Question

20 important facts of chapter life processes of class 10th​

Answer 1

our blood circulates 2 times in heart

there is epiglottis in our wind pipe

we can eat food while can take oxygen

our kidney contains million bronchus

the water circulation is done by transpiration in plant

the excretory parts are fallen by leaf

there is also internal nostrils in our nose

Pepsin only activate with hcl

Answer 2

All living things perform certain life processes like growth, excretion, respiration, circulation etc.

The basic functions performed by living organisms for their survival and body maintenance are called life process.  

Life Processes require energy which is provided by nutrition.

Modes of Nutrition

Autotrophic :make their own food by process of photosynthesis Eg. Green Plants

Heterotrophic:- they depend on the autotrops for food and also take the help of the environment . Eg. Animals, Fungi

Photosynthesis : The process by which green plants make their own food with the help of CO and H O in the presence of chlorophyll and sunlight is also called photosynthesis.

Functions of Stomata :

(i) Exchange of gases  

(ii) Loses large amount of water [water vapour] during transpiration and helps in up flow of water

Chloroplast contains the green pigment chlorophyll which has a pivotal role in photosynthesis.

nutrition in amoeba

Amoeba has a holozoic nutrition. Thus, solid food particles are ingested which react with enzymes and are digested. It is an omnivore.

(i) Amoeba move with the help of pseudopodia (extension of cell membrane)

(ii) Food vacule is formed

(iii) Undigested food is thrown out.

Nutrition in Human Beings : The human digestive system comprises of alimentary canal and associated digestive glands

HUMAN DIGESTIVE SYSTEM: (imp)

As shown in the flow chart, digestion begins from th mouth.In the mouth it is broken down by salivary amylase. The food moves to the stomach through the oesophagus which performs persistatic movement. Enzymes and various digestion juices from liver,gall bladder and pancreas act on the chunks from the stomach in the small intestine. In the large intestine , the remaining nutrients are absorbed and the leftover is removed from the body through the rectum and anus.

Respiration

It is a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.

(i) Gaseous exchange : Intake of oxygen from the atmosphere and release of carbon-dioxide.

(ii) Breakdown of simple food in order to release energy inside the Cellular Respiration

Transportation

Human beings like other multicellular organism need regular supply of food, oxygen etc., This function is performed by circulatory system or Transport system.

The circulatory system in human beings consists of:

• Double Circulation : Blood travels twice through the heart in one complete cycle of the body.
• Pulmonary circulation : blood moves from the heart to the hugs and back the heart.
• Systemic circulation :blood moves from the heart to rest of the body and back to the heart.

• Lymph – a yellowish fluid that escapes from the blood capillaries into the inter cellular spaces. Lymph flows from the tissues to the heart assisting in transportation and destroying germs.

Transportation in Plants : There are two main conducting tissues in a plant.

(a) Xylem (b) Phloem.

Transpiration is the process by which plants lose water in the form of vapours.

Role of Transpiration

1. Absorption and upward movement of water and minerals by creating PULL.

2. Helps in temperature regulation in Plant.

Translocation : Transport of food from leaves (food factory) to different part of the plant is called Translocation.

Excretion in human beings : The process of the removal of the harmful metabolic wastes from the body is called excretion. Excretory system of human beings includes :

• A pair of kidney
• A Urinary Bladder
• A pair of Ureter
• A Urethera
• Process of Excretion
• Renal artery bring in blood containing waste substances to the kidneys.
• Kidney filters blood.
• Urine produced in the kidneys passes through the ureters into the urinary bladder where it is stored until it is released through the urethera.
• Function of Kidney : It is remove waste product from the blood i.e., urea which is produced in the liver.
• Nephron : Each kidney has a large number of filtration units called nephrons.
• Nephron is the structural and functional unit of Kidney.

Excretion in Plants

1. Oxygen released during photosynthesis.

2.  by transpiration

3. Wastes may be stored in leaves, bark etc. which fall off from the plant.

4. Waste products stored as gums, resin in old Xylem

5. Plants excrete some waste into the soil around them.

hope it helps you my dear friend plz mark as brainleist if it possible and follow too

:)