Q: Answer the following:
Q.1: The components which are essential for our body are known as ______________.
Q.2: ______________ is the mode of taking food by an organism and its utilisation by the body.
Q.3: The mode of nutrition in which organisms make food for themselves from simple substance is known as __________________.
Ans: autotrophic nutrition
Q.4: The mode of nutrition in which animals take food prepared by plants is known as ____________.
Ans: heterotrophic nutrition
Q.5: _____________ are the food factories of plants.
Q.6: The cell is enclosed by a thin outer membrane called ___________.
Ans: Cell membrane
Q.7: Cells can be seen only under a _____________.
Q.8: The bodies of living organisms are made up of tiny units are called _______.
Q.9: The nucleus is surrounded by a jelly like substance called ____________.
Q.10: The leaves have a green pigment called _____________.
Q.11: Stomata is surrounded by ___________.
Ans: Guard cells
Q.12: __________ is the ultimate source of energy for all living organisms.
Q.13: The desert plants have __________ like leaves to reduce the loss of water.
Q.14: The presence of ___________ in leaves indicate the occurrence of photosynthesis.
Q.15: The green patches in pond or other stagnant water bodies are generally formed by the growth of ___________.
Q.16: The carbohydrates are made up of ________, ___________ and ___________.
Ans: carbon, hydrogen and oxygen
Q.17: Proteins are nitrogenous substances which contain __________.
Q.18: _______________ does not have chlorophyll.
Ans: Cuscuta (Amarbel)
Q.19: ___________ secrete digestive juices on the dead and decaying matter and convert it into a solution.
Q.20: Plants which use saprotrophic mode of nutrition are called _____________.
Q.21: Fungi mostly appears in the ___________ season.
Q.22: The organisms that live together and share shelter and nutrients are called ______________.
Q.23: Crops require a lot of ____________ to make proteins.
Q.24: _____________ bacteria lives in the root nodules of leguminous plants.
Q.25: The symbiotic relationship between the leguminous plants and Rhizobium bacteria is of significance for ______________.