Metabolism

1.

METABOLISM

2.

Metabolic activities of the cell.
Metabolism is sum of the all biochemical
processes that occur in organism.

3.

4.

Metabolic reactions produce
different life processes such as:
Photosynthesis
Respiration
Movement
Growth
Reproduction

5.

Types of metabolism
ANABOLISM
CATABOLISM

6.

ANABOLISM
In anabolic reactions, simple
substances join to form more
complex substances.
Example can be photosynthesis in plants
Sunlight energy
Is used

7.

CATABOLISM
In catabolic reactions complex
substance are broken down into simple
substances.
Example can be cellular respiration in cell
C6H12O6+6O2
6H2O + 6 CO2+Energy

8.

9.

Why we need catabolic reactions?
Generally carbohydrates, lipids, proteins,
nucleic acids are broken down to yield
energy and also to get raw materials for
building up needed molecules.

10.

Stages of catabolism
1) digestion and hydrolysis of
macromolecules up to monomers
2) conversion of monomers to acetylCoA
3) Krebs cycle, Electron transport chain,
synthesis of ATP

11.

During first stage
Carbohydrates are broken down into
monosaccharides ( generally glucose)
Lipids are broken down up to glycerol and fatty
acids
Proteins are broken down up to amino acids
Nucleic acids are broken down up to nucleotides

12.

13.

During second stage
all monomers turn into Acetyl-CoA

14.

During the third stage
Acetyl-CoA
enter to Krebs
cycle and ETS
After ETS ATP
is produced

15.

Let’s do the activity on p. 73

16.

Homework
Read p.72-73
Answer to literacy questions on p 73.
New words