Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

MEDIUM

Earn 100

Mention the composition of NPK fertilizers.

Important Questions on Mineral Nutrition

EASY

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

The following metal ion activates many enzymes, participates in the oxidation of glucose to produce

ATP

and with

Na

, is responsible for the transmission of nerve signals.

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Match List - I with List - II.

List - I		List -II
(a)	$Li$	(i)	absorbent for carbon dioxide
(b)	$Na$	(ii)	electrochemical cells
(c)	$KOH$	(iii)	coolant in fast breeder reactors
(d)	$Cs$	(iv)	photoelectric cell

Choose the correct answer from the options given below:

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Match List-I with List-II:

	List-I		List-II
A.	K	I.	Thermonuclear reactions
B.	KCI	II.	Fertilizer
C.	KOH	III.	Sodium potassium pump
D.	Li	IV.	Absorbent of ${CO}_{2}$

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

The correct statement(s) among

I

to

III

with respect to potassium ions that are abundant within the cell fluids, is/are

I .

They activate many enzymes.

II .

They participate in the oxidation of glucose to produce

ATP

.

III .

Along with sodium ions, they are responsible for the transmission of nerve signals.

EASY

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Which of the following gives sodium hydroxide along with hydrogen gas in reaction with water?

EASY

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Molten sodium is used in nuclear reactors to:

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Match List $I$ with List $II$ and select the correct answer using the codes given below the lists.

List $I$ (Element)		List $II$ (Use)
A.	$Li$	1.	Timekeeper in atomic clocks
B.	$Na$	2.	Batteries
C.	$K$	3.	Transfer of nerve impulses
D.	$Cs$	4.	Control of the water content in the blood

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

List the uses of lithium metal.

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Represent the union of two sets by Venn diagram for each of the following.

$X = {x | x$ is a prime number between $80$ and $100}$

$Y = {y | y$ is an odd number between $90$ and $100}$

EASY

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Which of the following metals is most commonly used in photochemical cells?

EASY

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Which of the following liberates

H_{2}

with cold water?

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

________ acts as a buffer in maintaining acidbase balance of body fluids.

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Explain the significance of sodium, potassium, magnesium and calcium in biological fluids.

EASY

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Washing soda is _________.

HARD

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Discuss the biological importance of

{Na}^{+}

and

K^{+}

ions.

EASY

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Baking powder used to make cake is a mixture of starch,

{NaHCO}_{3}

and

Ca {(H_{2} {PO}_{4})}_{2}

. The function of

Ca {(H_{2} {PO}_{4})}_{2}

is:

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

An alloy of

Na

and

K

is:

EASY

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

${NaNO}_{3}$ is not used as a gunpowder because it is:

EASY

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

On a commercial scale, sodium hydroxide is prepared by:

HARD

Biology>Plant Physiology>Mineral Nutrition>Mineral Toxicity

Enlist some important uses of sodium and potassium metals.