pigment which absorbs energy from blue and red light waves and reflects green light waves which is why plants look green! Chlorophyll is found in an organelle called a chloroplast. This is where photosynthesis occurs.
What Is Photosynthesis in Biology?
The word “ photosynthesis ” is derived from the Greek words phōs (pronounced: “fos”) and σύνθεσις (pronounced: “synthesis “)Phōs means “light” and σύνθεσις means, “combining together.” This means “ combining together with the help of light .”
What is the process of photosynthesis?
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities . The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.
What is the organelle that converts carbon dioxide and water into glucose and oxygen?
Leaves contain microscopic cellular organelles known as chloroplasts.
How does chlorophyll absorb light energy?
Chlorophyll absorbs the light energy from the sun to split water molecules into hydrogen and oxygen. The hydrogen from water molecules and carbon dioxide absorbed from the air are used in the production of glucose. Furthermore, oxygen is liberated out into the atmosphere through the leaves as a waste product.
Where is chlorophyll found?
Chlorophyll is a green pigment found in the chloroplasts of the plant cell and in the mesosomes of cyanobacteria. This green colour pigment plays a vital role in the process of photosynthesis by permitting plants to absorb energy from sunlight. Chlorophyll is a mixture of chlorophyll- a and chlorophyll- b.
Where does light energy come from in photosynthesis?
Light energy is absorbed by chlorophyll molecules whereas carbon dioxide and oxygen enter through the tiny pores of stomata located in the epidermis of leaves. Another by-product of photosynthesis is sugars such as glucose and fructose. These sugars are then sent to the roots, stems, leaves, fruits, flowers and seeds.
Why is photosynthesis important?
Photosynthesis is essential for the existence of all life on earth. It serves a crucial role in the food chain – the plants create their food using this process, thereby, forming the primary producers.
Where does photosynthesis occur?
Photosynthesis occurs in the green tissue of plants. This is primarily in the leaves, although photosynthesis also occurs in stems. Roots aren't exposed to light, so there's no point for a plant to put chlorophyll in them.
How can we increase the rate of photosynthesis?
In order to increase the rate of photosynthesis, you need to supply more of the starting materials, which are carbon dioxide, water, and sunlight. Decreasing the exposure to light by diminishing its intensity or duration slows photosynthesis. 5.
Why does chlorophyll look green?
Chlorophyll appears green because it reflects back that color toward your eyes. It actually absorbs blue and red the best. However, most photosynthetic organisms also contain other pigment molecules that can utilize other wavelengths of light.
Can you get a perfect score on the photosynthesis quiz?
You didn't get a perfect score on the quiz, but now you should have a better understanding of the basic principle of photosynthesis, which organisms can perform it, and where it occurs in cells. The photosynthesis study guide can walk you through the details if you need to review the concepts.