Cell Unit Of Life Flashcards
(85 cards)
1
Q
Study of cell is called
A
Cytology
2
Q
Father of cytology
A
Robert hook
3
Q
The term cell was given by?
A
Micrographia
4
Q
Discovery of living cell
A
Antonen leuohook
5
Q
Discovery of nucleus
A
Robert brown (1832)
6
Q
Cell theory was given by
A
Schwann, scheiden
7
Q
What slogan did vircho gave back in 1855
A
Double omnisim cellula -é- cellula
8
Q
Prokaryotic cells basic things
A
Naked DNA, nuclear membrane absent, single chromosome
9
Q
In prokaryotic all’s the cell is made up of?
A
Peptidoglycane (absent in microplasma)
10
Q
Howomany ribosomes are there in prokaryotes
A
70 s
11
Q
Does organelle in prokaryote have any membrane ?
A
No
12
Q
DNA in prokaryotes present in?
A
Neucloid
13
Q
Does eukaryotes have membrane
A
Yes
14
Q
Size or shape of chromosome in eukaryotes
A
Linear with histone protein
15
Q
Cell wall in eukaryote is made up of
A
Cellulose
16
Q
How many ribosome are these in eukanoyte
A
80S
17
Q
Does organelle of eukaryote have membrane?
A
Yes
18
Q
Where are some extra DNA stored in eukaryote?
A
Mitochondria and plastid
19
Q
Smallest cell
A
Mycoplasma
20
Q
Largest plant cell
A
Acetabularia
21
Q
Largest animal cell
A
Ostrich egg
22
Q
Largest human cell
A
Ovum
23
Q
Smallest human cell
A
Sperm
24
Q
Longest human cell
A
Nerve cell
25
What are the things that are absent in animal cell?
Cell wall, vacuoles, plastid , central largest sap vacuole ,
26
Which organelle in animal cell is most common?
Lysosomes
27
How food is stored in animal cell in which form?
Glycogen
28
The name of the method by which animal cell divide
Furrow method
29
What are the things that are present in plant cell?
Cell wall, vacuoles ,plastid
30
A centrosomes present absent in plant cell
Absent
31
Which organelle are found most rare in plant cell
Lysosomes
32
Name of the method by which cell divides in plant cell
Cell plate formation method
33
What are the organelle which has double membrane
Mitochondria and plastid
34
Single membrane organelle
Golgi body lysosomes SAP vacuoles
35
What are the non-membrane organelle?
Centrosome, ribosome
36
The term cytoplasm was given by
Stress burger
37
What is the basic function of cell wall?
Rigidity and protection
38
In plant and algae, the cell wall is made up of where as in fungi is made up of
Cellulose,kiten
39
What is the function of middle lamila
Cementing material basically joints, primary layer of two cells
40
The formation of middle lamila
90% calcium pactid 10% magnesium pactid
41
Cell wall is made up of cellular, but it is made up of several things which combine and called
Microfibrils
42
What are the other substances which are present in the cell wall along with micro fibrils
Cutin Suberin pectin lignin
43
What are the basic four shapes of bacteria?
Bacillus , coccus, vibrio, spirillum
44
What are the three layers in prokaryotic cells?
Plasma membrane, cell wall and glycocalyx
45
in prokaryotes , the genetic material is in the form of
Circular dna
46
What are the things which are attached in the in folds of plasma membrane in prokaryotic cells?
Circular DNA attached
47
Folds in prokaryotic cell has some enzymes which are helpful in
Mesosomes for respiration and work as mitochondria of eukaryotic cell
48
Gram positive bacteria shows which colour
Blue or purple and also have thick cell wall
49
Gram negative bacteria show which colour
Pink and red and they have thin wall
50
Plasma present in prokaryotic cells have how many types of genes and name them
F. Gene r. Gene .col gene
51
Unique features of eukaryotic cell
Centriole and plasma membrane is exposed
52
Is plasma membrane of plant cell is selectively permeable? And semipermeable
Yes
53
Does plasma membrane of plant cell shows variation
Yes
54
Sandwich model of plasma was given by
Danielli davson
55
Why sandwhich model got failed what were the drawbacks of it
Did not show the movement of plasma membrane and also the entry of water
56
What was the protein : phospholipid in sandwhich model
6:4
57
Unit membrane model of plasma was given by ?
Robert son
58
What is the thickness of plasma membrane according to unit model of plasma
75 to 100 a
59
Why did unit membrane model of plasma got failed ? And what was the name of the combination of sandwhich model and unit membrane model of plasma
Cannot explain the water entrance
P:pl
Dynamic ratio
Called lamillar model
60
Fluid mosaic model was given by
Singer Nicholson
61
which protein is used in formation of plasma membrane acc to fluid mosaic model ?
Alpha globular
62
According to fluid Mossiac model, how many types of movement does phospholipids lipid show?
Flip-flop movement, transition movement
63
What are the method of transportation across the plasma membrane which one is lower?
Passive transport, active transport passive does not require ATP. It is lower and it is done by concentration, gradient whereas active transport is with ATP faster and energy. Dependent movement also can be against the concentration gradient
64
Which one of the process of transportation is not affected by lower temperature or oxygen or metabolic cyanide?
Passive transport example diffusion osmosis
65
Which one of the following transportation process is affected by lower temperature absence of O2 and cyanide?
active transport example sodium potassium pump endocytosis are exocytosis
66
What happen when animal cell is placed in an hypertonic solution?
It might rupture endosmosis will occur
67
What happen when the animal cell is placed in hypertonic solution?
Exocytosis, it might shrink
68
What principle does work in closing and opening of stomata?
Osmosis
69
From what principle does touch may not plant works
Osmosis
70
What are the basic factors affecting rate of diffusion
Temperature density of a medium is directly proportional to diffusion distance concentration of gradient
71
What does basic idea of facilitated diffusion means?
Protein binds with substance and move and release it into cytoplasm
72
What kind of process are endocytosis and exocytosis are?
Active transport
73
Tell the term name of phagocytosis and pinocytosis
Phagocytosis equals to cell eating pinocytosis, meaning cell drinking
74
Location of micro villi’s in our body
Intestinal DC T of nephron
75
Plasma membrane of cell show some kind of different changes between the cell. How many type of junction does it makes?
Interdigitation, tight junction, gap, junction, desmosome, terminal bars, plasmodesmata Oh
76
When the carbohydrate group is directly attached to a lipid, it is known as
Glycolipid
77
When the carbohydrate group is attached on a protein above the lipid, it is known as
Oligosaccharide, glycoprotein
78
Cell wall is formed during the formation of
Cytokinesis
79
Between two adjacent cell, the layer which binds to cell wall together called
Middle lamila
80
How many layers are there in a cell wall?
Primary layer, secondary layer, middle lamila
81
Which one layer in the cell wall is very thin and has elasticity in it
Primary layer
82
Which layer in the cell wall has the property of rigidity and thickness
Secondary layer
83
What are the components that the primary layer in the secondary layer are made up of in a cell wall?
They are composed from cell, those hemi, cellulose, pectin and proteins
84
What are the additional protein which are involved in cell wall?
Pectin , Suberin , cutin Hemi cellulose
85
Cell wall materials, hemi cellulose pectin are synthesised in plant
Goldie body
