Biochemistry (GATE)
| Description: GATE Molecular Biology and GeneticsBiomolecules and Their ConformationBiotechnologyMicrobiologyRecombinant DNA TechnologyProkaryotic and Eukaryotic Cell Structure | |
| Number of Questions: 15 | |
| Created by: Ankita Patil | |
| Tags: GATE Molecular Biology and Genetics Biomolecules and Their Conformation Biotechnology Microbiology Recombinant DNA Technology Prokaryotic and Eukaryotic Cell Structure |
Identify the false statements:
- Aspartate is a ketogenic amino acid.
- Arginine is the immediate precursor of NO.
- Asparagine is an essential amino acid.
- Glycine is an optically inactive amino acid.
___________ is a dipeptide of the amino acids beta-alanine and histidine.
__________ is an example of sulphur containing a non-steroidal anti-inflammatory drug.
Which of the following are a pair of second generation fluoroquinolones?
Which of the following were discovered by Albrecht Kossel?
- Arginine
- Histidine
- Agmatine
- Carnosine
- Carnitine
Which of the following antibiotics acts by inhibiting mycolic acid synthesis?
Which of the following set of antibiotics act by blocking cross linking via competitive inhibition of the transpeptidase enzyme?
Which of the following antibiotics act by inhibition of 50S ribosomal subunit?
- Neomycin
- Streptomycin
- Erythromycin
- Azithromycin
Which of the following type of herbicides act by inhibition of acetolactate synthase?
- Sulfonylurea
- Imidazolinone
- Dinitroaniline
- Triazine
Which of the following is a pair of exoribonucleases?
Which of the following drugs are used as skeletal muscle relaxants?
- Telenzepine
- Pancuronium
- Oxybutynin
- Tubocurarine
Which of the following cell structures are not found in prokaryotic cells?
- Peroxisomes
- Ribosomes
- Lysosomes
- Golgi Complex
Match the column – I (antibiotics) with column – II (mechanism of action) and select the correct option.
| Column – I | |
| Column – II | |
| A. Bacitracin | 1. DNA Synthesis Inhibitors |
| B. Tetracyclines | 2. Protein Synthesis Inhibitors |
| C. Metronidazole | 3. Folic Acid Synthesis Inhibitors |
| D. Sulfonamides | 4. Inhibits cell wall synthesis |
Match the column – I (Structures of cells) with column – II (Relative functions) and select the correct option.
| Column – I | |
| Column – II | |
| A. Cytoplasmic membrane | 1. Mineral storage of cells |
| B. Ribosome | 2. Protein synthesis |
| C. Inclusion body | 3. Tough, heat resistant structure that helps bacteria survive in adverse conditions |
| D. Endospore | 4. Regulation of substance transport into and out of cells |
Assertion (A): Under alkaline conditions, DNA is more stable than RNA. Reason (R): RNA is more susceptible to base-catalysed hydrolysis than DNA.
Directions: In the following question there are two statements, Assertion (A) and Reason (R), consider both the statements independently and mark your answers as under:
1. If A and R both are correct and R is the correct explanation of A.
2. If A and R both are correct and R is not the correct explanation of A.
3. If A is correct and R is incorrect.
4. If A is incorrect and R is correct.
5. If A and R both are incorrect.