Basic Agricultural Concepts 2 - JSS1 Agricultural science Past Questions and Answers - page 1
What is the primary purpose of photosynthesis in plants?
Soil nutrient absorption
Energy production
Root development
Pest control
Which part of the plant is directly involved in the process of photosynthesis?
Roots
Stems
Leaves
Flowers
What is the significance of chlorophyll in photosynthesis?
Absorbing carbon dioxide
Transporting water
Capturing sunlight for energy
Releasing oxygen
During photosynthesis, what gas is taken in by plants?
Oxygen
Carbon dioxide
Nitrogen
Hydrogen
How does photosynthesis contribute to the growth of plants?
By increasing soil fertility
By providing structural support
By producing energy for metabolic processes
By reducing water absorption
What is the final product of photosynthesis that is released into the atmosphere?
Carbon dioxide
Oxygen
Water vapour
Nitrogen gas
What role do sunlight and chlorophyll play in the process of photosynthesis?
Sunlight provides structural support, and chlorophyll absorbs oxygen.
Sunlight provides energy, and chlorophyll captures it for photosynthesis.
Sunlight releases carbon dioxide, and chlorophyll transports water.
Sunlight inhibits photosynthesis, and chlorophyll breaks down nutrients.
Which environmental factor influences the rate of photosynthesis in plants?
Soil pH
Temperature
Root depth
Atmospheric pressure
What is the importance of photosynthesis in the overall ecosystem?
It provides structural support to plants.
It releases oxygen and produces food for other organisms.
It enhances soil fertility.
It regulates water absorption in plants.
What factors can limit the rate of photosynthesis in plants?
Adequate sunlight and high temperatures
Insufficient water and low carbon dioxide levels
Excessive nutrients and rapid soil drainage
Heavy rainfall and strong winds