This document discusses the main biological macromolecules - carbohydrates, fats, and proteins. It states that these macromolecules are made up of smaller molecules, such as carbohydrates from monosaccharides like glucose, proteins from amino acids, and fats from fatty acids and glycerol. The document also notes that the body breaks down these large molecules into smaller molecules through hydrolysis and lists the chemical elements that make up each macromolecule - carbohydrates contain C, H, O, fats contain C, H, O, and proteins contain C, H, O, N, and sometimes S. It provides examples of foods rich in each macromolecule and describes some of their main

1. Biological Molecule

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Macromolecules
Carbohydrates
Fats
Proteins

3. Objectives of The Lesson
∙ List the chemical elements that make up: carbohydrates,
fats and proteins
∙ State that large molecules are made from smaller
molecules, limited to:
(a) Starch, glycogen and cellulose from glucose
(b) Proteins from amino acids
(c) Fats and oils from fatty acids and glycerol

4. How our bodies break
down the foods we eat?
Our Bodies will break down large molecules into
smaller molecules By Hydrolisis

5. GAMES
https://www.liveworksheets.com/fz2517068es

7. FAT
FAT
FAT
FAT
PROTEIN
PROTEIN
CARBOHYDRATE
CARBOHYDRATE
CARBOHYDRATE
CARBOHYDRATE
CARBOHYDRATE
CARBOHYDRATE

8. ▣
Classification (Monomer and Polymer):
Macromoleculs Monomer Polymer
Carbohydrates Monosaccharide Polysaccharide
Fats Fatty Acids,
Glycerol
Lipids
Proteins Amino Acids Polypeptide

9. ▣
Chemical Elements:
Macromoleculs Chemical Elements
Carbohydrates C, H, O
Fats C, H, O
Proteins C, H, O, N and Sometimes S

10. What do these pictures contain?

11. Food rich in carbohydrates

12. CARBOHYDRATES
01

13. Large molecules are made from smaller molecules
Made up of smaller molecules : sugars or monosaccharides.
e.g. glucose, fructose … we call them simple sugars
Two sugars combined together are called disaccharides e.g. Sucrose (table
sugar) = glucose + fructose, Lactose (milk sugar) = glucose + galactose, Maltose
(malt sugar) = glucose + glucose
Many sugars bonded together make a polysaccharide
e.g. starch, cellulose, glycogen.
Carbohydrates
Plant cells
for storage
Plant cell walls
For give
structure
Animal cells for storage
animals (mostly found in the
muscle tissue)

14. ▣ Chemical Elements
Carbohydrate :
Carbohydrate molecules contain chemical elements : C, H, O

15. Carbohydrates serve as the main
source of fuel energy for all living
beings, they are the main metabolic
fuel of plants, animals, and humans.
Functions of Carbohydrate

16. GAMES
Code Quizziz 51170941

17. What do these pictures contain?

18. Foods rich in fat

19. FATS
02

20. Fat molecules contain C,H,O
Fat molecule contains one glycerol
and three fatty acids
◾ Glycerol
�Three carbon alcohol
◾ Long chain fatty acids (carbon
chain)
▣ Chemical Elements Fats :

21. Functions of Fats
1. Fats serve to store energy and provide
thermal insulation to plants and animals.
2. Fats are needed to:
Make cell membranes of cells
3. Good energy storage
4. Act as a heat insulator under the skin
5. Protect some organs

22. What do these pictures contain?

23. Food rich in protein

24. PROTEINS
03

25. Chemical Elements Proteins :
Protein molecules contain elements: C,H,O,N (S,P)
Proteins are made of smaller molecules called amino acids.
Two amino acids bonded together are called dipeptides.
Many amino acids bonded together make a polypeptide.

26. a. Helps to repair damaged cells and tissues
b. Needed by the body for healthy grow
Functions of Proteins

28. Complete the table by comparing carbohydrates, fats, and proteins
in terms of chemical elements, classification and functions.
Write your answer on sheet of paper!!
Terms Carbohydrates Fats Proteins
Chemical Elements
Classification
(Monomer and
Polymer)
Functions

29. Thanks
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