Worksheetsgrade10 science unit1 Chemical Basis of Life
Total questions: 21
Worksheet time: 14mins
Organic compounds that build up the living body or living matter are known as
(a)
Common molecular formula of carbohydrate is
Cx (H2 O) y
2 C6 H12O6
NH
Which is known as fruit sugar?
Galactose
fructose
maltose
Examples for disaccharides are:
Glucose,fructose and Galactose
Cellulose, Starch and Glycogen
Maltose, Sucrose and Lactose
Which is not the significance of carbohydrate?
As an energy Source
To maintain the body temperature
As a constituent of Nucleic acid
All above are correct
Elements that are present in the protein are
Carbon (C), Hydrogen (H), Oxygen (O), Nitrogen (N) and Phosphorous (P).
Carbon, Hydrogen and Oxygen
Carbon(C) Hydrogen (H), Oxygen (O) and Nitrogen (N) Sometimes Sulphur
There are two types of Nucleic acids
(a)
which element have the function of transmission of nerve impulses?
potassium
magnesium
Calcium
Lack of which vitamin cause Anemia disease ?
Vitamin A
Vitamin B
Vitamin C
Which belongs to monosaccharide?
1. Fructose
2. Sucrose
3. Maltose
4. Lactose
What is the test used to identify the presence of lipids?
Biurete test
Sudan III test
Starch test
mature human body is composed of ------ precentage of proteins?
(a)
Put the answers correctly
1.Protein present in muscles?
2.Protein present in Hairs ?
3.Protein present in wheat?
Myosin, Legumin, Albumin
Osein, Keratin, Albumin
Myosin, Keratin, Gluten
What is known as enzymes?
(a)
Fatty acids can be divided into two groups What are they?
(a)
Each nucleotide is made up of 3 components What are they?
(a)
An advantage of containing fibres in food is,
1. Low risk in cancers in large intestine
2. Prevent constipation
3. Helps, control blood sugar level
What is marco elements?
(a)
What is Trace elements?
(a)
Which of the below food contains fat?
Roti
Groundnut
Meat
which mineral is essential for milk production?
Pottasium
calcium
magnesium
