Photosynthesis is the process by which plants, algae and some bacteria use sunlight, carbon dioxide and water to prepare their food. This is a biogeochemical process in which light energy is converted into chemical energy. Photosynthesis takes place in the chloroplast.
Q. Is water an end product of photosynthesis?
Glucose and oxygen are the final products of photosynthesis. Photosynthesis requires sunlight, chlorophyll, water, and carbon dioxide gas.
Table of Contents
- Q. Is water an end product of photosynthesis?
- Q. Which set is correct for photosynthesis?
- Q. What is the first step in photosynthesis MCQS?
- Q. What are absent in roots?
- Q. What is stomata structure?
- Q. What stomata do?
- Q. Which side has more stomata?
- Q. Which plants do not have stomata?
- Q. Why are stomata closed at night?
- Q. Are all stomata closed at night?
Q. Which set is correct for photosynthesis?
Answer. c) carbon dioxide, water, sunlight and chlorophyll.
Q. What is the first step in photosynthesis MCQS?
The excitement of electrons of chlorophyll b photon of light is the first step of photosynthesis.
Q. What are absent in roots?
Hint: True roots are absent in the primitive plants. Instead, those plants possess root-like structures.
Q. What is stomata structure?
Structure of Stomata The stomata consist of minute pores called stoma surrounded by a pair of guard cells. Stomata, open and close according to the turgidity of guard cells. The cell wall surrounding the pore is tough and flexible. They are the accessory cells to guard cells and are found in the epidermis of plants.
Q. What stomata do?
Stomata are composed of a pair of specialized epidermal cells referred to as guard cells (Figure 3). Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore.
Q. Which side has more stomata?
All surfaces of the leaf have some amount of stomata for regulating gas exchange for photosynthesis. However, the lower epidermis (the underside of the leaf) has more, because it is more often in the shade and so it is cooler, which means evaporation won’t take place as much.
Q. Which plants do not have stomata?
Submerged hydrophytes are plants that stay fully submerged under the water. They do not contain stomata as no transpiration is required in these plants. The gaseous exchange takes place through the process of diffusion. i.
Q. Why are stomata closed at night?
At night, the stomata close to avoid losing water when photosynthesis is not occurring. During the day, stomata close if the leaves experience a lack of water, such as during a drought. The opening or closing of stomata occur in response to signals from the external environment.
Q. Are all stomata closed at night?
Stomata are mouth-like cellular complexes at the epidermis that regulate gas transfer between plants and atmosphere. In leaves, they typically open during the day to favor CO2 diffusion when light is available for photosynthesis, and close at night to limit transpiration and save water.
