This is a PowerPoint presentation on a chapter based on CBSE syllabus class 10th chapter no. 6 LIFE PROCESSES. It will help you to complete your homework or project work.

1. Chapter :- 6 Biology Class:- X
Submitted By:- ABHINAV JAIN X – A ROLL NO.:- 01
1

2. All the processes which together keep the living organisms
alive and perform the job of maintaining of the body, are
called LIFE PROCESSES.
Example:- Respiration, Excretion, etc.
Nutrition:- It is defined as the process of intake of the
nutrients and it’s utilization by an organism in various
biological activities.
Modes of Nutrition:-
1. Autotrophic Nutrition
2. Heterotrophic Nutrition
3. Saprotrophic Nutrition
2

3. A kind of nutrition in which an organism prepare it’s food
own by the use of raw materials like CO2, H2O by the use of
chlorophyll molecules in the presence of sunlight.
Equation:- 6 CO2 + 12 H2O C6H12O6 + 6O2 + 6 H2O
3

4.  Absorption of light energy by chlorophyll.
 Conversion of light energy to chemical energy and splitting of water molecules
into hydrogen and oxygen.
 Reduction of carbon dioxide to CARBOHYDRATES.
4

5.  The opening and closing of the pores is a function of the
guard cells. The guard cells smell when water flows into
them, causing the stomatal pore to open. Similarly, the
pore closes if thee guard cells shrink.
5

6.  The organism which depends on the other organisms like
plant and animal for their food are called HETEROTROPH
& this mode of nutrition is called as HETEROTROPHIC
NUTRITION.
6

7.  In his mode of nutrition,
organisms obtain food from
dead and decay matter like
fungus and bacteria.
7

8.  Amoeba is a uni- cellular organism it lives in fresh water
ponds, it obtain by thee process of PHAGOCYTOSIS in
which it engulfs the food particles by forming pseudopodia
around it.
8

9.  For the digestion of complex food, alimentary canal is
present in human beings it starts from mouth and ends into
anus .
9

10.  MOUTH:- It includes teeth, tongue and salivary glands.
Saliva is secreted by salivary glands I contain a enzyme called
SALIVARY AMYLASE (Ptyalin) which digest starch into
sugar (MALTOSE)
Starch Sugar (MALTOSE)
 OESOPHAGUS:- From the mouth food is taken to the
stomach through food pipe i.e., OESOPHAGUS. The
peristaltic moment of oesophagus help in the moment of food.
Salivary Amylase
10

11.  STOMACH:- The stomach is large organ which expands
when food enters it. The muscular walls of the stomach help
in mixing the food. The digestion functions are taken care of
by the gastric glands present in the walls of the stomach.
These release hydrochloride acids creates an acidic medium
which facilitates the action of the enzyme pepsin. The mucus
protects the inner lining of the stomach from the action of
acid under normal conditions.
11

12.  SMALL INTESTINE:- Small intestine is the longest part
of the alimentary canal. It secrets intestinal juice which
contain many enzymes they do following functions.
Peptones Amino acids
Maltose Glucose
Sucrose Glucose and Galactose
Emulsified fats Fatty acids and glycrols
 LIVER:- It secrets bile juice and which is stored in gall
bladder. Bile emulsified fats.
12

13.  PANCREASE:- It is mixo crime gland. It secrets
PANCREATIC JUICE which perform following functions:-
I. NaHCO3:- Makes the food alkaline
II. Pancreatic Amylase:- It digest starch & lipids into
maltose & isomaltose
III. Trypsin:- Trypsin digests protein.
IV. Villi:- The digested food is taken up by the walls of the
intestine. The inner lining of the small intestine has
numerous finger like projections called VILLI which
increase the surface area for absorption. The villi are
richly supplied with blood vessels which takes the
absorbed food to each and every cell of the body.
13

14.  LARGE INTESTINE:- Large intestine is wider than small
intestine. It has three parts CALON, CAECUM and
RECTUMN. It absorbs water from the undigested food and
secret mucus.
14

15. Q. What are the three different pathways in which glucose molecules breaksdown
and provide energy?
GLUCOSE 2PYRUVADES
CO2 + H2O
C2H5OH
Lactic Acid
Aerobic
O2
Anaerobic
Lack Of O2
In
Cytoplasm
15

16.  It is the process to generate energy for
our metabolic activities, by breaking
down of glucose.
 TYPES OF RESPIRATION:-
1. Aerobic Respiration
2. Anaerobic Respiration
16

17. AEROBIC RESPIRATION ANAEROBIC RESPIRATION
1. It takes place in presence of oxygen. 1. It takes place in absence of oxygen.
2. End Product is CO2 & H2O. 2. End product is C2H5OH.
3. Energy Released in large amount. 3. Energy released in lesser amount.
4. It takes place in both cytoplasm &
mitochondria
4. It takes place only in cytoplasm.
17

18.  In human beings, air is taken into the body through the
nostrils. The air passing through the nostril is filtered by fine
hairs that line the passage. The passage is also lined with mucus
which helps in this process. From here, the air passes through the
throat and into the lungs. Rings of cartilage are present in the
throat. These ensure that the air passes does not collapse, within
the lungs, the passage divides into smaller and smaller tubes
which finally terminate in a balloon like structure which are
called ALEOLI. The exchange of gases take place. The wall of the
alveoli contains a extensive network of blood vessels. The blood
brings CO2 from the rest of the body for relax into the alveoli and
the oxygen in the alveolar air is taken up by the blood in the
alvocular blood vessel to be transported to all the cell on the body
18

19. 19

20.  Tissue fluid it contain plasma, proteins and blood cells
(expect RBC) it is colour less. It carries digested and
absorbed fats from intestine and provide to cells.
20

21. ARTERY VEIN
1. The blood vessels which carry blood
from heart to organ are called artery.
1. The blood vessels which brings blood
to the heart are called vein.
2. Arteries carry oxygenated blood
expect palmary artery.
2. Vein carry deoxygenated blood
expect pulamy vein.
3. Artery doesn't have value.
3. Vein have value of present backward
flow of blood.
4. Artery have thick walls. 4. Vein have thin walls.
21

22.  The force that blood exerts against the wall of a vessel is
called BLOOD PRESSURE. The normal systolic pressure
is absent 120mm of hg and diastolic pressure is 80mm of hg.
 The blood have platelet cell which circulate around the
body and plug these leak by helping to clot the blood at
these points of injury
22

23. 23

24.  In plants vascular bundles are responsible for transportation.
1. Transportation of water is done by XYLEM TISSUE
2. Transportation of food is done by PHLOEM TISSUE
24

25.  At roots the cells on contact with soil actively absorb
ions, due to this difference in concentration of ions created.
So, water moves into the roots.
25

26. Transpiration help in the
absorption and movement of water
& minerals dissolved in it during
the day time when this stomata are
open, the transpiration pull
becomes the major driving pull in
the movement of water in XYLEM.
26

27.  The transport or soluble product of photosynthesis is
called translocation. It is done by PHOELUM TISSUE.
27

28.  It is consist of 1. PAIR OF KIDNEYS
2. URETER
3. URINARY BLADDER
4. URETHRA
 The process of getting
28

29. Submitted By:- Abhinav Jain Class:- X – A Roll No.:- 01