Conversion of plants

CONVERSION OF PLANTS
Group 4:
Lê Đặng Hà Thanh
Nguyễn Thị Thương
1. Absorb (v) hấp thụ, hút
2. Transform (v) chuyển hóa
3. Organic matter (n) chất hữu cơ
4. Interaction (n) Sự ảnh hưởng
5.Osmotic pressure (n) áp suất thẩm thấu
6. Nutrient (n) chất dinh dưỡng
7. Composition (n) thành phần
8. Plant tissuse (n) mô thực vật
9. Amino acids (n) Axit amin
10. Organic acids (n) Axit hữu cơ
11.Photosynthesis (n) Sự quang hợp
12. Element (n) Nguyên tố
13. Rearrange (v) Sắp xếp lại
14.Molecule (n) Phân tử
15. Metabolism (n) Sự trao đổi chất
16. Fotunately (ad) May mắn
How do plants grow?
How do plants absorb food through their roots, and transform to their leaves?
Plants absorb food through their roots, and transform it into organic matter through their leaves.
At root, little absorptive hairs that firmly stick to the soil particles
- This absorption action, under the influence of "osmotic pressure", will transport the nutrients from the soil to the leaves.
- Plant composition: Plant tissues are made of or contain many components, such as proteins, polysaccharides, amino acids and organic acids.
- These compounds are themselves made up of 80% oxygen and carbon, the rest being hydrogen and nitrogen, and a series of essential minerals like silicon, potassium, …
How does plants convert light energy to chemical energy?
How do plants produce oxygen?
The process involves taking one form of energy -sunlight - and changing it to another form of energy - sugar - that the plant can use more readily.
- Elements: Plants absorb carbon dioxide from the atmosphere through stomata, microscopic openings in the outer tissue layer covering the plant. Roots take in water from the ground and transport it to leaves.
Light Energy: Light energy is crucial to the photosynthesis process.
- Chemical Energy: 6H2O + 6 CO2  C6H12O6 (glucose) + 6O2
- Oxygen is released into the atmosphere and glucose fuels the immediate functions of the plant or is stored until needed.
Plants produce oxygen by covert carbon dioxide to oxygen.
- As photosynthesis requires sunlight, this process only happens during the day. - We often like to think of this as plants "breathing in carbon dioxide" and "breathing out oxygen". However, the process is not exactly this simple.
Then why do the plants get rid of all the oxygen they produce during photosynthesis? 
- They do not. Plants actually hold on to a small amount of the oxygen they produced in photosynthesis and use that oxygen to break down carbohydrates to give them energy.
But what happens at night when there is no sunlight which is needed in photosynthesis?
- Interestingly, in order to maintain their metabolism and continue respiration at night, plants must absorb oxygen from the air and give off carbon dioxide. Fortunately for all of us oxygen breathers, plants produce approximately ten times more oxygen during the day that what they consume at night