Match the following columns and select the correct option : Column-I Column-II (a) Smooth endoplasmic reticulum (i) Protein synthesis (b) Rough endoplasmic reticulum (ii) Lipid synthesis (c) Golgi complex (iii) Glycosylation (d) Centriole (iv) Spindle ...
The Golgi complex participates in : (1) Respiration in bacteria (2) Formation of secretory vesicles (3) Fatty acid breakdown (4) Activation of amino acid
Which is the important side of formation of glycoproteins and glycolipids in eukaryotic cells? (1) Endoplasmic reticulum (2) Peroxisomes (3) Golgi bodies (4) Polysomes
The biosynthesis of ribosomal RNA occurs in: (1) Nucleolus (2) Ribosomes (3) Golgi apparatus (4) Microbodies
Inclusion bodies of blue-green, purple and green photosynthetic bacteria are (1) Microtubules (2) Contractile vacuoles (3) Gas vacuoles (4) Centrioles
Cellular organelles with membranes are (a) endoplasmic reticulum, ribosomes and nuclei (b) lysosomes, Golgi apparatus and mitochondria (c) nuclei, ribosomes and mitochondria (d) chromosomes, ribosomes and endoplasmic reticulum.
Which of the following structures is not found in a prokaryotic cell ? (a) Mesosome (b) Plasma membrane (c) Nuclear envelope (d) Ribosome
Match the columns and identify the correct option. Column I Column II A. Thylakoids (i) Discshaped sacs in Golgi apparatus B. Cristae (ii) Condensed structure of DNA C. Cisternae (iii) Flat membranous sacs in stroma D. Chromatin (iv) Infoldings in ...
Which one of the following cell organelles is enclosed by a single membrane ? (a) Lysosomes (b) Nuclei (c) Mitochondria (d) Chloroplasts
Microtubules are the constituents of (a) centrioles, spindle fibres and chromatin (b) centrosome, nucleosome and centrioles (c) cilia, flagella and peroxisomes (d) spindle fibres, centrioles and cilia.
Mitochondria and chloroplast are (A) semiautonomous organelles (B) formed by division of preexisting organelles and they contain DNA but lack protein synthesising machinery. Which one of the following options is correct? (a) (A) is true but (B) is false. ...
A cell organelle containing hydrolytic enzymes is (a) lysosome (b) microsome (c) ribosome (d) mesosome.
Select the wrong statement. (a) Bacterial cell wall is made up of peptidoglycan. (b) Pili and fimbriae are mainly involved in motility of bacterial cells. (c) Cyanobacteria lack flagellated cells. (d) Mycoplasma is a wallless microorganism.
Select the mismatch. (a) Gas vacuoles – Green bacteria (b) Large central vacuoles – Animal cells (c) Protists – Eukaryotes (d) Methanogens – Prokaryotes
Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP ? (a) Ribosome (b) Chloroplast (c) Mitochondrion (d) Lysosome
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