Mineral Nutrition Test

Result

Mineral Nutrition Test - 3

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which of the following ions are obtained by a plant from the soil to make chlorophyll and NAD, respectively?

A
Phosphorous and magnesium

B
Magnesium and phosphorous

C
Manganese and nitrogen

D
Nitrogen and manganese

Solution

Plants need magnesium to synthesise chlorophyll and phosphorus to make NAD, respectively.
Question 2
1 / -0

Which of the following minerals are required by cells to catalyse the reactions involving evolution of O₂, transfer of electrons to PSII and biosynthesis of auxins, respectively?

A
Chlorine, manganese and zinc

B
Zinc, chlorine and manganese

C
Manganese, chlorine and zinc

D
Chlorine, zinc and manganese

Solution

In plants, manganese is required during evolution of O₂ in photosynthesis. Chlorine plays a prominent role in the transfer of electrons to PSII and zinc is involved in the biosynthesis of auxins.
Question 3
1 / -0

Which of the following reactions is catalysed by Nitrobacter in nitrogen cycle?

A
Conversion of di-nitrogen to nitrogen oxide

B
Conversion of ammonia to nitrite

C
Conversion of nitrite to nitrate

D
Conversion of atmospheric nitrogen to ammonia

Solution

Nitrite is oxidised to nitrate with the help of Nitrobacter.
Question 4
1 / -0

Which of the following organisms is a symbiotic N₂ fixer associated with non-leguminous angiospermic plants?

A
Nostoc

B
Rhizobium

C
Azotobacter

D
Frankia

Solution

Frankia is a symbiotic N₂ fixer that is associated with non-leguminous plants like Casuarina. Frankia is a filamentous bacterium.
Question 5
1 / -0

Mohan noticed marginal and interveinal chlorosis of leaves in a crop grown on a particular field. The soil had adequate levels of Ca, Fe and Mg, all the elements whose deficiency can lead to chlorosis. The problem with the soil could be

A
excess of manganese in the soil

B
excess of molybdenum in the soil

C
excess of zinc in the soil

D
deficiency of phosphorous in the soil

Solution

Interveinal and marginal chlorosis of leaves could be due to excess of manganese in the soil. Manganese competes with iron and magnesium for uptake and for binding with enzymes. It also inhibits calcium translocation in shoot apex that leads to deficiency of these three nutrients in the plants.
Question 6
1 / -0

The rapid uptake of ions into the apoplast takes place by all methods, except

A
diffusion

B
mass flow

C
active absorption

D
ionic exchange

Solution

Entry and exit of ions from the symplast requires expenditure of metabolic energy. It happens by active absorption.
Question 7
1 / -0

During root nodule formation, modification of bacteria into rod-shaped bacteroides takes place in

A
root hair

B
pericycle

C
inner cortex

D
outer cortex

Solution

The bacteria get modified into rod-shaped bacteroides in the inner cortex of root. They cause inner cortical cells and pericycle to divide and form nodules.
Question 8
1 / -0

Which of the following statements about hydroponics is false?

A
Hydroponics does not require technical expertise.

B
Desired nutritive ambience can be created for hydroponics.

C
Pathogens can be controlled in hydroponics.

D
Replacement of nutrients can be done periodically in hydroponics.

Solution

Hydroponics requires technical skills of high quality.
Question 9
1 / -0

Which of the following is the criterion of tagging any mineral ion as toxic?

A
Reduction in weight of tissues by 5%

B
Reduction in weight of tissues by 10%

C
Reduction in weight of tissues by 1%

D
Reduction in weight of tissues between 5 - 10%

Solution

Any mineral concentration that reduces the dry weight of tissues by about 10% is considered toxic.
Question 10
1 / -0

Which of the following pairs is incorrect?

A
Azotobacter - Non-symbiotic and heterotrophic N₂ fixer

B
Rhodospirillum - Non-symbiotic and anaerobic N₂ fixer

C
Rhizobium meliloti - Symbiotic and heterotrophic N₂ fixer

D
Anabaena - Symbiotic and autotrophic N₂ fixer

Solution

Anabaena is a free living algae which performs nitrogen fixation. Thus, this pairing is wrong.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Mineral Nutrition Test - 3

Result

Mineral Nutrition Test - 3

Score

-

Rank

-

SHARING IS CARING

Question 1

Phosphorous and magnesium

Magnesium and phosphorous

Manganese and nitrogen

Nitrogen and manganese

Solution

Question 2

Chlorine, manganese and zinc

Zinc, chlorine and manganese

Manganese, chlorine and zinc

Chlorine, zinc and manganese

Solution

Question 3

Conversion of di-nitrogen to nitrogen oxide

Conversion of ammonia to nitrite

Conversion of nitrite to nitrate

Conversion of atmospheric nitrogen to ammonia

Solution

Question 4

Nostoc

Rhizobium

Azotobacter

Frankia

Solution

Question 5

excess of manganese in the soil

excess of molybdenum in the soil

excess of zinc in the soil

deficiency of phosphorous in the soil

Solution

Question 6

diffusion

mass flow

active absorption

ionic exchange

Solution

Question 7

root hair

pericycle

inner cortex

outer cortex

Solution

Question 8

Hydroponics does not require technical expertise.

Desired nutritive ambience can be created for hydroponics.

Pathogens can be controlled in hydroponics.

Replacement of nutrients can be done periodically in hydroponics.

Solution

Question 9

Reduction in weight of tissues by 5%

Reduction in weight of tissues by 10%

Reduction in weight of tissues by 1%

Reduction in weight of tissues between 5 - 10%

Solution

Question 10

Azotobacter - Non-symbiotic and heterotrophic N2 fixer

Rhodospirillum - Non-symbiotic and anaerobic N2 fixer

Rhizobium meliloti - Symbiotic and heterotrophic N2 fixer

Anabaena - Symbiotic and autotrophic N2 fixer

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.

Azotobacter - Non-symbiotic and heterotrophic N₂ fixer

Rhodospirillum - Non-symbiotic and anaerobic N₂ fixer

Rhizobium meliloti - Symbiotic and heterotrophic N₂ fixer

Anabaena - Symbiotic and autotrophic N₂ fixer