1. The structures of a leaf are perfectly suited
for photosynthesis. Justify this statement,
2. Briefly describe the process of
photosynthesis.
3. Briefly describe the structure of the
chloroplast
4. How do the factors required for
photosynthesis affect the rate of
photosynthesis
5. What is respiration? Why is it important for
plants and animals
6. Photosynthesis and respiration are opposite
chemical processes, Justify this statement.
7. Describe an experiment to show that oxygen
is produced during photosynthesis.
Answers
Answer:
1. Leaves have a large surface area so more light hits them. The palisade cells contain many chloroplasts which allow light to be converted into energy by the leaf. ... The leaf also has air spaces which allow better diffusion of carbon dioxide into the leaf.
2. 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.
3. The chloroplast has an inner and outer membrane with an empty intermediate space in between. Inside the chloroplast are stacks of thylakoids, called grana, as well as stroma, the dense fluid inside of the chloroplast. These thylakoids contain the chlorophyll that is necessary for the plant to go through photosynthesis.
4. Light intensity
Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply.
5. a process by which living things produce energy from food. Respiration usually needs oxygen.
respiration is important because it provides the energy for living organisms to perform all of the other necessary functions to maintain life. During respiration in plants, very little transport of gases takes place from one plant part to another.
6. Cellular Respiration and Photosynthesis are almost opposite processes because photosynthesis removes carbon dioxide from the atmosphere while cellular respiration puts back carbon dioxide. Cellular respiration uses oxygen and has it's waste product of carbon dioxide.
7. Experiment to show that oxygen is produced during photosynthesis - definition. Place water plant in a beaker containing pond water. Cover the plant with short stemmed funnel. ... A glowing splinter bursts into the flame shows the presence of oxygen.