QBManager

Ecosystem

260339 Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D) Identify the blanks
original image
Options :

1 A = Rock minerals; B = Detritus; C = Litter fall; D = Producers

2 A = Litter fall; B = Producers; C = Rock minerals; D = Detritus

3 A = Detritus; B = Rock minerals; C = Producer; D = Litter fall

4 A = Producers; B = Litter fall; C = Rock minerals; D = Detritus

AIPMT-2014

Ecosystem

260345 Study the model of phosphorus cycle
(I) Rock Minerals
(II) Producers
(III) Detritus
(IV) Soil solution
(V) Consumers
original image
Identify the $A, B, C, D$ and $E$
Options :

1 A-IV B-V C-III D-II E-I

2 A-II B-IV C-I D-V E-III

3 A-II B-V C-III D-IV E-I

4 A-III B-V C-I D-II E-IV

AP EAMCET-28.04.2017 Shift-I

Ecosystem

260347 Assertion (A): The eutrophication of water is attributed to nitrates and phosphates Reason (R): They are the chief plant nutrients Options:

1 Both

A

and

R

are correct and

R

is the correct explanation of

A

2 Both

A

and

R

correct and

R

is not the correct explanation of

A

3

A

is correct but

R

is wrong

4

A

is wrong but

R

is correct

Explanation:

Eutrophication is a process where by water bodies receive excessive amounts of nutrients, which results in excessive plant growth (like algal bloom).
Mainly aries from the oversupply of phosphate and nitrate nutrients.
The nitrogen and phosphorus are often limiting factors in plant growth. Therefore they are used in fertilizers to improve plant growth. Thus the option (b) - A \& R are correct but $R$ is not correct explanation of $A$ .

AP EAPCET-07.09.2021 Shift-I

Ecosystem

260357 Nitrogen fixing bacteria converts

1

N_{2} \to {NH}_{3}

2

{NH}_{4}^{+} \to

Nitrates

3

{NO}_{2} \to {NO}_{3}

4

{NO}_{3} \to N_{2}

AIPMT-1999

Ecosystem

260332 The role of bacteria in carbon cycle is:

1 photosynthesis

2 chemosynthesis

3 decomposition of organic compounds

4 evolution of

O_{2}

Explanation:

The carbon cycle is a complex cyclical process through Which all of the carbon atoms in existence rotate. Carbon cycling occurs through Atmosphere Ocean \& through living and dead organisms. Bacteria also play an important role in carbon cycle involves decomposition or breakdown of the waste organic compound because decomposers contribute substantially to $CO 2$ pool by their processing of waste materials \& dead organic matter of land or ocean.
original image

AIIMS-2000

Ecosystem

260339 Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D) Identify the blanks
original image
Options :

1 A = Rock minerals; B = Detritus; C = Litter fall; D = Producers

2 A = Litter fall; B = Producers; C = Rock minerals; D = Detritus

3 A = Detritus; B = Rock minerals; C = Producer; D = Litter fall

4 A = Producers; B = Litter fall; C = Rock minerals; D = Detritus

AIPMT-2014

Ecosystem

260345 Study the model of phosphorus cycle
(I) Rock Minerals
(II) Producers
(III) Detritus
(IV) Soil solution
(V) Consumers
original image
Identify the $A, B, C, D$ and $E$
Options :

1 A-IV B-V C-III D-II E-I

2 A-II B-IV C-I D-V E-III

3 A-II B-V C-III D-IV E-I

4 A-III B-V C-I D-II E-IV

AP EAMCET-28.04.2017 Shift-I

Ecosystem

260347 Assertion (A): The eutrophication of water is attributed to nitrates and phosphates Reason (R): They are the chief plant nutrients Options:

1 Both

A

and

R

are correct and

R

is the correct explanation of

A

2 Both

A

and

R

correct and

R

is not the correct explanation of

A

3

A

is correct but

R

is wrong

4

A

is wrong but

R

is correct

Explanation:

Eutrophication is a process where by water bodies receive excessive amounts of nutrients, which results in excessive plant growth (like algal bloom).
Mainly aries from the oversupply of phosphate and nitrate nutrients.
The nitrogen and phosphorus are often limiting factors in plant growth. Therefore they are used in fertilizers to improve plant growth. Thus the option (b) - A \& R are correct but $R$ is not correct explanation of $A$ .

AP EAPCET-07.09.2021 Shift-I

Ecosystem

260357 Nitrogen fixing bacteria converts

1

N_{2} \to {NH}_{3}

2

{NH}_{4}^{+} \to

Nitrates

3

{NO}_{2} \to {NO}_{3}

4

{NO}_{3} \to N_{2}

AIPMT-1999

Ecosystem

260332 The role of bacteria in carbon cycle is:

1 photosynthesis

2 chemosynthesis

3 decomposition of organic compounds

4 evolution of

O_{2}

Explanation:

The carbon cycle is a complex cyclical process through Which all of the carbon atoms in existence rotate. Carbon cycling occurs through Atmosphere Ocean \& through living and dead organisms. Bacteria also play an important role in carbon cycle involves decomposition or breakdown of the waste organic compound because decomposers contribute substantially to $CO 2$ pool by their processing of waste materials \& dead organic matter of land or ocean.
original image

AIIMS-2000

Ecosystem

260339 Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D) Identify the blanks
original image
Options :

1 A = Rock minerals; B = Detritus; C = Litter fall; D = Producers

2 A = Litter fall; B = Producers; C = Rock minerals; D = Detritus

3 A = Detritus; B = Rock minerals; C = Producer; D = Litter fall

4 A = Producers; B = Litter fall; C = Rock minerals; D = Detritus

AIPMT-2014

Ecosystem

260345 Study the model of phosphorus cycle
(I) Rock Minerals
(II) Producers
(III) Detritus
(IV) Soil solution
(V) Consumers
original image
Identify the $A, B, C, D$ and $E$
Options :

1 A-IV B-V C-III D-II E-I

2 A-II B-IV C-I D-V E-III

3 A-II B-V C-III D-IV E-I

4 A-III B-V C-I D-II E-IV

AP EAMCET-28.04.2017 Shift-I

Ecosystem

260347 Assertion (A): The eutrophication of water is attributed to nitrates and phosphates Reason (R): They are the chief plant nutrients Options:

1 Both

A

and

R

are correct and

R

is the correct explanation of

A

2 Both

A

and

R

correct and

R

is not the correct explanation of

A

3

A

is correct but

R

is wrong

4

A

is wrong but

R

is correct

Explanation:

Eutrophication is a process where by water bodies receive excessive amounts of nutrients, which results in excessive plant growth (like algal bloom).
Mainly aries from the oversupply of phosphate and nitrate nutrients.
The nitrogen and phosphorus are often limiting factors in plant growth. Therefore they are used in fertilizers to improve plant growth. Thus the option (b) - A \& R are correct but $R$ is not correct explanation of $A$ .

AP EAPCET-07.09.2021 Shift-I

Ecosystem

260357 Nitrogen fixing bacteria converts

1

N_{2} \to {NH}_{3}

2

{NH}_{4}^{+} \to

Nitrates

3

{NO}_{2} \to {NO}_{3}

4

{NO}_{3} \to N_{2}

AIPMT-1999

Ecosystem

260332 The role of bacteria in carbon cycle is:

1 photosynthesis

2 chemosynthesis

3 decomposition of organic compounds

4 evolution of

O_{2}

Explanation:

The carbon cycle is a complex cyclical process through Which all of the carbon atoms in existence rotate. Carbon cycling occurs through Atmosphere Ocean \& through living and dead organisms. Bacteria also play an important role in carbon cycle involves decomposition or breakdown of the waste organic compound because decomposers contribute substantially to $CO 2$ pool by their processing of waste materials \& dead organic matter of land or ocean.
original image

AIIMS-2000

Ecosystem

260339 Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D) Identify the blanks
original image
Options :

1 A = Rock minerals; B = Detritus; C = Litter fall; D = Producers

2 A = Litter fall; B = Producers; C = Rock minerals; D = Detritus

3 A = Detritus; B = Rock minerals; C = Producer; D = Litter fall

4 A = Producers; B = Litter fall; C = Rock minerals; D = Detritus

AIPMT-2014

Ecosystem

260345 Study the model of phosphorus cycle
(I) Rock Minerals
(II) Producers
(III) Detritus
(IV) Soil solution
(V) Consumers
original image
Identify the $A, B, C, D$ and $E$
Options :

1 A-IV B-V C-III D-II E-I

2 A-II B-IV C-I D-V E-III

3 A-II B-V C-III D-IV E-I

4 A-III B-V C-I D-II E-IV

AP EAMCET-28.04.2017 Shift-I

Ecosystem

260347 Assertion (A): The eutrophication of water is attributed to nitrates and phosphates Reason (R): They are the chief plant nutrients Options:

1 Both

A

and

R

are correct and

R

is the correct explanation of

A

2 Both

A

and

R

correct and

R

is not the correct explanation of

A

3

A

is correct but

R

is wrong

4

A

is wrong but

R

is correct

Explanation:

Eutrophication is a process where by water bodies receive excessive amounts of nutrients, which results in excessive plant growth (like algal bloom).
Mainly aries from the oversupply of phosphate and nitrate nutrients.
The nitrogen and phosphorus are often limiting factors in plant growth. Therefore they are used in fertilizers to improve plant growth. Thus the option (b) - A \& R are correct but $R$ is not correct explanation of $A$ .

AP EAPCET-07.09.2021 Shift-I

Ecosystem

260357 Nitrogen fixing bacteria converts

1

N_{2} \to {NH}_{3}

2

{NH}_{4}^{+} \to

Nitrates

3

{NO}_{2} \to {NO}_{3}

4

{NO}_{3} \to N_{2}

AIPMT-1999

Ecosystem

260332 The role of bacteria in carbon cycle is:

1 photosynthesis

2 chemosynthesis

3 decomposition of organic compounds

4 evolution of

O_{2}

Explanation:

The carbon cycle is a complex cyclical process through Which all of the carbon atoms in existence rotate. Carbon cycling occurs through Atmosphere Ocean \& through living and dead organisms. Bacteria also play an important role in carbon cycle involves decomposition or breakdown of the waste organic compound because decomposers contribute substantially to $CO 2$ pool by their processing of waste materials \& dead organic matter of land or ocean.
original image

AIIMS-2000

Ecosystem

260339 Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D) Identify the blanks
original image
Options :

1 A = Rock minerals; B = Detritus; C = Litter fall; D = Producers

2 A = Litter fall; B = Producers; C = Rock minerals; D = Detritus

3 A = Detritus; B = Rock minerals; C = Producer; D = Litter fall

4 A = Producers; B = Litter fall; C = Rock minerals; D = Detritus

AIPMT-2014

Ecosystem

260345 Study the model of phosphorus cycle
(I) Rock Minerals
(II) Producers
(III) Detritus
(IV) Soil solution
(V) Consumers
original image
Identify the $A, B, C, D$ and $E$
Options :

1 A-IV B-V C-III D-II E-I

2 A-II B-IV C-I D-V E-III

3 A-II B-V C-III D-IV E-I

4 A-III B-V C-I D-II E-IV

AP EAMCET-28.04.2017 Shift-I

Ecosystem

260347 Assertion (A): The eutrophication of water is attributed to nitrates and phosphates Reason (R): They are the chief plant nutrients Options:

1 Both

A

and

R

are correct and

R

is the correct explanation of

A

2 Both

A

and

R

correct and

R

is not the correct explanation of

A

3

A

is correct but

R

is wrong

4

A

is wrong but

R

is correct

Explanation:

Eutrophication is a process where by water bodies receive excessive amounts of nutrients, which results in excessive plant growth (like algal bloom).
Mainly aries from the oversupply of phosphate and nitrate nutrients.
The nitrogen and phosphorus are often limiting factors in plant growth. Therefore they are used in fertilizers to improve plant growth. Thus the option (b) - A \& R are correct but $R$ is not correct explanation of $A$ .

AP EAPCET-07.09.2021 Shift-I

Ecosystem

260357 Nitrogen fixing bacteria converts

1

N_{2} \to {NH}_{3}

2

{NH}_{4}^{+} \to

Nitrates

3

{NO}_{2} \to {NO}_{3}

4

{NO}_{3} \to N_{2}

AIPMT-1999

Ecosystem

260332 The role of bacteria in carbon cycle is:

1 photosynthesis

2 chemosynthesis

3 decomposition of organic compounds

4 evolution of

O_{2}

Explanation:

The carbon cycle is a complex cyclical process through Which all of the carbon atoms in existence rotate. Carbon cycling occurs through Atmosphere Ocean \& through living and dead organisms. Bacteria also play an important role in carbon cycle involves decomposition or breakdown of the waste organic compound because decomposers contribute substantially to $CO 2$ pool by their processing of waste materials \& dead organic matter of land or ocean.
original image

AIIMS-2000