Question #1: The endoplasmic reticulum acts as a transporting system. Choose the correct path of transport of substances

Lysosome — Golgi — Agranular ER — Granular ER.

Granular ER — Golgi — Lysosome.

Golgi — Lysosome — Agranular ER — Granular ER.

Agranular ER — Lysosome — Granular ER — Golgi.

Question #2: Carbohydrate molecules are attached to lipid and protein molecules of cell membrane. These carbohydrate molecules are usually

Monosaccharides

Polysaccharides

Oligosaccharides

Starches

Question #3: Which one of the following is wrong:

Endoplasmic reticulum consists of a network of membranous tubules and help in transport, synthesis & secretion.

Leucoplasts are bound by two membranes, lack pigment but contain their own DNA and protein synthesizing machinery.

Sphaerosomes are single membrane and are associated with synthesis & storage of lipids.

Lysosomes are single membrane vesicles formed from ER and have oxidative enzymes.

Question #4: Cytoskeleton is made up of:

cellulosic microfibrils.

proteinaceous filaments.

calcium carbonate granules.

callose deposits.

Question #5: Which one of the following is not considered as a part of the endomembrane system?

Golgi complex

peroxisome

vacuole

lysosome

Question #6: Which one of the following is an organelle within an organelle?

Endoplasmic reticulum

Ribosome

Mesosome

Peroxisome

Question #7: Microtubules are the constituents of

Spindle fibres, centrioles, cilia.

Centrioles, spindle fibres, chromatin.

Centrosome, nucleosome, centrioles.

Cilia, flagella, peroxisomes

Question #8: Which of the following statements are correct for mammalian cell membranes? 1). There are two phospholipid layers coated by a layer of proteins. 2). They contain cholesterol to moderate fluidity. 3). They are supported on the inner cellular layer by a thin peptose layer.

1 only

2 only

1& 2

all three

Question #9: Which statement is false?

During exocytosis, the lumen of a secretory vesicle becomes the inside of the cell membrane.

Cilia, microtubules & flagella are all associated with movement in cells.

Proteins that are to be secreted by the cell are generally synthesised by membrane bound ribosomes.

Active transport involves movement of molecules into a cell against their concentration gradient.

Question #10: The statement “All biological catalysts are proteins” is no more valid because of the discovery of

ribonuclease

ribozyme

lysozyme

enzymes

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Also watch: Nucleus, Cell membrane