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LIFE PROCESSES:

ALL IN ONE

MARATHON

LIFE

PROCESSES

Excretion Digestion Circulation Respiration

6CO2+ 12H2O

Light phase Light dependent

STEPS OF PHOTOSYNTHESIS

C6H12O6+ 6H2O + 6O

Dark phase Light independent

Absorption of light energy Photolysis Formation of NADPH, ATP, O Fixation of carbon to carbohydrate Does not require light to carry out reactions Takes place in stroma

Egestion Ingestion

DIGESTION IN AMOEBA

Assimilation Absorption Digestion

DIGESTION IN HUMAN

Mouth Liver Stomach Small intestine Large intestine

• • Teeth: Helps in chewing of food Tongue: Helps in mastication of chewed food Saliva: Produces salivary amylasethat helps in digestion of carbohydrate in food Performs peristalsis for movement of food Secretes bile juice for fat digestion which is stored in the gall bladder Secretes digestive juices, hydrochloric acids and mucus Produces pepsinfor protein metabolism Digests and absorbs nutrients with the help of villi Absorbs water and salts and helps in egestion of undigested food through the anus Oesophagus•

LIFE

PROCESSES

Excretion Digestion Circulation Respiration

Pharynx 3 4 Nostril Larynx Trachea Bronchus Lungs

HUMAN RESPIRATORY SYSTEM

(^7) Bronchioles 8 Alveoli

Inspiration is the process of taking air in the lungs.

MECHANISM OF BREATHING

Expiration is the process of exhaling air out of the lungs

Inspiration Expiration

Process of taking air in and out from the lungs is called breathing.

XYLEM

Components: tracheids, vessels, xylem parenchyma and xylem fibers Function: Transport of water

PHLOEM

Components: sieve tubes, companion cells. parenchyma, phloem fibres Function: Transport of food The process by which water and necessary nutrients needed for its survival reach all parts of the plant is called transport in plants.

TRANSPORT IN PLANTS

VASCULAR BUNDLES

Blood Plasma RBCs WBCs Platelets Blood vessel Arteries Veins Capillaries Heart

COMPONENTS OF BLOOD

Superior vena cava Inferior vena cava Pulmonary valve Right atrium Tricuspid valve Bicuspidvalve Right ventricle Pulmonary arteries Pulmonary veins Left atrium Aortic valve Left ventricle Aorta

HUMAN HEART

LYMPH

The tissue fluid which seeps through thewalls of capillaries Maintains fluid balance Improve immunity Carries digested and absorbed fats from the extracellular space back into the blood.

Functions of Lymphatic System

LIFE

PROCESSES

Excretion Digestion Circulation Respiration