Biomolecules Test

Question 1
1 / -0

Select the correct option:
The sum total composition of acid-soluble and acid-insoluble fraction represents the entire composition of

A
Dead cells

B
Gene pool

C
Cellular pool

D
Gene library

Question 2
1 / -0

Nucleic acid are

A
Megamolecules

B
Macromolecules

C
Micromolecules

D
Mesomolecules

Question 3
1 / -0

It is much easier for a small animal to run uphill than for a large animal, because - ?

A
small animals have lower $$O_2$$ requirement

B
the efficiency of muscles in larger animal is less than in smaller animal

C
it's easier to carry a small body weight

D
smaller animals have higher metabolic rate

Question 4
1 / -0

Which of the following statements is not correct regarding chitin?

A
It is a storage polysaccharide

B
It is a homopolysaccharide

C
It is a constituent of arthropod exoskeleton and fungal cell wall

D
It is the second most abundant carbohydrate on earth

Question 5
1 / -0

_____is the most abundant protein in animal world and ____is the most abundant protein in the whole biosphere.

A
Collagen, RuBisCO

B
Collagen, keratin

C
Keratin, RuBisCO

D
Keratin, collagen

Question 6
1 / -0

Which of the following graphs shows the relationship between the rate of an enzymatic activity and substrate concentration (S)?

A

B

C

D

Question 7
1 / -0

Study the given data and answer the questions that follow.

A sample of an enzyme called lactase was isolated from the intestinal lining of a calf. Assays were undertaken to evaluate the activity of the enzyme sample.
The substrate of lactase is the disaccharide lactose. Lactase breaks a lactose molecule in two, producing a glucose molecule and a galactose molecule. Two assays were carried out.

Assay 1
Lactose concentration
(% w/v) 15 15 15 15 15 15
Concentration of enzyme sample(% v/v)
0 5 10 15 20 25
Reaction rate ($$\mu$$ mole glucose $$sec^{-1} mL^{-1}$$) 0 25 50 75 100 125

Assay 2
Lactose concentration (% w/v) 0 5 15 20 25 30
Concentration of enzyme sample(% v/v)
5
5 5 5 5 5
Reaction rate ($$\mu$$ mole glucose $$sec^{-1} mL^{-1}$$) 0 15 25 35 40 40

Which of the following assays would you expect to have the highest reaction rate?

A
Lactose concentration (% w.v) - 15
Concentration of enzyme sample (%v/v) - 5

B
Lactose concentration (% w.v) - 30
Concentration of enzyme sample (%v/v) - 5

C
Lactose concentration (% w.v) - 15
Concentration of enzyme sample (%v/v) - 25

D
Lactose concentration (% w.v) - 30
Concentration of enzyme sample (%v/v) - 25

Question 8
1 / -0

What is denoted by X and Y in the given graph?

A
X-Activation energy without enzyme; Y-Activation energy with enzyme.

B
X-Activation energy with enzyme; Y-Activation energy without enzyme.

C
X-Substrate concentration with enzyme; Y- Substrate concentration without enzyme.

D
X-Substrate concentration without enzyme; Y-Substrate concentration with enzyme.

Question 9
1 / -0

Study the given data and answer the questions that follow.

A sample of an enzyme called lactase was isolated from the intestinal lining of a calf. Assays were undertaken to evaluate the activity of the enzyme sample.
The substrate of lactase is the disaccharide lactose. Lactase breaks a lactose molecule in two, producing a glucose molecule and a galactose molecule. Two assays were carried out.

Assay 1
Lactose concentration
(% w/v) 15 15 15 15 15 15
Concentration of enzyme sample(% v/v)
0 5 10 15 20 25
Reaction rate ($$\mu$$ mole glucose $$sec^{-1} mL^{-1}$$) 0 25 50 75 100 125

Assay 2
Lactose concentration
(% w/v) 0 5 15 20 25 30
Concentration of enzyme sample(% v/v)
5
5 5 5 5 5
Reaction rate ($$\mu$$ mole glucose $$sec^{-1} mL^{-1}$$) 0 15 25 35 40 40

What are the variables in each of the two assays?

A
Assay 1 - Lactose concentration
Assay 2 - Concentration of enzyme sample

B
Assay 1 - Concentration of enzyme sample
Assay 2 - Lactose concentration

C
Assay 1 - Lactose concentration
Assay 2 - Lactose concentration

D
Assay 1 - Concentration of enzyme sample
Assay 2 - Concentration of enzyme sample

Question 10
1 / -0

Select the correct option:
Read the given statements.
i. Fructose is the sweetest sugar.
ii. Glycine is the simplest amino acid.
iii. Lactose is a disaccharide composed of one molecule each of glucose and galactose.
iv. Cellulose is an unbranched chain of glucose molecules linked by $$\beta$$1, 4-glycosidic bond.
Which of the given statements are correct?

A
(i) and (ii)

B
(iii) and (iv)

C
(i), (ii) and (iii)

D
(i), (ii), (iii) and (iv)

Submit Test

Lactose concentration (% w/v)	15	15	15	15	15	15
Concentration of enzyme sample(% v/v)	0	5	10	15	20	25
Reaction rate ($$\mu$$ mole glucose $$sec^{-1} mL^{-1}$$)	0	25	50	75	100	125

Lactose concentration (% w/v)	0	5	15	20	25	30
Concentration of enzyme sample(% v/v)	5	5	5	5	5	5
Reaction rate ($$\mu$$ mole glucose $$sec^{-1} mL^{-1}$$)	0	15	25	35	40	40

Biomolecules Te...

Question 1

Dead cells

Gene pool

Cellular pool

Gene library

Question 2

Megamolecules

Macromolecules

Micromolecules

Mesomolecules

Question 3

small animals have lower $$O_2$$ requirement

the efficiency of muscles in larger animal is less than in smaller animal

it's easier to carry a small body weight

smaller animals have higher metabolic rate

Question 4

It is a storage polysaccharide

It is a homopolysaccharide

It is a constituent of arthropod exoskeleton and fungal cell wall

It is the second most abundant carbohydrate on earth

Question 5

Collagen, RuBisCO

Collagen, keratin

Keratin, RuBisCO

Keratin, collagen

Question 6

Question 7

Lactose concentration (% w.v) - 15Concentration of enzyme sample (%v/v) - 5

Lactose concentration (% w.v) - 30Concentration of enzyme sample (%v/v) - 5

Lactose concentration (% w.v) - 15Concentration of enzyme sample (%v/v) - 25

Lactose concentration (% w.v) - 30Concentration of enzyme sample (%v/v) - 25

Question 8

X-Activation energy without enzyme; Y-Activation energy with enzyme.

X-Activation energy with enzyme; Y-Activation energy without enzyme.

X-Substrate concentration with enzyme; Y- Substrate concentration without enzyme.

X-Substrate concentration without enzyme; Y-Substrate concentration with enzyme.

Question 9

Assay 1 - Lactose concentrationAssay 2 - Concentration of enzyme sample

Assay 1 - Concentration of enzyme sampleAssay 2 - Lactose concentration

Assay 1 - Lactose concentrationAssay 2 - Lactose concentration

Assay 1 - Concentration of enzyme sampleAssay 2 - Concentration of enzyme sample

Question 10

(i) and (ii)

(iii) and (iv)

(i), (ii) and (iii)

(i), (ii), (iii) and (iv)

User

Question Analysis

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Lactose concentration (% w.v) - 15
Concentration of enzyme sample (%v/v) - 5

Lactose concentration (% w.v) - 30
Concentration of enzyme sample (%v/v) - 5

Lactose concentration (% w.v) - 15
Concentration of enzyme sample (%v/v) - 25

Lactose concentration (% w.v) - 30
Concentration of enzyme sample (%v/v) - 25

Assay 1 - Lactose concentration
Assay 2 - Concentration of enzyme sample

Assay 1 - Concentration of enzyme sample
Assay 2 - Lactose concentration

Assay 1 - Lactose concentration
Assay 2 - Lactose concentration

Assay 1 - Concentration of enzyme sample
Assay 2 - Concentration of enzyme sample