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Category Archives for "Biology"

What is Hemostasis | Its Mechanism in 4 Stages

What is Hemostasis

Hemostasis is a series of an overlapping process intended to stop the bleeding during an injury to the blood vessel. The process occurs approximately within 15 seconds after the injury. The platelets which are a type of blood cells play a vital role in it. This hemostasis occurs in four stages as 1. Vasoconstriction 2. […]

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Importance of Roots | 10 Uses to Plants and Man

importance of roots - carrots as food

Roots are the important parts of the plant and trees. For plants they are useful for Fixing the plant firmly to the soil, Provide water, Provide minerals and manures, Storage of food, Excretion of waste, Supports the life of other organisms. For humans Source of food Provides vital medicine and drugs, Source of fiber, Help […]

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What are nematodes | Their Characteristics, Examples and Uses

What are nematodes

Nematodes are the class of animals belonging to the phyla Aschelminthes. Their cross-section is round in shape and hence called as roundworms. They have features similar to tapeworm but, have some distinct characters like Size Body systems Reproduction type Food habits Distribution Size: Nematodes can be microscopic but even large and visible to naked eye. […]

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How does Saliva Help in Digestion | 5 Important Roles

How does Saliva Help in Digestion-cleansing mouth

Saliva is the first secretion of the digestive system. Here are five ways on how does the saliva help in digestion. 1. Chewing the food. 2. Sense of taste 3. Enzymatic digestion of larger carbohydrates 4. Lubrication of food for easy passage 4. Moistening and cleaning the mouth 5. Defense against microbes. Saliva is secreted […]

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How does Memory Work | 3 Stages and Types

How does memory work

Memory is the ability of the brain to collect, store and also retrieve information. This memory varies from person to person and also with age and disease. In this article we will see how does memory work and what factors influence it. It works in three stages as 1. Encoding the information 2. Storage 3. […]

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Importance of Lymphatic System | 5 Essential Functions in Body

importance of lymphatic system

The lymphatic system is an addition to the blood circulatory system in the body. It performs many functions similar to blood. It plays a key role in Body immune defense. Exchange of gases Exchange of Nutrients Transfer of hormones Absorption of fats in the intestine. The lymphatic system comprises of lymphatic organs, lymphocytes and lymph. […]

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How does Photosynthesis Work | Step by Step Process

How does Photosynthesis Work

Photosynthesis by definition is the synthesis of carbohydrates in the green plants by utilization of carbon dioxide and water in the presence of sunlight. This phenomenon provides food for all the living organisms directly or indirectly. 264 gms of CO2, 216gms of water are utilized to produce 180gms of glucose, 108 gms of water and […]

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Do Unicellular Organisms have a Nucleus ? Yes and No

Do Unicellular Organisms have a Nucleus - paramecium

Do Unicellular Organisms have a Nucleus ? The answer is “Yes” and also “No”. Some of them have while others don’t The unicellular organisms include 1. Bacteria 2. Archea 3. Protozoa 4. Single-celled algae 5. Yeast (Single-celled fungi) Not all unicellular organisms have the nucleus. For example, all the prokaryotic organisms have no nucleus. Yet […]

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