Microbiology

Mitochondria, Golgi complex, Lysosomes: All the three are not found in prokaryotes

Both are true statements.
A gram-positive bacterium is stained purple by the gram stain.
Bacterial flagella propel the cell by using a rotating motion.

Giardia lamblia - Flagella
Trypanosoma cruzi – Flagella
Leishmania donovani – Flagella

This option is correct because Mycoplasma and Acholeplasma are the genera of Mollicutes that exhibit pleomorphic morphology.

Myxobacteria and Cytophagales are called gliding bacteria on the basis of their gliding mobility on solid surfaces.

Cystobacter, Melittangium, Polyangium : All are fruiting myxobacteria.

Mitochondria are not found in prokaryotic cells. Site for oxidative phosphorylation in prokaryotic cells is cell membrane.
Cytoplasmic ribosome size of prokaryotic cells is 70S. Ribosomal subunits are 50S and 30S.

Ureaplasma exhibits respiratory metabolism.

Balantidium, Giardia, Trypanosoma: All are internal parasite protozoans.
Balantidium is a common intestinal parasite of vertebrates found chiefly in amphibians and mammals.
Giardia is found as parasite in the digestive tract of vertebrates.
Trypanosoma is an endoparasite, which resides in blood and cerebrospinal fluid of man.

Plasmodium vivax (malaria parasite) completes its asexual part of life cycle in people and the sexual part in the female Anopheles mosquito (Digenetic life cycle).
Trypanosam cruzi possesses a digenetic life cycle, involving a hematophagous insect vector and a mammalian host.

Duration of exoerythrocytic cyle is 8 days in Plasmodium vivax, while it is 14-15 days in Plasmodium malariae.
Incubation period is 12-14 days Plasmodium vivax, while it is 20-24 days in Plasmodium malariae.

Peritrichous bacteria have flagella projecting in all directions (e.g., Escherichia coli).
Lophotrichous bacteria have multiple flagella located at the same spot on the bacteria's surfaces ( e.g., Helicobacter pylori).
Amphitrichous bacteria have a single flagellum on each of two opposite ends (e.g., Rhodospirillum rubrum).
Monotrichous bacteria have a single flagellum (e.g., Vibrio cholerae).

Amoeba belongs to class Sarcodina.
Astasia belongs to class Mastigophora.
Vorticella belongs to class Ciliophora.
Leishmania belongs to class Sporozoa.

Bacterial capsule is a well organised bacterial glycocalyx that is firmly attached to the bacterial cell wall.
F (conjugation, sex) pili are involved in the transfer of plasmids from one bacteria to the other.
Fimbriae are short pili found in large numbers and used to attach bacteria to surfaces.

Lobopods: Short, blunt, thick, fingerlike outgrowth of ectoplasm with an axial core of endoplasm, e.g., Amoeba.
Filopods: Cylindrical thread like, formed entirely of ectoplasm and radiate from the body in all directions, e.g., Radiolaria.
Reticulopods: Filamentous… forms a network of pods, e.g., Polystomella.
Axopods: Long stiff, semi-transparent extensions of cytoplasm with pointed distal ends, e.g., Actinophyrus.