EASY
Earn 100

Which metal is present in chlorophyll?
Important Questions on Elements of Group 1 and Group 2
MEDIUM
The metal used for making X-ray tube window is:

EASY
Which of the following statements is false?

EASY
Which one of the following statements is correct?

EASY
Match list-I with list-II :
(a) | (i) | Treatment of cancer | |
(b) | (ii) | Extraction of metals | |
(c) | (iii) | Incendiary bombs and signals | |
(d) | (iv) | Windows of X-ray tubes | |
(v) | Bearings for motor engines. |
Choose the most appropriate answer, the option given below :

EASY
The following metal ion activates many enzymes, participates in the oxidation of glucose to produce and with , is responsible for the transmission of nerve signals.

EASY
Match List with List
List | List | ||
(a) | (i) | Antacid | |
(b) | (ii) | Cement | |
(c) | (iii) | Bleach | |
(d) | (iv) | Plaster of paris |
Choose the most appropriate answer from the

EASY
The element playing significant role in neuromuscular function and interneuronal transmission is :

MEDIUM
State:
The compound found in tooth enamel.

EASY
is an important component of

EASY
The most abundant metal ion present in the human body is

EASY
The function of "Sodium pump" is a biological process operating in each and every cell of all animals. Which of the following biologically important ions is also a constituent of this pump?

EASY
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is

MEDIUM
The correct statement(s) among to with respect to potassium ions that are abundant within the cell fluids, is/are
They activate many enzymes.
They participate in the oxidation of glucose to produce .
Along with sodium ions, they are responsible for the transmission of nerve signals.

EASY
Which of the following metal is present in Chlorophyll?

HARD
Describe briefly the biological importance of Calcium and Magnesium.

MEDIUM
What are the uses of calcium and magnesium in human body?

EASY
Magnesium is an essential constituent of chlorophyll, the green colouring matter of plants.

HARD
Discuss the biological importance of and ions.

MEDIUM
It is the bones in our body which has the maximum proportion of our body mass. Which metal is the main constituents for these bones?

HARD
How much calcium is present in the human body?

