Biology/Biology ��� Biomolecules ��� Structure of Proteins MCQs Sample Test,Sample questions

Question:
 In which part of the plant, does photosynthesis takes place?

1.Peroxisomes

2.Glyoxisomes

3.Quantosomes

4.Lysosomes


Question:
A protein thread exists as an extended rigid rod. True or false?

1.True

2.False


Question:
C4 pathway uses 5 ATP molecules and 4 NADPH molecules as the energy source.

1.True

2.False


Question:
Calvin cycle occurs in the cytoplasm of the cell.

1.True

2.False


Question:
Chloroplast divide by binary fission.

1.True

2.False


Question:
How many ATP molecules are required to produce one molecule of glucose?

1.18

2.15

3.12

4.9


Question:
How many beta subunits are present in human hemoglobin?

1.1

2. 2

3.3

4.4


Question:
How many levels of organization do proteins have?

1.4

2.3

3.2

4.5


Question:
How many subunits does human hemoglobin contain?

1.2

2.3

3.6

4.4


Question:
How many times should the Calvin cycle happen, in order to obtain one glucose molecule?

1.2

2.4

3.3

4.6


Question:
How many types of subunits does hemoglobin possess?

1.1

2.4

3.2

4.3


Question:
In which of these structures of proteins can disulfide bonds be found?

1.Tertiary structure

2.Alpha helix

3.Beta sheet

4.Primary structure


Question:
Proteins are heteropolymers of ______

1.lipids

2.monosaccharides

3.peptides

4.amino acids


Question:
Structure of molecules in inorganic chemistry refers to the ______

1.three-dimensional structure

2.two-dimensional structure

3.molecular formula

4.primary structure


Question:
Structure of molecules in physics refers to the ______

1.primary structure

2.two-dimensional structure

3.three-dimensional structure

4.molecular formula


Question:
Tertiary structure gives a three-dimensional view of proteins. True or false?

1.True

2.False


Question:
The C4 plants grow in the cold climate places.

1.True

2.False


Question:
The mass of chloroplast DNA is __________

1.10 – 15 million daltons

2.50 – 100 million daltons

3.80 – 130 million daltons

4.25 – 125 million daltons


Question:
The number of chloroplasts found in Arabidopsis thaliana is _____________

1.100

2.150

3.50

4.200


Question:
The sunlight is captured by the membrane of thylakoids.

1.True

2.False


Question:
The total carbon dioxide fixation done by the C4 plants is _________

1.3%

2.13%

3.23%

4.33%


Question:
What disease is caused by the dysfunction of chloroplast?

1.Leaf spot

2.Blight spot

3.Leaf variegation

4.Powdery mildew


Question:
What is the chemical formula for oxaloacetic acid?

1.C4H3O5

2.C4H4O5

3.C4H4O6

4.C3H4O5


Question:
What is the configuration of proteins in the primary structure?

1.Helix

2.Line

3.Sheet

4.Globule


Question:
What is the diameter of a chloroplast?

1.1 – 2 micrometer

2.2 – 4 micrometer

3.4 – 6 micrometer

4.6 – 10 micrometer


Question:
What is the enzyme used in the conversion of pyruvate to phosphoenolpyruvate?

1.Pyruvate monophosphate dikinase

2.Pyruvate orthophosphate dikinase

3.Pyruvate monophosphate reductase

4.Pyruvate orthophosphate reductase


Question:
What is the final product of the C4 cycle?

1.Aspartate

2.Malate

3.Oxalate

4.Acetate


Question:
What is the final product of the Calvin cycle?

1.Sedoheptulose

2.Erythrose

3.Glucose

4.Ribose


Question:
What is the first amino acid of the primary structure known as?

1.A-terminal amino acid

2.C-terminal amino acid

3.N-terminal amino acid

4.L-terminal amino acid


Question:
What is the last amino acid of the primary structure known as?

1.N-terminal amino acid

2.L-terminal amino acid

3.S-terminal amino acid

4.C-terminal amino acid


Question:
What is the left end of the primary structure of proteins represented by?

1.First amino acid

2.Last amino acid

3.Cofactor

4.Methyl group


Question:
What is the right end of the primary structure of proteins represented by?

1.Methyl group

2.Cofactor

3.First amino acid

4.Last amino acid


Question:
What makes up the primary structure of proteins?

1.Peptides

2.Peptones

3.Amino acids

4.Polypeptides


Question:
Where does the C4 pathway take place?

1.Bundle sheath

2.Xylem

3.Mesophylls

4.Phloem


Question:
Which enzyme plays the role of a catalyst in CO2 fixation in C4 plants?

1.Carbonic mutase

2.Carbonic reductase

3.Carbonic anhydrase

4.Carbonic dehydrogenase


Question:
Which level of organization do beta sheets belong to?

1.Primary

2.Quaternary

3.Secondary

4.Tertiary


Question:
Which of the following enzyme is used to fix CO2 through Calvin cycle?

1.Ribose -1, 5- bisphosphate carboxylase

2.Ribulose -1, 6- bisphosphate carboxylase

3.Ribose -1, 6- bisphosphate carboxylase

4.Ribulose -1, 5- bisphosphate carboxylase


Question:
Which of the following is an example of C3 plants?

1.Sugarcane

2.Cactus

3.Wheat

4.Corn


Question:
Which of the following is an example of C4 plants?

1.Sugarcane

2.Wheat

3.Rice

4.Cactus


Question:
Which of the following leaf anatomy is a characterization of C4 plants?

1.Piezo anatomy

2.Norman anatomy

3.Kranz anatomy

4.Richard anatomy


Question:
Which of the following organisms has photosynthetic pigments in it?

1.Yeast

2.Nitrosomonas

3.Spirulina

4.Phosphobacter


Question:
Which of these bonds is present in the primary structure of protein?

1.Peptide bond

2.Glycosidic bond

3.Hydrogen bond

4.Disulfide bonds


Question:
Which of these is a type of secondary structure of proteins?

1.Line

2.Sheet

3. Globule

4.Spherical


Question:
Which of these levels of organization does hemoglobin possess?

1.Quaternary

2.Tertiary

3.Secondary

4.Primary


Question:
Which pigment constitutes majorly in absorbing sunlight for photosynthesis?

1.Chlorophyll a

2.Chlorophyll b

3.Xanthophyll

4.Anthocyanin


Question:
Which pigment is responsible for the process of sunlight?

1.Chlorophyll a

2.Chlorophyll b

3.Xanthophyll

4.Anthocyanin


Question:
Which redox-regulated protein controls the functioning of Calvin cycle?

1.CP4

2.CP8

3. CP12

4.CP16


Question:
Who discovered C3 cycle?

1.Melvin Calvin

2.Kolliker

3.Robert Brown

4.Rudolph Markus


Question:
Who discovered C4 cycle?

1.Hatch and Slack

2.Kolliker

3.Robert Brown

4.Rudolph Markus


Question:
Who first discovered chloroplast?

1.J Rhodin

2.Robert Porter

3.Camillo Golgi

4.Konstantin Mereschkowski


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