Table of Contents
- 1 How plants prepare their own food is it a chemical or a physical change?
- 2 Why is a plant growing a physical change?
- 3 Why is photosynthesis a physical change?
- 4 Is photosynthesis a physical or a chemical change give reason to support your answer?
- 5 Is digestion of food a physical change?
- 6 Is plants physical or chemical change?
- 7 How do plants use the glucose they make?
- 8 How do plants make their own food by photosynthesis?
- 9 How do plants convert light energy into food energy?
How plants prepare their own food is it a chemical or a physical change?
Photosynthesis
Photosynthesis is a chemical reaction. Photosynthesis is a process by which green plants prepare their own food with the help of carbon dioxide and water in the presence of sunlight and chlorophyll to get oxygen and carbohydrates. In this process plants convert light energy into chemical energy.
Why is a plant growing a physical change?
Growth of plants is chemical change or physical change. So the reason for growth of plants is chemical change where the plant changes its shape ,size and etc but it does not produce any new substance while chemical change produces new substances to the plant.
Why is photosynthesis a physical change?
The photosynthesis is the process used by plants to produce their food. In this process light energy is converted into chemical energy. As a new product is formed in this process, therefore photosynthesis is a chemical change.
What is a physical change of a plant?
As flowers bloom, their colors change. The overall appearance matures until the plant dies. There is a physical change as the plants are growing. There is also chemical changes happening during the growth process.
Are green plants that manufacture food in the form of glucose by the process of photosynthesis?
Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel.
Is photosynthesis a physical or a chemical change give reason to support your answer?
Photosynthesis is the process through which plants convert light energy into chemical energy. Here is the chemical reaction involved: As we can see, water and carbon dioxide combine to form glucose and oxygen. Since new chemical species are formed, photosynthesis is clearly a chemical change.
Is digestion of food a physical change?
Digestion of food is a chemical change because the large macromolecules are broken down into simpler molecules by the enzymes present in the stomach and the intestines. It is a chemical change because it involves various chemical reactions. Hence the answer is chemical change.
Is plants physical or chemical change?
growth of plant is a chemical change because it involves photosynthesis reaction , and many others reactions too.
Is digestion a physical change?
Food digestion is considered a chemical change because enzymes in the stomach and intestines break down large macromolecules into simpler molecules so that the body can more easily absorb the food. In physical digestion, your body mechanically breaks down food, grinding or smashing it into smaller pieces.
Why is cooking of food considered a chemical change?
Cooking of food is a chemical change as it involves the change in the composition of the food. After cooking, the raw ingredients of the vegetables cannot be regained.
How do plants use the glucose they make?
Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Glucose is used by plants for energy and to make other substances like cellulose and starch. Cellulose is used in building cell walls.
How do plants make their own food by photosynthesis?
Plants make their own food by a process called Photosynthesis. Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy and stored in the form of starch which can be used later.
How do plants convert light energy into food energy?
The plants convert a tiny amount of the light they receive into food energy. When animals eat green plants (2) they consume and absorb some of this energy, which stored as chemical energy in compounds known as fats and protein. Milk from cows is a good source of solar energy (3), (also an excellent source of essential vitamins and minerals).
Is photosynthesis a chemical change or physical change?
[HOTS] During photosynthesis, the plants intake carbon dioxide and water in the presence of chlorophyll and sunlight to form two new substances, i.e. glucose (food) and oxygen gas. So, photosynthesis is a chemical change. Question 9. The process of digestion is a chemical change.
What are some examples of physical and chemical changes in nature?
Burning of a candle Chemical change as well as physical change and energy evolved. Lightning of a bulb Physical change, energy evolved. Preparation of food by green plants Chemical change, energy absorbed. Volcanic eruption Chemical change, energy evolved.