One Liner Questions The World of the Living - Science & Pedagogy Paper 2 for CTET

One Liner Questions

Q1: What is the term for the process by which living organisms maintain a stable internal environment?

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Ans: Homeostasis.

Q2: Who is known as the pioneer in the field of biology and is considered one of the early biologists?

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Ans: Aristotle.

Q3: What is the process through which plants convert carbon dioxide and water into glucose and oxygen?

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Ans: Photosynthesis.

Q4: Which system of classification was introduced by Carolus Linnaeus in 1753?

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Ans: Binomial Nomenclature.

Q5: In which kingdom do organisms like algae, protozoans, and slime molds belong?

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Ans: Kingdom Protista.

Q6: What are the primary cells responsible for transporting water in plants?

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Ans: Xylem.

Q7: What is the term used for the ability of plants to trap and digest insects for nutrition?

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Ans: Insectivorous Nutrition.

Q8: Which part of a flower is responsible for producing pollen?

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Ans: Anther.

Q9: In the Five-Kingdom classification, which kingdom consists of multicellular eukaryotic organisms capable of photosynthesis?

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Ans: Kingdom Plantae.

Q10: What is the primary difference between monocotyledons and dicotyledons?

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Ans: The number of cotyledons in the seed.

Q11: What is the term used for the living organisms' ability to respond to external stimuli?

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Ans: Irritability.

Q12: What is the role of Rhizobium bacteria in plants?

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Ans: They fix nitrogen in leguminous plants.

Q13: What are the types of respiration in plants?

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Ans: Aerobic and Anaerobic Respiration.

Q14: What is the function of the phloem in plants?

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Ans: Transports food from the leaves to other parts of the plant.

Q15: Which group of plants is known for having naked seeds?

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Ans: Gymnosperms.

Q16: Which part of the plant is responsible for anchoring it to the soil?

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Ans: Root.

Q17: Which type of symmetry is exhibited by animals in the phylum Cnidaria?

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Ans: Radial Symmetry.

Q18: What is the main function of the stomata in plants?

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Ans: Gas exchange (taking in CO₂ and releasing O₂).

Q19: What is the significance of the phylum Chordata in the animal kingdom?

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Ans: They have a dorsal nerve cord, notochord, and pharyngeal gill slits.

Q20: In which kingdom would you classify organisms that are unicellular and lack a true nucleus?

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Ans: Kingdom Monera.

Fill in the Blanks

Q1: The system of naming organisms by two names, including genus and species, is called __________.

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Ans: Binomial Nomenclature.

Q2: The process in plants where water vapor is lost through the leaves is known as __________.

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Ans: Transpiration.

Q3: Plants that obtain nutrients from other plants by attaching to them are called __________ plants.

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Ans: Parasitic.

Q4: __________ is the process of converting atmospheric nitrogen into a form that plants can absorb.

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Ans: Nitrogen Fixation.

Q5: The energy released during respiration is used by plants for __________ and growth.

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Ans: Metabolism.

Statement Based Questions

Q1: Identify the correct statement(s):
(a) Plants are autotrophic and produce their food through photosynthesis.
(b) All plants reproduce asexually.
(c) Rhizobium helps in nitrogen fixation.
(d) Animals are autotrophic organisms.

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Ans: A, C.
Sol: A is correct because plants make their food through photosynthesis. C is correct because Rhizobium bacteria help in nitrogen fixation in legumes. B and D are incorrect; not all plants reproduce asexually, and animals are heterotrophic.

Q2: Identify the correct statement(s):
(a) Gymnosperms have seeds enclosed within fruits.
(b) Monocots have a single cotyledon.
(c) Dicotyledons have one seed leaf.
(d) Angiosperms are non-flowering plants.

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Ans: B.
Sol: B is correct as monocots have a single cotyledon. A is incorrect; Gymnosperms have naked seeds, not enclosed in fruits. C is incorrect because dicotyledons have two cotyledons. D is incorrect as angiosperms are flowering plants.

Q3: Identify the correct statement(s):
(a) Homeostasis helps maintain internal stability in living organisms.
(b) All animals have a three-chambered heart.
(c) Excretion in plants involves releasing excess oxygen during photosynthesis.
(d) Asexual reproduction results in offspring with genetic diversity.

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Ans: A, C.
Sol: A is correct because homeostasis maintains internal stability in organisms. C is correct since plants release oxygen during photosynthesis. B and D are incorrect because not all animals have three-chambered hearts, and asexual reproduction does not result in genetic diversity.

Q4: Identify the correct statement(s):
(a) Animals with bilateral symmetry exhibit mirror-image symmetry.
(b) Coelomates have no body cavity.
(c) Pseudocoelomates have a body cavity formed from mesodermal tissue.
(d) Cnidarians have a tissue-level organization.

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Ans: A, D.
Sol: A is correct as bilateral symmetry results in mirror-image symmetry. D is correct because cnidarians have a tissue-level organization. B and C are incorrect as coelomates have a true body cavity, and pseudocoelomates have a body cavity between the mesoderm and endoderm.

Q5: Identify the correct statement(s):
(a) Xylem is responsible for transporting water in plants.
(b) Phloem transports food from roots to the leaves.
(c) Leaves contain chlorophyll for photosynthesis.
(d) Roots provide support for the plant and help in reproduction.

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Ans: A, C.
Sol: A is correct because xylem transports water, and C is correct as chlorophyll in leaves aids photosynthesis. B and D are incorrect because phloem transports food from leaves to other parts, and roots help in support and absorption, not reproduction.

Problem Based Question

Q: A plant is grown in a room with limited light. Over time, its leaves begin to yellow, and it stops growing well. What could be the problem, and how can it be corrected?

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Ans: The plant may be suffering from insufficient light for photosynthesis. To correct this, provide the plant with more light or place it in a location where it can receive optimal sunlight. Additionally, check if the plant is receiving proper nutrients and water.