Select Question Set:
- 1(current)
Q. No.Which of the following statements is false?
| 1. | Ca2+ ions are important in blood clotting |
| 2. | Ca2+ ions are not important in maintaining the regular beating of the heart |
| 3. | Mg2+ ions are important in the green parts of plants |
| 4. | Mg2+ ions form a complex with ATP |
Subtopic: Biological Importance of S Block Elements and & Its Ore |
78%
Level 2: 60%+
NEET - 2016
Hints
Which of the following biologically important ions is also a constituent of the sodium pump?
1. Ca2+
2. Mg2+
3. K+
4. Fe2+
Subtopic: Biological Importance of S Block Elements and & Its Ore |
88%
Level 1: 80%+
NEET - 2015
Hints
(a) Limestone- used in the preparation of lime and cement.
(b) Cement- used in plastering and in construction of bridges.
(c) Plaster of paris- It is used in surgical bandages.
The one which is correctly matched with its uses is-
1. a,b
2. b,c
3. c
4. a,b,c
Subtopic: Compounds of Ca and Na -Preparations, Properties & Uses | Biological Importance of S Block Elements and & Its Ore |
78%
Level 2: 60%+
Hints
Match List I with List II for the composition of substances and select the correct answer using the code given below:
| List-I Substances |
List-II |
| (A) Plaster of paris | (i) CaSO4. 2HO |
| (B) Epsomite | (ii) CaSO4.½H2O |
| (C) Kieserite | (iii) MgSO4.7H2O |
| (D) Gypsum | (iv) MgSO4.H2O |
| (v) CaSO4 |
Code :
| (A) | (B) | (C) | (D) | |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (iii) | (iv) | (i) | (ii) |
| 3. | (ii) | (iii) | (iv) | (i) |
| 4. | (i) | (ii) | (iii) | (v) |
Subtopic: Biological Importance of S Block Elements and & Its Ore |
87%
Level 1: 80%+
AIPMT - 2011
Hints
Match the following:
| Element | Biological Significance |
| (a) Sodium | (i) Oxidation of glucose to produce ATP. |
| (b) Potassium | (ii) Helps in transporting sugars and amino acids into the cells. |
| (c) Magnesium | (iii) Helps in the coagulation of blood. |
| (d) Calcium | (iv) Helps in building and strengthening bones. |
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (i) | (iv) | (iii) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (iv) | (ii) | (i) | (iii) |
| 4. | (iii) | (i) | (iv) | (iii) |
Subtopic: Biological Importance of S Block Elements and & Its Ore |
Level 3: 35%-60%
Hints
Links
Which one of the following statements is correct?
| 1. | Mg plays role in neuromuscular function and interneuronal transmission. |
| 2. | The daily requirement of Mg and Ca in the human body is estimated to be 0.2-0.3 g. |
| 3. | All enzymes that utilize ATP in phosphate transfer require Ca as the cofactor. |
| 4. | The bone in the human body is an inert and unchanging substance. |
Subtopic: Biological Importance of S Block Elements and & Its Ore |
Level 3: 35%-60%
NEET - 2023
Hints
Select Question Set:
- 1(current)
Q. No.
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