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BIOLOGY BSC 2011 UPDATED EXAM QUESTIONS AND CORRECT WELL EXPLAINED AND VERIFIED ANSWERS LATEST UPDATE GRADE A+
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Class notes 21ubc03 (21ubc03) Textbook of Biochemistry for Medical Students, ISBN: 9789350905302
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BNCHAPTER 20
MINERALS
1) INTRODUCTION TO MINERALS
2) CLASSIFICATION OF MINERALS
3) CALCIUM
4) PHOSPHORUS
5) MAGNESIUM
6) SODIUM
7) POTASSIUM
8) IRON
9) COPPER
10) ZINC
11) FLUORINE
12) IODINE
13) SELENIUM
14) CHROMIUM
15) COBALT
,16) CHLORINE
17) MANGANESE
18) MOLYBDENUM
19) NICKEL
20) SULFUR
21) LITHIUM
, MINERALS
INTRODUCTION
1. There are 29 different types of elements in our body
2. The mineral elements constitute only a small proportion of the body
weight and there is a wide variation in their body content
3. Minerals perform several vital functions which are absolutely essential
for the existence of man
4. These functions include calcification of bone, blood clotting,
neuromuscular irritability, acid base balance and water-electrolyte
balance
CLASSIFICATION
The elements of the body are divided into 5 major groups
GROUP 1
1. These are components of macromolecules such as carbohydrates, proteins
and lipids.
2. Examples
a) Carbon (C)
b) Hydrogen (H)
c) Oxygen (O)
d) Nitrogen (N)
, GROUP 2
1. These are nutritionally important minerals or principal elements
2. Their daily requirement is more than 100 mg
3. Their deficiency can prove fatal
4. They are also known as macro elements
5. Examples
Sodium (Na)
Potassium (K)
Chloride (Cl)
Calcium (Ca)
Phosphorus (P)
Magnesium (Mg)
Sulfur (S)
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