Tag: A level biology

  • MCQ on Respiration in plant

    MCQ on Respiration in plant

    Q1: Which organelle in plant cells is primarily responsible for cellular respiration? (A) Chloroplast (B) Mitochondrion (C) Vacuole (D) Nucleus Answer: (B) Mitochondrion Explanation: Mitochondria are the main sites of cellular respiration in plant cells, where ATP is produced. Q2: During respiration, what is the primary substrate used by plants to generate energy? (A) Oxygen…

  • Ecosystem – Structure and Function

    The term ‘ecosystem’ was proposed by a British ecologist A.G. Tansley (1953). It represents the basic fundamental, functional unit of ecology which comprises of the biotic community together with its abiotic (non-living) environment. Ecosystem is the functional unit of nature where living organisms interact with each other and with their environment. Ecosystems can be recognized…

  • Glycolysis Pathway

    Glycolysis Pathway

    Glycolysis is a crucial metabolic pathway found in all living cells, serving as the initial step in the breakdown of glucose to produce energy. This ancient and highly conserved process occurs in the cytoplasm and plays a central role in both aerobic and anaerobic respiration. In this note, we’ll delve into the details of glycolysis,…

  • Biological Classification

    Biological Classification

    Biological Classification: Understanding the Diversity of Life  In the vast tapestry of life that envelops our planet, organisms of all shapes, sizes, and functions coexist. From the towering trees of the rainforests to the microscopic bacteria hidden in the soil, every living entity has a place and role in the intricate web of life. This…