18 Questions
What is the primary function of bio-catalysts called enzymes in organisms?
Breakdown of complex substances into simpler ones
Which process fulfills the carbon and energy requirements of autotrophic organisms?
Photosynthesis
Which type of organisms depend directly or indirectly on autotrophs for survival?
Animals and fungi
What are the sources of energy and materials for living organisms?
Carbon dioxide and water
Which organisms utilize simple food material obtained from inorganic sources like carbon dioxide and water?
Green plants and some bacteria
What is the process through which complex substances are broken down into simpler ones for organism use?
Digestion
What is the role of roots in photosynthesis?
Uptake of water and essential nutrients from the soil
Which of the following elements is essential for protein synthesis in plants?
Nitrogen
How do terrestrial plants acquire water for photosynthesis?
Via the roots from the soil
Which part of the plant is responsible for the uptake of nitrogen from the soil?
Roots
In plant photosynthesis, what role does sunlight play?
It provides energy for the process
Which of the following elements can be absorbed by plant roots from the soil to aid in photosynthesis?
Phosphorus
How does Amoeba take in food?
Using temporary finger-like extensions of the cell surface
Which unicellular organism has cilia that move food particles to a specific spot for ingestion?
Paramecium
What is the basic function of the alimentary canal in humans?
Absorbing nutrients from food
Which part of the human body is responsible for storing urine before it is excreted?
Urinary bladder
What is the main function of nephrons in the kidney?
Filtering blood to form urine
What is the role of ureters in the excretory system?
Transporting urine from kidneys to the urinary bladder
Explore the presence of starch in leaves and design experiments to demonstrate the importance of sunlight in photosynthesis. Learn about autotrophs' energy requirements and the raw materials needed for building their bodies.
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