The given diagram shows the structure of:
1. Flagellum in Gram negative bacteria
2. Flagellum in Gram positive bacteria
3. Eukaryotic flagellum
4. Pili in prokaryotes
In which of the following bacterial cells will the flagellar insertion be termed as lophotrichous ?
1.
2.
3.
4.
Consider the given two statements:
I. In plants the glyoxylate cycle occurs in special peroxisomes which are called glyoxysomes.
II. This cycle allows seeds to use lipids as a source of energy to form the shoot during germination.
1. Both I and II are correct and II explains I
2. Both I and are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect
Identify the incorrect statement regarding endospores in bacteria:
1. An endospore is a dormant, tough, and non-reproductive structure produced by some bacteria and archaea.
2. Endospore formation is usually triggered by a lack of nutrients, and usually occurs in gram-positive bacteria.
3. The endospore consists of the bacterium's DNA, ribosomes and large amounts of dipicolinic acid.
4. When favorable conditions return, a large number of cells are produced as a result of endospore germination.
Consider the given two statements
I. Placing phospholipids into an aqueous solution immediately results in their forming a lipid bilayer.
II. Phospholipids have a strong affinity for other phospholipids, leading to self assembly by covalent bonding.
1. Both I and II are correct and II explains I
2. Both I and are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect
Consider the given two statements:
I. Only eukaryotes have cytoskeleton components.
II. The cell wall is the only deciding factor for many bacterial cell shapes.
1. Both I and II are correct and II explains I
2. Both I and are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect
Cytoskeleton elements involved in muscle contraction, cytokinesis and cytoplasmic streaming are:
1. Microfilaments
2. Intermediate filaments
3. Microtubules
4. FTS-Z
Consider the given two statements:
I. Lugol's iodine solution is always added after addition of crystal violet in Gram staining.
II. Lugol’s iodine helps in counter-staining, if required.
1. Both I and II are correct and II explains I
2. Both I and are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect
Cytoskeleton elements involved in intracellular transport, the formation of the axoneme of cilia and flagella and the mitotic spindle, are:
1. Microfilaments
2. Intermediate filaments
3. Microtubules
4. FTS-Z
If a species of bacteria has multiple strains but only some are pathogenic, it is likely that unlike the non-pathogenic strains, the pathogenic strains will have:
1. Plasmids
2. Lipopolysaccharide
3. Pili
4. Flagellum