Biology Test

Result

Biology Test - 9

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Weekly Quiz Competition

Question 1
1 / -0

In order to obtain virus-free plants through tissue culture, the best method is

A

meristem culture

B

anther culture

C

embryo rescue

D

protoplast culture
Question 2
1 / -0

Which of the following has/have the lowest water potential?

A

Leaf air spaces

B

Leaf cell walls

C

Root xylem

D

Soil
Question 3
1 / -0

The dramatic increase in the population size over a relatively short period is called population explosion. Which of the following are the primary factors for population explosion?a. Decrease in death rateb. Development of agriculturec. Protection from natural risksd. Increase in longevity

A

Only a and d

B

Only a and c

C

Only b and c

D

Only a and b
Question 4
1 / -0

A

It indicates the presence of an enzyme inhibitor in the reaction mixture.

B

The rate of enzyme reaction is directly proportional to the substrate concentration.

C

It indicates the formation of an enzyme-substrate complex.

D

At higher substrate concentration, the pH increases.
Question 5
1 / -0

Biodiversity Act of India was passed by the Parliament in the year

A

2002

B

1992

C

1996

D

2000
Question 6
1 / -0

When CO₂ concentration in blood increases, how does it affect breathing?

A

It becomes faster and deeper.

B

It becomes slow and deep.

C

There is no effect on breathing.

D

It becomes shallower and slow.
Question 7
1 / -0

Enzyme necessary for transcription is

A

RNA polymerase

B

Endonuclease

C

DNA polymerase

D

RNAase
Question 8
1 / -0

A

a-normal enzyme reaction, b-competitive inhibition, c-non-competitive inhibition

B

a-enzyme with an allosteric modulator added, b-normal enzyme activity, c-competitive inhibition

C

a-enzyme with an allosteric stimulator, b-competitive inhibitor added, c-normal enzyme reaction

D

a-normal enzyme reaction, b-non-competitive inhibitor added, c-allosteric inhibitor added
Question 9
1 / -0

A

(a)

B

(b)

C

(c)

D

(d)
Question 10
1 / -0

In human body, urea is produced as an excretory product in the

A

liver

B

kidneys

C

urinary bladder

D

pancreas

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Question Analysis

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Re-Attempt Weekly Quiz Competition

Biology Test - 9

Result

Biology Test - 9

Score

-

Rank

-

SHARING IS CARING

Question 1

meristem culture

anther culture

embryo rescue

protoplast culture

Question 2

Leaf air spaces

Leaf cell walls

Root xylem

Soil

Question 3

Only a and d

Only a and c

Only b and c

Only a and b

Question 4

It indicates the presence of an enzyme inhibitor in the reaction mixture.

The rate of enzyme reaction is directly proportional to the substrate concentration.

It indicates the formation of an enzyme-substrate complex.

At higher substrate concentration, the pH increases.

Question 5

2002

1992

1996

2000

Question 6

It becomes faster and deeper.

It becomes slow and deep.

There is no effect on breathing.

It becomes shallower and slow.

Question 7

RNA polymerase

Endonuclease

DNA polymerase

RNAase

Question 8

a-normal enzyme reaction, b-competitive inhibition, c-non-competitive inhibition

a-enzyme with an allosteric modulator added, b-normal enzyme activity, c-competitive inhibition

a-enzyme with an allosteric stimulator, b-competitive inhibitor added, c-normal enzyme reaction

a-normal enzyme reaction, b-non-competitive inhibitor added, c-allosteric inhibitor added

Question 9

(a)

(b)

(c)

(d)

Question 10

liver

kidneys

urinary bladder

pancreas

User

Question Analysis

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Score

-

Rank

-

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