9th Class Biology – Short Questions & Answers
-
What is pollination?
Pollination is the transfer of pollen from the male part (anther) to the female part (stigma) of a flower, enabling fertilization to occur.
-
Explain the process of cellular respiration in detail.
Cellular respiration is a process that converts glucose into ATP, which is used by cells for energy. The stages of cellular respiration include: Glycolysis: This occurs in the cytoplasm and breaks down one molecule of glucose (6-carbon) into two molecules of pyruvate (3-carbon), producing 2 ATP and 2 NADH. Krebs Cycle (Citric Acid Cycle): This…
-
What are the two types of pollination?
The two types of pollination are self-pollination and cross-pollination.
-
Discuss the process of photosynthesis and its importance for life on Earth.
Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose. This process occurs in two stages: Light-dependent reactions: These take place in the thylakoid membranes of chloroplasts and involve the absorption of light energy by chlorophyll. Water molecules are split, releasing oxygen, and…
-
What is fertilization in plants?
Fertilization in plants is the fusion of male (sperm) and female (egg) gametes to form a zygote, which develops into a seed.
-
What is the relationship between cellular respiration and photosynthesis?
Cellular respiration and photosynthesis are complementary processes. Photosynthesis converts light energy into chemical energy (glucose), while cellular respiration breaks down glucose to produce ATP, the usable form of energy in cells. The byproducts of photosynthesis (oxygen and glucose) are the reactants in cellular respiration, and the byproducts of cellular respiration (carbon dioxide and water) are…
-
What is transpiration?
Transpiration is the process by which water is absorbed by plant roots, moves through the plant, and is lost as water vapor through the stomata of leaves.
-
What are stomata?
Stomata are small openings on the surface of leaves and stems that allow the exchange of gases (such as oxygen and carbon dioxide) and the release of water vapor.
-
What is the role of xylem in plants?
Xylem is responsible for transporting water and minerals from the roots to the rest of the plant.
-
What is the function of phloem in plants?
Phloem is responsible for transporting sugars and other organic compounds from the leaves (where they are produced) to other parts of the plant.
Follow Us
Recent Blog Posts
Blog Categories
- No categories