Select the mismatch.
1. Gas vacuoles — Green bacteria Cells
2. Large central vacuoles — Animal cells
3. Protists — Eukaryotes
4. Methanogens — Prokaryotes
Select the wrong statement.
(1) Bacterial cell wall is made up of peptidoglycan
(2) Pili and fimbriae are mainly involved in motility of bacterial cells
(3) Cyanobacteria lack flagellated cells
(4) Mycoplasma is a wall-less microorganism
Microtubules are the constituents of
(1) spindle fibres, centrioles and cilia
(2) centrioles, spindle fibres and chromatin
(3) centrosome, nucleosome and centrioles
(4) cilia, flagella and peroxisomes
Which of the following are not membrane-bound?
1. Vacuoles
2. Ribosomes
3. Lysosomes
4. Mesosomes
Cellular organelles with membranes are
1. nuclei, ribosomes and mitochondria
2. chromosomes, ribosomes and endoplasmic reticulum
3. endoplasmic reticulum, ribosomes and nuclie
4. lysosomes, Golgi apparatus and mitochondria.
The chromosomes in which centromere is situated close to one end are
1. metacentric
2. acrocentric
3. telocentric
4. sub-metacentric
Select the correct matching in the following pairs.
1. Smooth ER—Oxidation of phospholipids
2. Smooth ER—Synthesis of lipids
3. Rough ER—Synthesis of glycogen
4. Rough ER—Oxidation of fatty acids
Which one of the following is not an inclusion body found in prokaryotes?
1. Phosphate granule
2. Cyanophycean granule
3. Glycogen granule
4. Polysome
Which structures perform the function of mitochondria in bacteria?
1. Nucleoid
2. Ribosomes
3. Cell wall
4. Mesosomes
The osmotic expansion of a cell kept in water is chiefly regulated by
1. mitochondria
2. vacuoles
3. plastids
4. ribosomes