Blood is the liquid connective tissue in the body. This blood is essential for life activities and has many components. Broadly it can be classified as a cellular fraction which makes 45 % and plasma which comprises 55%. Composition of Blood 1.Blood cells a) Red blood cells b) White blood cells c) Platelets or thrombocytes […]
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T lymphocytes and B lymphocytes are both white blood cells involved in the fight against infections in our bodies. They provide immunity and also help to prevent future infections. Difference between T cells and B cells in Table Sl.No Characteristics T Cells B Cells 1 Alternative names They are also called TLymphocytes. They are also […]
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Bacteria release substances that are harmful to the host. These are exotoxins and endotoxins. Exotoxins are toxic substances that are secreted by bacteria outside of their cell. While the endotoxins are toxins located within the cell membrane. Exotoxin Vs Endotoxin Sl.NO Characteristics Exotoxins Endotoxins 1 Source Produced from the live gram-positive and gram-negativebacteria. They are […]
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The digestive system of the frog includes the alimentary canal or alimentary tract and the various associated digestive glands. Digestive System of Frog The alimentary canal of the frog is complete. The alimentary canal is a long, coiled tube of varying diameter that extends from mouth to cloacal aperture of the frog. Alimentary canal comprises […]
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The virus undergoes multiplication inside the cells of a host. Of them, bacteriophages show two types of reproduction in their life cycle.They are1. Lytic cycle.2. Lysogenic cycle. Lytic vs Lysogenic cycle Sl.No Lytic cycle Lysogenic cycle 1 Lysis means destruction. A Lytic cycle will lead to the destruction of the infected cell and hence the […]
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Hydra is a fresh water organism belonging the phylum Cnidaria. It is a multi-cellular organism, yet it is not highly evolved in terms of anatomy like other animals. Hydra Biology This can be studied in terms of Nutrition. Digestion Egestion Respiration Excretion Nervous system and Reproduction. NUTRITION: 1. Food Hydra is exclusively carnivorous. They devour […]
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DNA and RNA are considered as nucleic acids. These are vital molecules present in all the living cells on the earth. Interestingly they also found to be present in space as per NASA. These nucleic acids are involved in three basic processes in our body like the replication, transcription and translation. However they do have […]
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The root is the descending part of the plant axis which lies inside the soil. The root typically does not contain chlorophyll and therefore it is non green. It bears lateral branches and a protective cap at the apex. Root doesn’t have nodal divisions; however it is divided into five main areas on the basis […]
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The stem is the visible part of a plant that hold holds it above the ground. This stem develops from the shoot. In the seed, the embryonic stem is called a hypocotyl. The stem is a significant organ in a plant as it is responsible for the conduction of water, mineral salts, food, etc to […]
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Chromosomes are genetic material present in the cell nucleus. Chromatids are the parts of the chromosome present as two arms. Sl. No Characteristics Chromosomes Chromatids 1 Basic They are nuclear components that play a vital role in heredity, mutation, variation, and evolutionary development of the species These are part of chromosomes. During mitosis, the chromosomes […]
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