18 Questions
What is the primary function of roots in terrestrial plants?
To absorb water and nutrients from the soil
What is the essential element used in the synthesis of proteins and other compounds?
Nitrogen
How do bacteria contribute to the nutrition of autotrophs?
By preparing organic compounds from atmospheric nitrogen
What determines the form of nutrition in an organism?
Type of food material and its availability
What is the role of autotrophs in their ecosystem?
To prepare organic compounds from inorganic ones
What is the mode of nutrition in heterotrophs?
Consuming other organisms or organic compounds
In humans, the transport of oxygen and carbon dioxide is a function of which system?
Circulatory system
What is the primary function of xylem in plants?
Transport of water
In humans, which organs are responsible for removing excretory products in the form of soluble nitrogen compounds?
Kidneys
How do plants typically get rid of waste material?
By storing it in cell-vacuoles or excreting it into the soil
What is the primary function of the circulatory system in humans?
Transportation of materials
In plants, which tissues are responsible for transporting water, minerals, food, and other materials?
Vascular tissue
What is the function of the temporary finger-like extensions of the cell surface in Amoeba?
To fuse over the food particle and form a food-vacuole
In which organism does food get taken in at a specific spot?
Paramoecium
What is the role of cilia in Paramoecium?
To move the food to a specific spot
What is the shape of the alimentary canal in human beings?
A long tube extending from the mouth to the anus
What is the mode of nutrition in organisms like cuscuta, ticks, lice, leeches and tape-worms?
Parasitic
What is the purpose of the food-vacuole in cellular nutrition?
To break down complex substances into simpler ones
This quiz covers the basics of photosynthesis, the role of sunlight, and the necessary raw materials for plant growth and development.
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