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Biology : An Introduction Video Lecture | General Awareness for SSC CGL

FAQs on Biology : An Introduction Video Lecture - General Awareness for SSC CGL

1. What is the basic unit of life in biology?

Ans. The basic unit of life in biology is the cell. Cells are the smallest structural and functional units of living organisms. They can exist as independent entities, as in unicellular organisms, or as part of multicellular organisms, where they work together to perform various functions.

2. What are the main differences between plant and animal cells?

Ans. The main differences between plant and animal cells include the presence of a cell wall in plant cells, which provides structure and support, while animal cells have only a cell membrane. Additionally, plant cells contain chloroplasts for photosynthesis and large central vacuoles for storage, whereas animal cells have smaller vacuoles and do not perform photosynthesis.

3. What is photosynthesis and why is it important?

Ans. Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy in the form of glucose, using carbon dioxide and water. It is important because it is the primary source of energy for nearly all living organisms on Earth and produces oxygen as a byproduct, which is essential for most life forms.

4. How do organisms maintain homeostasis?

Ans. Organisms maintain homeostasis through various mechanisms that regulate their internal environment, such as temperature, pH, and concentration of ions. For example, humans sweat to cool down when they are hot, and shiver to generate heat when they are cold. These processes are controlled by feedback systems that help keep conditions stable.

5. What role do enzymes play in biological processes?

Ans. Enzymes are biological catalysts that speed up chemical reactions in the body without being consumed in the process. They lower the activation energy required for reactions to occur, thus increasing the rate of metabolic processes. Enzymes are specific to their substrates and play crucial roles in digestion, energy production, and other biochemical pathways.

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Apr 23, 2025 Last updated

Video Description: Biology : An Introduction for SSC CGL 2025 is part of General Awareness for SSC CGL preparation. The notes and questions for Biology : An Introduction have been prepared according to the SSC CGL exam syllabus. Information about Biology : An Introduction covers all important topics for SSC CGL 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Biology : An Introduction.

Introduction of Biology : An Introduction in English is available as part of our General Awareness for SSC CGL for SSC CGL & Biology : An Introduction in Hindi for General Awareness for SSC CGL course. Download more important topics related with notes, lectures and mock test series for SSC CGL Exam by signing up for free.

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	General Awareness for SSC CGL 470 videos\|1042 docs\|394 tests

General Awareness for SSC CGL

470 videos|1042 docs|394 tests

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