Chapter 1: Cell The Unit Of Life

Question 1

What is it that makes an living organism?or what is it than an inanimate thing does not have?

Answer 1

Presence of Cell(basic unit of life)

Question 2

Unicellular organisms are capable of

Answer 2

1.Independent existence
2.performing essential functions of life

Question 3

Anything less than a complete structure of a cell does not ensureindependent living

Answer 3

Yes

Question 4

Anything less than a complete structure of a cell does not ensureindependent living

Answer 4

Yes

Question 5

Cell is a

Answer 5

Functional and structural unit of living organism

Question 6

Cell and organelles viewed under

Answer 6

Electron microscope

Question 7

Cell and organelles viewed under

Answer 7

Electron microscope

Question 8

Who first saw and described a living cell

Answer 8

Anton von leeuwenhoek

Question 9

Anton described in

Answer 9

Movable- Bacteria, protozoa, spermatozoa,red blood corpuscles

Question 10

Anton described in

Answer 10

Movable- Bacteria, protozoa, spermatozoa,red blood corpuscles

Question 11

Who is known as the father of micro biology

Answer 11

Anton von leeuwenhoek

Question 12

Who is known as the father of micro biology

Answer 12

Anton von leeuwenhoek

Question 13

Who discovered nucleus

Answer 13

Robert brown in 1831

Question 14

Who discovered nucleus

Answer 14

Robert brown in 1831

Question 15

Who said plants are composed of different kinds of cells which form the tissues of the plant
He is the one who described a plant cell

Answer 15

Matthias schleiden(a German botanist) in 1938

Question 16

Who described an animal cell
Reported cells had a thin outer layer which is known as plasma membrane or cell membrane
Concluded cell wall is a unique character of plants

Answer 16

Theodore schwann( a British zoologist)in 1839

Question 17

Who formulated the cell theory together

Answer 17

Schleiden and schwann

Question 18

Schleiden and schwann could not explain?

Answer 18

How new cells were formed

Question 19

Who explained that cell divided and new cells are formed from pre existing cells
(Called Omni cellula-e- cellula)

Answer 19

Rudolf virchow in 1855

Question 20

Who gave the final shape to cell theory

Answer 20

Rudolf virchow

Question 21

Who gave the final shape to cell theory

Answer 21

Rudolf virchow

Question 22

State cell theory

Answer 22

1.all living organisms are composed of cell and products of cells
2.all cells arise frompre existing cells-omni cellula e cellula
3.activities of an organism are outcome of sum total of activities and interactions of its constituent cells

Question 23

Who discovered dead cell

Answer 23

Robert hooke in 1665 in cork tissue in quercus plant

Question 24

Unicellular microscopic organisms were first studied by

Answer 24

Anton von leeuwenhoek

Question 25

Unicellular microscopic organisms were first studied by

Answer 25

Anton von leeuwenhoek

Question 26

What is the smallest cell in the world?

Answer 26

Mycoplasma (0.3 µm).

Question 27

What is the largest isolated ring cell

Answer 27

Ostrich egg

Question 28

What is the largest isolated ring cell

Answer 28

Ostrich egg

Question 29

What is the size of bacteria

Answer 29

3 to 5 micrometers

Question 30

What is the size of bacteria

Answer 30

3 to 5 micrometers

Question 31

What is the diameter size of human RBC

Answer 31

7 microns

Question 32

Longest and branched cell

Answer 32

Nerve cell

Question 33

Longest and branched cell

Answer 33

Nerve cell

Question 34

Typical eukaryotic cell size

Answer 34

10-20 microns

Question 35

Typical eukaryotic cell size

Answer 35

10-20 microns

Question 36

Pplo size

Answer 36

0.1 microns

Question 37

Pplo size

Answer 37

0.1 microns

Question 38

Size of virus

Answer 38

0.02 to 0.2 microns

Question 39

Typical bacteria sie

Answer 39

1-2 microns

Question 40

Mycoplasma

Answer 40

A type of bacteria

Question 41

Mycoplasma

Answer 41

A type of bacteria

Question 42

Typical bacteria excludes mycoplasma as it lacks

Answer 42

Cell wall

Question 43

Eukaryotic cell is differs by having membrane bound cell organelles from

Answer 43

Prokaryotic cells

Question 44

Which cell organelle is **non membrane bound cell organelle** seen in both pro and eukaryotic cells

Answer 44

Ribosomes

Question 45

Which cell organelle is **non membrane bound cell organelle** seen in both pro and eukaryotic cells

Answer 45

Ribosomes

Question 46

Ribosomes are located in

Answer 46

Cytoplasm, rough endo plasmic reticulum, chloroplast(plants), mitochondria

Question 47

Shape of red blood cells

Answer 47

Round and biconcave

Question 48

Shape of red blood cells

Answer 48

Round and biconcave

Question 49

Shape of WBC

Answer 49

Amoeboid( irregular shape)

Question 50

Shape of WBC

Answer 50

Amoeboid( irregular shape)

Question 51

Shape of columnar and epithelial cells

Answer 51

Long and narrow

Question 52

Shape of columnar and epithelial cells

Answer 52

Long and narrow

Question 53

Shape of nerve cell

Answer 53

Branched and long

Question 54

Shape of nerve cell

Answer 54

Branched and long

Question 55

Shape of nerve cell

Answer 55

Branched and long

Question 56

Shape of nerve cell

Answer 56

Branched and long

Question 57

Shape of nerve cell

Answer 57

Branched and long

Question 58

A tracheid(elongated)

Answer 58

Horizontal(spindle shape) Vertical(elongated)

Question 59

Shape of mesophyll cells

Answer 59

Round and oval shaped

Question 60

Shape of a muscular fibre

Answer 60

Rectangular shaped

Question 61

Shape of a muscular fibre

Answer 61

Rectangular shaped

Question 62

Shape of sponges

Answer 62

Coanocytes shaped

Question 63

Shape Mesophyll cells

Answer 63

Round and oval

Question 64

The shape of the cell may vary with

Answer 64

The function they perform

Question 65

The shape of the cell may vary with

Answer 65

The function they perform