Life Process- Important Points To Remember

Que
What are the autotrophic nutrition

Ans
Intake of simple inorganic materials from the environment and using an external energy source like the sun to synthesise complex high-energy organic material is called autotrophic nutrition


Que
What is heterotrophic nutrition

Ans
It involves intake of complex material prepared by other organisms



Que
Why single celled organisms require no specific organs for taking in food

Ans
Single celled organisms no specific organs for taking in food exchange of gases or removal of wastage from the body may be needed because the entire surface of the organism is in contact with the environment

Que
What is stomata

Ans
The tiny pores present on the surface of the leaves is called stomata the gaseous exchange takes place in the leaves through this pores

Que
What are guard cells

Ans
Opening and closing of stomata is a function of guard cell the guard cell swell when the water flows into them and causing the stomatal pore to open while the pore close when a guard cell shrink


Que
How does nutrition in amoeba takes place

Ans
The single celled organism amoeba takes nutrition by the process known as pseudo pedia


Que
How respiration in the plants occur

Ans
Plants respire generally through stomata in some cases it also has fire to lenticels present in the stem in order to understand what the lecture given below



Que
What is breathing

Ans
Intake of Oxygen and exhale of carbon dioxide from the nostrils is known as breathing




Que
What is the difference between respiration and breathing

Ans
Breathing is only intake of Oxygen and exhale of carbon dioxide from the nostril but on the other hand respiration is the conversion of glucose into energy in form of ATP using the oxygen



Transportation in Human Beings

Blood and Lymph are two medium of Transportation in organisms

Que - What are main components of blood?

Ans - The main components of blood are

1- Plasma

2- RBC ( Red Blood Cell)

3- WBC ( White Blood Cell)

4- Platelets

Que - Why blood is red ?

Ans - The colour of blood is red because it contains red pigment called haemoglobin in its cells

Que - Why white blood cells are called soldiers of our body ?

Ans - WBC ( white blood cells ) help us to fight against germs which causes diseases They are called soldiers of body because they manufacture antibodies which are
Helpful in digesting bacteria

Que What is clotting of Blood

Ans In blood platelets are present which contains thrombin which helps in clotting of blood when we have any cut with knife or in case of injury

Que. How many chambers are present in heart of human beings

Ans Heart of himan beings is four chambered

Que --What are functions of blood

Ans -- Functions of blood are

1) It helps in transportation of oxgen through RBC

2) It helps in transporting food from one cell to another

3) It regulates the body temperature

4) White blood cells are helpful in removing harmul bacteria in body

Que --What are three types of vessels are found in blood

Ans - There are three types of blood vessels

1) Arteries -- These contain oxygenated blood from heart to different parts of body . These are thick walled vessels and blood flow with great pressure They are red in colour They are deep seated vessels

2) Veins - These contain deoxygenated blood flowing from parts of body to lungs It contains blood rich in carbon dioxide They are thin walled vessels The blood flow in less pressure They are blue in colour.

3) Capillaries These are network of vessels connecting arteries and veins



Sat Dec 3, 2022

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Sonika Agarwal
A California-based travel writer, lover of food, oceans, and nature.

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