Diffusion – Movement of Substances
Table of Contents Diffusion Defination Diffusion is the net movement of molecules and ions from a region of their higher concentration to a region of…
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Category
Cell biology
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…
Read Article →CELL JUNCTION
The cells of epithelial and other tissues are held together by various types of cell junctions, that can be categorized into 3- main groups –…
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BLOOD CLOTTING (HAEMOSTASIS)
The clot or coagulam is a dark -reddish-brown ‘scum’ formed mainly by a network of threads in which dead or damaged blood elements are trapped.…
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CARBOHYDRATES
Table of Contents Carbohydrates are classified into two types on the basis of molecular weight. Micromolecules – Monosaccharides and Oligosaccharides (Including Disaccharides) Macromolecules – Polysaccharides…
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What is the function of the cell membrane?
The cell membrane is otherwise called a Plasma membrane. It may be defined as the thin, elastic, semipermeable living membrane that serves as a boundary…
Read Article →OXIDATIVE PHOSPHORYLATION, ELECTRON TRANSPORT CHAIN
OXIDATIVE PHOSPHORYLATION It is the main source of energy of our cell. Takes place in Mitochondria. Movement of protons through inner mitochondrial membrane leads to ATP production…
Read Article →ANIMAL TISSUE
As mentioned earlier, cells are the smallest units of life. In complex organisms, cells group together with one another based on similar structure and function…
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HOMEOSTASIS
Q1) The relationship between mineral and water is know as: A) Ascent of sap B) Osmoregulation C) Excretion D) All of them Q2) The cell…
Read Article →EXCRETION
Q1) Unwanted substances excreted by plants are: A) Uric acid B) Ammonia C) Latex D) Urea Q2) Solid crystalline substance called uric acid excreted as Solid…
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OXIDATIVE PHOSPHORYLATION, ELECTRON TRANSPORT CHAIN
OXIDATIVE PHOSPHORYLATION It is the main source of energy of our cell. Takes place in Mitochondria. Movement of protons through inner mitochondrial membrane leads to ATP production…
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ENZYMES
The global life depends on a series of chemical reactions. Most of the chemical reactions proceed too slowly on their own to sustain life. Hence…
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