In which group of organisms the cell walls form two thin overlapping shells which fit together?

(a) Chrysophytes

(b) Euglenoids

(c) Dinoflagellates

(d) Slime moulds

Pick up the wrong statement.

(a) Cell wall is absent in Animalia.

(b) Protista have photosynthetic and heterotrophic modes of nutrition.

(c) Some fungi are edible.

(d) Nuclear membrane is present in Monera.

Which of the following are likely to be present in deep sea water ?

(1) Archaebacteria

(2) Eubacteria

(3) Blue-green algae

(4) Saprophytic fungi

The rod shaped cells of Bacillus megatarium are converted to spherical units called protoplasts on treatment with the enzyme

(1) lysozyme

(2) cellulase

(3) cellulase and hemicellulase

(4) cellulase, hemicellulase and pectinase

The organelle common among prokaryotic and eukaryotic cell is

(1) centrosome

(2) ribosome

(3) peroxisome

(4) glyoxysome

The characteristic features of the mycoplasma are that

(1) they are much smaller than bacteria in size

(2) they can be grown on cell free medium

(3) they are highly pleomorphic and are bounded by a triple layered unit membrane

(4) all of the above

The kingdom protista does  not include

(1) photosynthetic organisms

(2) flagellate organisms

(3) parasitic organisms

(4) bacteria

A lichen that grows by branching is described as 

(1) fruticose

(2) crustose

(3) foliose

(4) dichotose

The fruiting bodies of Agaricus are also known as

(1) cleistothecium

(2) fairy rings

(3) basidiocarp

(4) ascocarp

Fungi imperfecti constitute a group that

(1) are obligatory parasites

(2) reproduce only asexually

(3) do not cause disease in humans

(4) resemble bacteria in some respects