Biology –online test : Biology –online test Topic –cell & its organelles
Question no. -1 : Question no. -1 The most primitive cell like chemical aggregates capable of growth and division were
A-eobionts
B-chemoautotrophs
C-prokaryotes
D-microspheres
Question no.-2 : Question no.-2 Under certain conditions, scientists have got cell like structures but without its true organisation, they are called
A-protists
B-eobionts
C-coacervates
D-microbes
Question no.-4 : Question no.-4 The term protoplasm was coined by
A-Robert hooke
B-purkinje
C-Robert brown
D-arioste
Question no.-5 : Question no.-5 The cell discovered in thin sections of cork by Robort hooke were actually
A-cell walls
B-cellulose
C-protoplasm
D-nuclei
Question no.-6 : Question no.-6 Smaller cell is
A-less active metabolically
B-With smaller nucleus
C-with larger nucleus
D-more active metabolically
Question no.-6 : Question no.-6 A genophore (nucleoid) consists of
A-a single stranded DNA
B-histone & RNA
C-A single double stranded DNA
D-Histone & nonhistone
Question no.-7 : Question no.-7 Mitochondria do not occur in
A-bacteria
B-brown algae
C-green algae
D-red algae
Question no.-8 : Question no.-8 Double membrane covering does not occur on
A-mitochondria
B-chloroplast
C-lysosomes
D-nucleus
Question no.-9 : Question no.-9 Ribosomes have their origin from
A-nucleus
B-nucleolus
C-endoplasmic reticulum
D-mitochodria
Question no.-10 : Question no.-10 Which of the structure of cell is non living
A-cell wall
B-plasma membrane
C-cytoplasm
D-nucleus
Question no.-11 : Question no.-11 Structure +ent between nuclear envelope & plasma membrane is
A-nucleoplasm
B-cytoplasm
C-vacuole
D-protoplasm
Question no.-12 : Question no.-12 Hydroplasm of vacuole possesses
A- water
B-minerals
C-water & minerals
D-air
Question no.-13 : Question no.-13 Which of the following are unit membranes?
A-E. R. membrane
B-plasma membrane
C-golgi membrane
D-all of the above
Question no.-14 : Question no.-14 The endoskeleton of the cell is ade up of
A-cell wall
B-endoplasmic reticulum
C-cytoplasm
D-mitochondria
Question no.-15 : Question no.-15 Naked DNA is found in
A-nucleus
B- chloroplast
C-lysosome
D-golgi complex
Question no.-16 : Question no.-16 Dictyosomes are
A-class of ribosomes
B-places of flagella origin
C-respiratory particles
D-golgi bodies
Question no.-17 : Question no.-17 Polyribosomes are aggregates of
A-ribosomes And r RNA
B-only r RNA
C-peroxisomes
D-several ribosomes held together by string of mRNA
Question no.-18 : Question no.-18 Cell sap is
A-living content of cytoplasm
B-nonliving content of cytoplasm
C-nonliving content of vacuole
D-living content of vacuole
Question no.-19 : Question no.-19 Which one is different
A-protoplasm-huxley
B-cell schwann
C-vitamin –funk
D-chromosomes-mendal
Question no.-20 : Question no.-20 Cytochromes occur in
A-lysosomes
B-outer membrane of mitochondria
C-cristae of mitochondria
D-matrix of mitochondria
Question no.-21 : Question no.-21 Plasma membranes of adjacent cells get thickened at certain rigions which are called
A-desmosomes
B-terminal bars
C-peroxisomes
D-secondary walls
Question no.-22 : Question no.-22 The three kinds of macromolecules +ent in the plasma membrane are
A-RNA, DNA & proteins
B-RNA< proteins & carbohydrates
C-DNA, proteins & lipids
D-proteins ,lipids & carbohydrates
Question no.-23 : Question no.-23 Rigidity of cell wall is due to
A-pectin
B-suberin
C-lignin
D-cutin
Question no.-24 : Question no.-24 The lammelar model of plasma membrane was first proposed by
A-Daniell& Davson
B-Robortson
C-Singer & Nicolson
D-Watson & Crick
Question no.-25 : Question no.-25 Singer & Nicolson’s model of plasma membrane differes from Robortson’s model in the
A- No. of lipid layers
B-arrangement of lipid layers
C-arrangement of proteins
D-all of the above