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
The motile bacteria are able to move by
1. fimbriae
2. flagella
3. cilia
4. pili
The Golgi complex plays a major role:
1. | in trapping the light and transforming it into chemical energy |
2. | in digesting proteins and carbohydrates |
3. | as energy transferring organelles |
4. | in post translational modification of proteins and glycosidation of lipids |
Ribosomal RNA is actively synthesized in
1. lysosomes
2. nucleolus
3. nucleoplasm
4. ribosomes
What is true about ribosomes?
1. The prokaryotic ribosomes are 80 S, where S stands for sedimentation coefficient
2. These are composed of ribonucleic acid and proteins
3. These are found only in eukaryotic cells
4. These are self-splicing introns of some RNAs