Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MFS > Mineral Nutrition Of Plants > Flashcards

Mineral Nutrition Of Plants Flashcards

1
Q

What is nutrient element

A

Is one that is required to complete the lifecycle of an organism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Soil nutrient element which are distributed in different discrete chemical forms exists in which state

A

Dynamic equilibrium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

“Soil available from of a nutrient is that fraction whose variation in amount is responsible for significant changes in yield and response”This is given by

A

Bray (1948)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Nutrient available to biological organism

A

Bioavailable nutrient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Mineral elements which stimulate plant growth but are not Essential but only essential for a few plant is called

A

Beneficial element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Beneficial element example

A

Silicon,sodium, aluminium,cobalt,selenium,vanadium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Functional nutrient termed by

A

Nicholas 1961

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the definition of functional element

A

That plays role in plant metabolism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Trace elements

A

Element found in low concentrations
Less than 1 ppm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Tracer element

A

Radioisotope or stable isotope of an element used for tracing its path in a system to study it’s mechanism of its interaction with the system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Heavy metal

A

Metal having specific gravity 5.0 or having atomic number higher than 20

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Any metal higher than calcium is a which metal

A

Heavy metal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Nutrient content

A

Concentration of nutrient or its amount per unit weight of a plant tissue is termed as nutrient content

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How to convert percentage to ppm

A

By multiplying with 10^ 4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Nutrient accumulation

A

Storage of a nutrient in a part of portion of the plant is called nutrient accumulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Nutrient uptake

A

Amount of nutrient taken up by the growing crops from either the soil or other source is called nutrient uptake.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Nutrient removal

A

The nutrient contained in the harvested portion of the crop is termed as the nutrient removed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Essential nutrients

A

Elements needed by the plant without which it will not be able to survive.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Criteria of essentiality given by

A

Arnon and stout (1939)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Essential nutrients

A

C,H,O,N,P,K,Ca,Mg,S,Fe,Mn,Zn,Cu,B,Mo,Cl,Ni

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Latest addition to the list of Essen nutrients are done in

A

1987

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Micronutrients

A

Required in less quantities

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Macronutrients e

A

C,H,O,N,P,K, Ca,Mg,S

24
Q

H and O contains how much amount of the plant dry matter

A

90-95%

25
Q

Primary nutrients

A

Required in larger amount(NPK)

26
Q

Secondary nutrient

A

Required in moderate amount (Ca,Mg,S)

27
Q

Micronutrients

A

Which are required in relatively smaller quantities

28
Q

Example of micronutrients

A

Fe,Mn,Zn,Cu,B,Mo,Cl,Ni

29
Q

Examples of micronutrients anion

A

B,Mo,Cl

30
Q

Examples of micronutrients cation

A

Fe,Mn,Zn,Cu,Ni

31
Q

Nitrogen is absorbed by plant roots as

A

NO3-

32
Q

In case of rice nitrogen is absorbed as

A

NH4+

33
Q

Concentration of Nitrogen

A

1-5%(10000-50000 ppm or mg/kg)

34
Q

Which nutrient is most often deficient in soil

A

Nitrogen

35
Q

Which is a major component of plant cell and cell wall

A
36
Q

The latter contains

A

5% N

37
Q

Which is an essential component of amino acid, protein, nucleic acid,porphyrins,flavins,purines,pyrimidines, nucleotides

A

Nitrogen

38
Q

Nitrogen containing chlorophyll in the presence of solar energy fixes atmospheric CO2 as

A

Carbohydrates

39
Q

What is responsible for the transfer of genetic code to the offspring

A

Nitrogen

40
Q

Which nutrient improves the quality of leafy vegetables

A

Nitrogen

41
Q

Which fertilization improves protein quality of the food grain and by enhancing which proportion

A

Nitrogen(glutamic acid,proline,phenylalanine,cystine, methionine,and tyrosine )

42
Q

What are the things whose amount can be decreased by using nitrogen

A

lysine, histidine,arginine, aspartic acid , aspartic acid,threonine, glycine,valine and leucine

43
Q

Plant having how much percentage of nitrogen are regarded as nitrogen deficient

A

Less than 1%

44
Q

Main symptoms of Nitrogen deficiency

A

Stunted growth

45
Q

Nitrogen deficiency symptoms first occurs in

A

Older leaves(light green to pale yellow coloration- through proteolysis)

46
Q

Reduction in crop yield,protein content and flowering are associated with

A

N-deficiency

47
Q

Succulence of the plant increases by

A

Large nitrogen availability

48
Q

Which is the second most abundant mineral in human body

A

Phosphorous

49
Q

Plant absorb phosphorus as

A

Dehydrogen orthophosphate ion (H2PO4)

50
Q

Under neutral to alkaline environment phosphorous is taken up as

A

Monohydrogen orthophosphate (HPO4 ^2-)

51
Q

P gets absorbed in which organic form

A

Nucleic acid and phytins

52
Q

In normal p sufficient plant p content varies from

A

0.1-0.4% by weight which is 1/5th to 1/10th of N and K

53
Q

Which are the energy currency of the cell

A

Atp and Adp

54
Q

Energy stored by ATP

A

12 Kcal energy per mole contained in two pyrophosphate bond between 3 p molecules

55
Q

Which is designated as p deficient

A

0.1% or 100 ppm

56
Q

Why p easily translocate from older tissue to meristematic tissue

A

Because of the faster mobility in plant

MFS (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions