Rates of physical and chemical processes are influenced by temperature among other factors. A general rule of thumb is that rate:
1.
doubles by half for every 10°C change in either direction
2.
decreases by half for every 10°C change in either direction
3.
doubles or decreases by half for every 10°C change in either direction
4.
doubles or decreases by half for every 5°C change in either direction
Subtopic: Enzymes | Enzyme Catalysis |
76%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following polysaccharides does not have glucose as its constituent unit?
1. Inulin
2. Starch
3. Cellulose
4. Glycogen
1. Inulin
2. Starch
3. Cellulose
4. Glycogen
Subtopic: Carbohydrates |
84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The type of biochemical reaction shown in the figure is catalysed by a group of enzymes called as:
1. Transferases
2. Lyases
3. Ligases
4. Oxidoreductases
1. Transferases
2. Lyases
3. Ligases
4. Oxidoreductases
Subtopic: Enzymes Classification |
81%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Identify the incorrect statement:
| 1. | Cytosine is common for both DNA and RNA. |
| 2. | Uracil is present in RNA at the place of Thymine. |
| 3. | A nitrogenous base is linked to the OH of 1'C pentose sugar through a N-glycosidic linkage to form a nucleoside. |
| 4. | When a phosphate group is linked to OH of 2'C of a nucleoside through phosphoester linkage, a corresponding nucleotide is formed. |
Subtopic: Nucleic Acid: Nucleotides |
78%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
All the following biomolecules can be called both polymers and macromolecules except:
1. Lipids
2. Proteins
3. Carbohydrates
4. Nucleic acids
1. Lipids
2. Proteins
3. Carbohydrates
4. Nucleic acids
Subtopic: Lipids |
87%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following secondary metabolites is a carbohydrate-binding protein [Lectin]?
1. Abrin
2. Vinblastin
3. Curcumin
4. Concanavalin A
1. Abrin
2. Vinblastin
3. Curcumin
4. Concanavalin A
Subtopic: Primary & Secondary Metabolites |
88%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Amino Acids |
86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The activator of alcohol dehydrogenase enzyme is:
1. Zinc
2. Magnesium
3. Manganese
4. Molybdenum
1. Zinc
2. Magnesium
3. Manganese
4. Molybdenum
Subtopic: Enzyme Cofactors |
75%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the two statements:
| Assertion (A): | Iodine-KI reagent can be used to detect starch in a sample. |
| Reason (R): | Starch can hold iodine molecules in its helical portion and starch-iodine is blue in colour. |
| 1. | Both (A) and (R) are True but (R) does not correctly explain(A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are False. |
| 4. | Both (A) and (R) are True and (R) correctly explains (A). |
Subtopic: Carbohydrates: Starch & Glycogen |
74%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
In the absence of an enzyme, the catalysed reaction:
| 1. | does not take place |
| 2. | takes place at a very slow rate |
| 3. | takes place at a higher rate |
| 4. | is not affected at all |
Subtopic: Enzymes | Enzyme Catalysis |
82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
© 2024 GoodEd Technologies Pvt. Ltd.