important diagram of class 10 and name them that come in science exam....
Answers
human eye
heart
correction of eye defects
amoeba
flower(reproduction)
prism
digestive system and respiratory ....
brain
reflex arc..
biogas plant
Important Biology diagrams for CBSE Class 10 are given below:
1. Neuron
Neurons or the nerve cells form the basic components of the nervous system. A typical neuron possesses a cell body called as soma, hair like structures called as dendrites and an axon. Dendrites are thin structures that arise from the cell body. These dendrites acquire information from synapses via neurotransmitters and convert them into electrical impulses. These impulses are further carried over to the cell body.
2. Brain
A human brain is composed of three main parts- the forebrain, the midbrain and the hindbrain. These three parts have specific functions.
Forebrain: This consists of the cerebrum, hypothalamus, and thalamus.
Midbrain: Consists of the tectum and tegmentum.
Hindbrain: Is made of the cerebellum, medulla, and pons.
3. Reflex Arc
The pathway of a reflex action is called reflex arc. In a reflex arc the stimulus is received by the receptors (sense organs) and it passes through the sensory nerves to the spinal cord. From the spinal cord the information is passes through the motor nerves to the effectors (muscles/glands) for the response.
4. Human Excretory System/Human Urinary System
The human excretory system mainly comprises of the following parts:
A pair of kidneys
A pair of ureters
Urinary bladder
Urethra
Kidneys have a structural filtration unit called nephron where the blood is filtered. Each kidney contains a million of nephrons. Capillaries of kidneys filter the blood and the essential substances like glucose, amino acids, salts, and required amount of water are reabsorbed. Meanwhile, the pure blood circulates back to other parts. Excess water and nitrogenous waste in humans are converted to urine. Urine thus formed will be passed to urinary bladder via ureter. Through the urinary opening at urethra, we excrete urine.
5. Human Digestive system
The primary function of the digestive system is to break down food both mechanically and by the use of enzymes so as to release energy that can be used by the body to perform various functions and proper growth/repair of body cells.
Food is taken inside mouths where saliva that secreted by salivary glands and contains digestive enzymes like salivary amylase, breaks down starch (contained in food) into sugar.
Then tongue helps in chewing, moistening, rolling and swallowing it.
Food moves into the stomach, through the movement of walls of oesophagus.
Stomach mixes the food hence received with various digestive juices to cause its partial digestion.
The food from stomach moves into the small intestine. It is the site where complete digestion of carbohydrates, proteins, and fats takes place. It gets intestinal juices from two different glands – liver and pancreas that help in the further digestion of food.
Liver is the largest gland of the body and secretes bile juice. Bile juice is stored in the gall bladder and helps in digestion of fats.
Pancreas has enzymes that help in total digestion of all food components.
A part of the food which we eat cannot be digested by our body passes from small intestine to large intestine. The walls of large intestine absorb most of the water from this food and become solid. Last part of the large intestine called ‘rectum’ stores this undigested food for some time and finally, egested from our body through anus as faeces or ‘stool’.
6. Internal Structure of Heart
7. Human Respiratory System
8. Nutrition in Amoeba
9. Human Male Reproductive System
10. Human Female Reproductive System
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