Which one is true statement

(1)cell membrane is the delimiting structure of the cell

(2)cytoplasm is the main arena of cellular activities

(3)All cells have nucleus

(4)Both A and B

How many of the following cell organelles are membranous?

Endoplasmic reticulum, Nucleus, lysosomes, vacuoles, ribosomes, centrioles

(1)6

(2)5

(3)4

(4)2

How many of the following cell organelles are not present in prokaryotic cell?

Endoplasmic reticulum, Nucleus, lysosomes, vacuoles, ribosomes, centrioles

(1)6

(2)5

(3)4

(4)2

In which of the following cell organelles ribosomes are present?

(A)cytoplasm

(B)Mitochondria and chloroplast

(C)Nucleus, Mitochondria and chloroplast

(D) cytoplasm, Mitochondria and chloroplast

Which of the following is a membraneless organelle

(1)Ribosome

(2)Nucleolus

(3)Basal Body

(4)All of these

Which one is incorrect

(1)Mycoplasmas are greater than bacteria

(2)largest isolated cell is ostrich egg

(3)Nerve cells are longest cells

(4)The shape of the cell may vary with  the function they perform

The shape of the R.B.C is

(1)round and convex

(2)round and concave

(3)round and biconcave

(4)round and biconvex

Nerve cell is

(1) largest and branched

(2) longest and branched

(3) longest and unbranched

(4) largest and unbranched

Which of the following represents the prokaryotic cell

(1) bacteria, blue-green algae, mycoplasma, PPLO

(2) bacteria, blue-green algae, microbes, chlorella

(3) bacteria, blue-green algae, slime moulds and Diatoms

(4) bacteria, blue-green algae only

Which of the following is incorrect match

(1)bacillus- rod like

(2)coccus-comma shaped

(3)vibrio-comma shaped

(4)spirillum-spiral