If the pH in lysosomes is increased to alkaline, what will be the outcome?
| 1. | Hydrolytic enzymes will function more efficiently |
| 2. | Hydrolytic enzymes will become inactive |
| 3. | Lysosomal enzymes will be released into the cytoplasm |
| 4. | Lysosomal enzymes will be more active |
Subtopic: Lysosomes |
85%
Level 1: 80%+
NEET - 2022
Hints
Choose the incorrect enzymatic reaction:
1. \( Maltose \stackrel{\text { Maltase }}{\longrightarrow} Glucose + Galactose \)
2. \( Sucrose \stackrel{\text { sucrease }}{\longrightarrow} Glucose + Fructose \)
3. \( Lactose \stackrel{\text { Lactase }}{\longrightarrow} Glucose + Galactose \)
4. \(Dipeptides \stackrel{\text { Dipeptidases }}{\longrightarrow}Amino ~acids\)
1. \( Maltose \stackrel{\text { Maltase }}{\longrightarrow} Glucose + Galactose \)
2. \( Sucrose \stackrel{\text { sucrease }}{\longrightarrow} Glucose + Fructose \)
3. \( Lactose \stackrel{\text { Lactase }}{\longrightarrow} Glucose + Galactose \)
4. \(Dipeptides \stackrel{\text { Dipeptidases }}{\longrightarrow}Amino ~acids\)
Subtopic: DIGESTION OF FOOD |
79%
Level 2: 60%+
NEET - 2022
Hints
Which of the following reasons is mainly responsible for graft rejection in transplantation of organs?
| 1. | Inability of recipient to differentiate between 'self and 'non–self' tissues/cells |
| 2. | Humoral immune response only |
| 3. | Auto–immune response |
| 4. | Cell–mediated response |
Subtopic: Details of Immunity |
87%
Level 1: 80%+
NEET - 2022
Hints
Mad cow disease in cattle and Cr Jacob disease in humans are due to infection by__________________ .
| 1. | Bacterium | 2. | Virus |
| 3. | Viroid | 4. | Prion |
Subtopic: Virus, Viroids & Prions |
87%
Level 1: 80%+
NEET - 2022
Hints
If DNA contained sulphur instead of phosphorus and proteins contained phosphorus instead of sulfur, what would have been the outcome of Hershey and Chase experiment?
1. No radioactive sulfur in bacterial cells
2. Both radioactive sulfur and phosphorus in bacterial cells
3. Radioactive sulfur in bacterial cells
4. Radioactive phosphorus in bacterial cells
1. No radioactive sulfur in bacterial cells
2. Both radioactive sulfur and phosphorus in bacterial cells
3. Radioactive sulfur in bacterial cells
4. Radioactive phosphorus in bacterial cells
Subtopic: Search for Genetic Material |
76%
Level 2: 60%+
NEET - 2022
Hints
Two butterfly species are competing for the same nectar of a flower in a garden. To survive and coexist together, they may avoid competition in the same garden by:
| 1. | feeding at the same time |
| 2. | choosing different foraging patterns |
| 3. | increasing time spent on attacking each other |
| 4. | predating on each other |
Subtopic: Population Interactions: Competition |
85%
Level 1: 80%+
NEET - 2022
Hints
Which of the following is not an Intra Uterine Device?
| 1. | Progestogens | 2. | Multiload 375 |
| 3. | Lippes loop | 4. | Progestasert |
Subtopic: Contraception: Barrier Methods & IUDs |
85%
Level 1: 80%+
NEET - 2022
Hints
Match List-I with List-II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (a) | Chlamydomonas | (i) | Conidia |
| (b) | Penicillium | (ii) | Zoospores |
| (c) | Hydra | (iii) | Gemmules |
| (d) | Sponge | (iv) | Buds |
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (iv) | (iii) | (ii) |
| 2. | (ii) | (i) | (iv) | (iii) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (iv) | (iii) | (ii) | (i) |
Subtopic: Asexual Reproduction |
94%
Level 1: 80%+
NEET - 2022
Hints
According to the sliding filament theory:
| 1. | Actin and myosin filaments slide over each other to increase the length of the sarcomere. |
| 2. | Length of A–band does not change. |
| 3. | I–band increases in length |
| 4. | The actin filaments slide away from A–band resulting in shortening of sarcomere |
Subtopic: Skeletal Muscle: Myofilaments | Sliding Filament Theory |
79%
Level 2: 60%+
NEET - 2022
Hints
Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
| Statement I : | Amino acids have a property of ionizable nature of –NH2 and –COOH groups, hence have different structures at different pH. |
| Statement II : | Amino acids can exist as Zwitterionic form at acidic and basic pH. |
In the light of the above statements, choose the most appropriate answer from the options given below:
| 1. | Both Statement I and Statement II are correct |
| 2. | Both Statement I and Statement II are Incorrect |
| 3. | Statement I is correct but Statement II is incorrect |
| 4. | Statement I is incorrect but Statement II is correct |
Subtopic: Amino Acids |
73%
Level 2: 60%+
NEET - 2022
Hints
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