Which of the following statements regarding prokaryotic extracellular appendages are TRUE? P. Bacterial glycocalyx is located inside the cell wall. Q. Bacterial capsule is a well organized bacterial glycocalyx. R. F pili is involved in transferring DNA from one bacterium to another. S. Fimbriae help bacteria to attach to the other structures.

In which of the following fruiting myxobacteria the myxospores are spheres?

1. Chondromyces
2. Myxococcus
3. Polyangium Select the correct answer using codes given below:

Which of the following groups of bacteria are called gliding bacteria?

Which of the following statements are FALSE regarding prokaryotic cell?

1. Prokaryotic cells are smaller in size than eukaryotic cells.
2. Site for oxidative phosphorylation is mitochondria.
3. Ribosomal subunits are 60S and 40S.
4. Golgi apparatus is absent.

Which of the following are not present in prokaryotes?

1. Cell membrane
2. Mitochondria
3. Golgi complex
4. Ribosome
5. Cytoplasm
6. Lysosome

Which of the following statements are TRUE regarding bacteria? P. The bacterial cell wall is composed of chitin. Q. The cytoplasm of a bacterium is supported by microtubules. R. A gram-positive bacterium is stained purple by the gram stain. S. Bacterial flagella propel the cell by using a rotating motion.

Which of the following is/are not TRUE regarding chloroplasts? P. Single membrane bounded organelles Q. Have their own genetic material R. Electron transport and energy production of chloroplast is located the inner membrane S. Synthesize their own fatty acids, amino acids, and lipid components

Match the column – I (Bacteria) with column – II (Flagellar arrangement) and select the correct option.

Which of the following sets represent fruiting myxobacteria only?

Which of the following protozoans have flagella as locomotory organ?

1. Entamoeba histolytica
2. Giardia lamblia
3. Trypanosoma cruzi
4. Leishmania donovani
5. Balantidium coli

Assertion (A): Endoplasmic reticulum functions as a system for transporting materials from one part of the cell to another. Reason (R): It is a system of membrane-enclosed channels which extends throughout the cytoplasm of the cell and interconnects with the plasma membrane and the nuclear envelope.

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 correct explanation of A.
2. If A and R both are correct and R is not 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.

Mesosomes are organelles of bacteria that appear as invagination of the plasma membrane. Functions of mesosomes include -

1. Increase surface area of plasma membrane
2. Respiration processes
3. DNA replication and distribution
4. Fatty acid synthesis
5. Transport of materials from one part of the cell to another Select the correct answer.

Which of the following genera of mollicutes exhibits respiratory metabolism?

Which of the following are not common features of fimbriae and pili? P. Thin non-flagellar protein filaments found on the surface of bacteria. Q. Composed of the protein called pilin. R. Transfer genetic material during sexual reproduction of bacteria. S. Used for attachment to surfaces for colonization. Select the correct answer.

Which of the following microorganisms have least G + C moles %?

Which of the following are incorrect regarding gram-positive bacteria? P. Mesosomes in cytoplasm – Absent Q. Ratio of RNA to DNA – 8:1 R. Type of toxin produced – Endotoxin S. Effect on 1% NaOH – Resistant

Which of the following genera of Mollicutes exhibit pleomorphic morphology? A. Mycoplasma B. Ureaplasma C. Acholeplasma D. Anaeroplasma E. Spiroplasma Select the correct answer using codes given below:

Match the column – I (Organism) with column – II (Class) and select the correct option.

Which of the following have acellular structural organization without protective coat around protein/nucleic acid?

1. Prions
2. Viroids
3. Viruses
4. Bacteria Select the correct answer.

Match the column – I (Organelle) with column – II (Function) and select the correct option.