Category Archives for "Biology"

Transportation in plants for Water and Food Supply

Transportation in plants

In humans and other animals, the transport of substances occurs due to circulatory system. In unicellular organisms, the transport within the cell occurs by cytoplasmic movements or by diffusion. But, transportation in plants is quite different. They have no circulatory system yet, the substances have to move to distant places. Water, plant growth regulators, minerals, […]

Continue reading

What system removes waste from the body and How

What system removes waste from the body

Kidneys are the vital organs which are involved in the excretion process. But there are also other organs which remove the waste from the body. These organs together constitute the excretory system as Kidneys Skin Lungs Liver Intestine All the above organs are involved in elimination. Elimination involves removal of waste from the body. Kidneys: […]

Continue reading

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. […]

Continue reading

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 […]

Continue reading

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. […]

Continue reading

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 […]

Continue reading
1 2 3 15