Order the letters in the word

1. ZYENMES speed up biochemical reactions.

2. TAMINVIS are regulator molecules.

3. HYDCARRATESBO are primary energy source for all organisms.

4. ORGINANIC NDSCOUPOM do not have a carbon skeleton.

5. PIDLIS are secondary source of energy for organisms.

 

 

Find 17 words on the theme “The chemistry of life”. Words can be placed horizontally, vertically and diagonally

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Match the sentence halves

1. Inorganic compounds	a) require water
2. All life processes	b) are called sugars
3. The major groups of biologically important compounds are	c) cause some disorders, such as arteriosclerosis
4. Some of carbohydrates	d) do not have a carbon skeleton
5. In the human body, excess fat can	e) are structural compounds for all organisms
6. Proteins	f) carbohydrates, proteins, lipids, vitamins, hormones and nucleic acids
7. Atoms are	g) carbon, hydrogen, oxygen and nitrogen make up 96% of an organic body
8. Four basic elements	h) cause scurvy-teeth, skin and blood vessel disorders
9. The deficiency of Ascorbic acid	i) green vegetables, tea made by intestinal bacteria
10. You can get Phylloquinone from	j) composed of protons, neutrons and electrons
11. Vitamins	k) are biological catalysts
12. Enzymes	l) carries a message from the pancreas to body cells to balance glucose level of the blood
13. Hormones	m) control all life activities in the cell
14. Insulin	n) regulate normal growth and development
15. Nucleic acids	o) are chemical meengers in organisms

 

 

Fill in the gaps

accumulation ;     keratin ;     lipids ;   atoms;   speed up;    vitamins ;  tocopherol;  proteins; fats;   DNA and RNA ;  chemical bonds;   glucose;   nucleic acids;   carbon;  enzymes ; carbohydrates;   organic compounds;   hormones;    bone growth ;    minerals ;    compounds ;                                       carbon hydrogen oxygen nitrogen;  protons neutrons electrons ; inorganic compounds               

 

1. Four basic elements, ………., …………., ……………., ………. make up 96% of an organism’s body.

2.…….are the simpliest units of elements.

3. Atoms are composed of ……….., ………..and …………….

4. Different atoms are joined by……………. to form compounds.

5.……………… are divided into two main types inorganic and organic.

6.……….do not have a carbon skeleton.

7.…….is the most important inorganic compound.

8.………are needed for normal growth and development.

9. Calcium and potassium are minerals needed for ……………..

10.……..is the central component of all organic compounds.

11. The major groups of biologically important…………are carbohydrates, proteins, lipids, vitamins, enzymes, and nucleic acids.

12.………………..are the primary energy source of all organisms.

13.………..is very important for brain cells.

14.……..are the secondary source of energy for organisms.

15.………also have protective and supportive functions in organisms.

16. Arteriosclerosis, which is the …………. of that molecules on the walls of blood vessels.

17.……….. are the structural compounds of all organisms.

18. Hair and fingernails are made up of a protein called………..

19.………..are regulator molecules.

20.………..are biological catalysts.

21. Enzymes……….biochemical reactions.

22.………..carry message from one organ to another organ.

23.……………control all life activities in the cell.

24.………..are nucleic acids found in the cells.

25. Vegetables oils, nuts seeds are sources of…………..

 

Mini project.

Group A Study Figure 1 on page 15.

A. What do the following numbers in the box refer to?

96 150 4 1.6 20 19 28 115 60 15

B. Prepare a short presentation on the theme ‘What an adult human body contains’ Include in your presentation additional information.

 

Figure 1

 

Group B

Study Table 1 on page 16

A. Answer the questions

1. What does deficiency of Retinol cause?

2. Which products are the sources of Folic acid?

3. What does deficiency of Tocopherol cause?

4. What regulates normal growth and development?

 

B. Prepare a short presentation on the theme ‘Vitamins’. Include in your presentation additional information.

 

 

Table 1 Vitamins

 

VITAMINS	SOURCES	EFFECTS OF DEFICIENCY
A (Retinol)	Milk, Butter, Carrots, Fresh vegetables	Night blindness; Dry, scaling skin
B-1 (Thiamine)	Legumes, Peanuts, Liver	Beriberi-Nerve disorders
B-9 (Folic acid)	Liver, Legumes, Oranges, Green vegetables	Anemia, Birth defects
C (Ascorbic acid)	Fruits and Vegetables, Cabbage, Tomatoes	Scurvy-Teeth, Skin and Blood vessel disorders
D (Calcipherol)	Fish oil, Milk, Egg yolk	Rickets-Bone disorders
E (Tocopherol)	Vegetable oils, Nuts Seeds	Nerve damage, Reduced fertility
K (Phylloquinone)	Green vegetables, Tea made by intestinal bacteria	Slow blood clotting

 

                                                    

Text for additional reading

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