➢CLASS 11th
S.no Scientist name Contribution/Awards NCERT page no.
÷
Ernst Mayr a) called as Darwin of 20th NCERT page 2 Class 11th bio
1) century
b) awarded with triple crown
of biology
Carolus Linnaeus a) gave the system of NCERT page 6 Class 11th bio
2) binomial
nomenclature NCERT page 16 Class 11th bio
b) gave the system of two
NCERT page 29 Class 11th bio
kingdom classification
c) gave artificial system of
classification
Aristotle a) earliest to attempt a more NCERT page 16 Class 11th bio
3) scientific basis of
classification
R.H Whittaker a) gave 5 kingdom system of NCERT page 17 Class 11th bio
4) classification
in 1969
Carl Woese a) gave 6 kingdom Not in NCERT
5) classification
D.J.Iwanosky a) recognized certain NCERT page 26 Class 11th bio
6) microbes as causal
organisms of tobacco
mosaic disease
b) found that virus were
smaller
than bacteria and passed
through bacteria proof
filter
M.W.Beijerinek a) contagium vivum fluidum NCERT page 26 Class 11th bio
7) b) gave the name virus
W.M.Stanley a) viruses could be NCERT page 26 Class 11th
8) crystallised and these bio
crystals consisted largely of
proteins
T.O.Diener a) discovered viroids in 1971 NCERT page 27 Class 11th bio
9)
, a) gave natural system of NCERT page 30 Class 11th bio
10) Bentham and classification
Hooker
a) reported that curly top NCERT page 64 Class 11th bio
11) Katherine Esau virus spreads in a plant
through phloem
b) dominated the field of
plant biology even at the
age of 99
a) discovered triple helical NCERT page 124 Class 11th
12) G.N.Ramachandran structure of collagen bio
b) gave Ramachandran plot
for conformational analysis
of proteins
a) published models of α- NCERT page 124 Class 11th
13) Linus Pauling helix and β-sheet bio
structures of proteins
a) saw first live cell NCERT page 125 Class 11th
14) Leeuwenhoek bio
a) discovered nucleus NCERT page 125 Class 11th
15) Robert Brown bio
(1831)
a) observed that all plants are NCERT page 125 Class 11th
16) Matthias Schielden composed of different bio
(1838) kinds of cells
b) gave cell theory with
schwann
a) animal cells have plasma NCERT page 126 Class 11th
17) Thedore Schwann membrane bio
(1839) b) presence of cell wall is a
unique character to plane
cells
c) gave cell theory along with
schielden
a) explained the concept of NCERT page 126 Class 11th
18) Rudolf Virchow omnis cellula-e-cellula and bio
modified cell theory
a) fluid mosaic model of cell NCERT page 132 Class 11th
19) Singer and Nicolson membrane bio
(1972)
a) discovered golgi complex NCERT page 133 Class 11th
20) Camillo golgi bio
(1898)
a) discovered ribosomes NCERT page 136 Class 11th
21) George Palade (palade particles) bio
(1953)
S.no Scientist name Contribution/Awards NCERT page no.
÷
Ernst Mayr a) called as Darwin of 20th NCERT page 2 Class 11th bio
1) century
b) awarded with triple crown
of biology
Carolus Linnaeus a) gave the system of NCERT page 6 Class 11th bio
2) binomial
nomenclature NCERT page 16 Class 11th bio
b) gave the system of two
NCERT page 29 Class 11th bio
kingdom classification
c) gave artificial system of
classification
Aristotle a) earliest to attempt a more NCERT page 16 Class 11th bio
3) scientific basis of
classification
R.H Whittaker a) gave 5 kingdom system of NCERT page 17 Class 11th bio
4) classification
in 1969
Carl Woese a) gave 6 kingdom Not in NCERT
5) classification
D.J.Iwanosky a) recognized certain NCERT page 26 Class 11th bio
6) microbes as causal
organisms of tobacco
mosaic disease
b) found that virus were
smaller
than bacteria and passed
through bacteria proof
filter
M.W.Beijerinek a) contagium vivum fluidum NCERT page 26 Class 11th bio
7) b) gave the name virus
W.M.Stanley a) viruses could be NCERT page 26 Class 11th
8) crystallised and these bio
crystals consisted largely of
proteins
T.O.Diener a) discovered viroids in 1971 NCERT page 27 Class 11th bio
9)
, a) gave natural system of NCERT page 30 Class 11th bio
10) Bentham and classification
Hooker
a) reported that curly top NCERT page 64 Class 11th bio
11) Katherine Esau virus spreads in a plant
through phloem
b) dominated the field of
plant biology even at the
age of 99
a) discovered triple helical NCERT page 124 Class 11th
12) G.N.Ramachandran structure of collagen bio
b) gave Ramachandran plot
for conformational analysis
of proteins
a) published models of α- NCERT page 124 Class 11th
13) Linus Pauling helix and β-sheet bio
structures of proteins
a) saw first live cell NCERT page 125 Class 11th
14) Leeuwenhoek bio
a) discovered nucleus NCERT page 125 Class 11th
15) Robert Brown bio
(1831)
a) observed that all plants are NCERT page 125 Class 11th
16) Matthias Schielden composed of different bio
(1838) kinds of cells
b) gave cell theory with
schwann
a) animal cells have plasma NCERT page 126 Class 11th
17) Thedore Schwann membrane bio
(1839) b) presence of cell wall is a
unique character to plane
cells
c) gave cell theory along with
schielden
a) explained the concept of NCERT page 126 Class 11th
18) Rudolf Virchow omnis cellula-e-cellula and bio
modified cell theory
a) fluid mosaic model of cell NCERT page 132 Class 11th
19) Singer and Nicolson membrane bio
(1972)
a) discovered golgi complex NCERT page 133 Class 11th
20) Camillo golgi bio
(1898)
a) discovered ribosomes NCERT page 136 Class 11th
21) George Palade (palade particles) bio
(1953)
