Cell Biology Flashcards
(127 cards)
1
Q
The catabolic enzymes are found in
A
Lysosome
2
Q
Thylakoids are associated with
A
Photosynthesis
3
Q
“Cells arise from pre-existing cells only by reproduction.” This theory was given by
A
Virchow
4
Q
Who first discovered the living cell?
A
Leeuwenhoek
5
Q
Aerobic respiration inside the cell occurs in
A
Mitochondria
6
Q
Energy is stored in the cell in
A
Mitochondria
7
Q
Invention of the microscope is credited to
A
Robert Hooke
8
Q
The protein tubulin is found in
A
Centriole
9
Q
The extranuclear cell organelles which possess hereditary materials are
A
Mitochondria and plastids including chloroplasts
10
Q
The site for protein synthesis is
A
Ribosome
11
Q
All of the following are membrane-bound except
A
Centriole
12
Q
Which of the following structures is not possessed by a eukaryotic cell?
A
Incipient nucleus
13
Q
Enzymes that take part in glycolysis are present in
A
Cytoplasm
14
Q
Which of the following is true for prokaryotic cells?
A
They have circular DNA
15
Q
Genetic material of eukaryotic organisms is
A
DNA
16
Q
The thin delicate membrane just attached to the cytoplasm is
A
Tonoplast
17
Q
Which of the following is correct?
A
Mitochondria are responsible for respiration and secretion
18
Q
The layer found between the cell wall of two cells is called
A
Middle lamellae
19
Q
Control center of the cell is
A
Nucleus
20
Q
The sugar present in fruits, honey, and nectar is
A
Fructose
21
Q
In nucleic acids, nucleotides are joined by
A
Phosphate bond
22
Q
Metabolic event taking place in the cell
A
DNA → RNA → Protein
23
Q
Which is not a lipid?
A
Polysaccharide
24
Q
The amino acid ‘Glycine’ is found
A
Inside phospholipid layer
25
All proteins are
amino acids
26
Which is true about lipids?
They are soluble in non-polar solvents
27
Lipids are
Hydrophobic and hydrophilic
28
Which of the following is correct?
Lysine and leucine are essential amino acids
29
All nucleic acids are made of
Nucleotides
30
The aspect of protein structure to which the genes most directly relate
Primary
31
Protein that gives off amino acids only on hydrolysis
Albumin and globulin
32
NOT a part of nucleotides
Steroid
33
Molecular formula of chitin is
(CzH58N40zn)n
34
As the size of protein increases
It becomes less soluble and more heat coagulable
35
X-ray crystallography is used to study
Three-dimensional structure of proteins
36
Pyrenoids are found in
Chloroplast
37
Ribosome in prokaryotes is
70S type
38
Large number of grana occurs in
Plastid
39
A thin membrane that envelops the structure of the chromosome is known as
Pellicle
40
The cell wall is interrupted by minute pores called
Plasmodesmata
41
Which of the following occurs in mitochondria?
Kreb's cycle and ATP synthesis and fatty acid oxidation and amino acid synthesis
42
The process by which all organelles are separated from the cell is
Fractionation
43
Which microscope would you use to examine a culture of living cells?
Phase contrast microscope
44
When all organelles are removed from a cell, the remaining fluid-like portion left is called
Hyaloplasm
45
The temperature at which protoplasm coagulates is
60 to 70°C
46
Which process occurs in chloroplast?
Photo-phosphorylation
47
What is wrong about mitochondria?
Looks green due to the presence of chloroplast
48
What is wrong about Golgi bodies?
found in living organisms
49
Chloroplasts are green due to the presence of
Chlorophyll
50
Eukaryotic cells differ from prokaryotic cells in having
Presence of cisirons
51
Endoplasmic reticulum is made up of
Tubules, vesicles, and flat sacs
52
Which is wrong?
Cell wall completely isolates adjacent cells
53
Description correctly matching corresponding junction type is
Interwoven processes - Interdigitations
54
The cell and the corresponding substances stored in storage parenchyma are
specialized cells - nectar and oil
55
Chromosomes at anaphase are of shapes due to the position of the centromere. It is shaped when the centromere is at
Sub-terminal
56
In histology, the details of tissue structure are observed through a definite technique which involves treatment of tissues in order. The correct sequence is
Fixing - dehydration - embedding - sectioning - staining - mounting
57
A tissue is a group of cells which are
Similar or dissimilar in structure but common in origin and function
58
Cell drinking is referred to as
Pinocytosis
59
Which organelle contains the maximum enzymes of the cell?
mitochondria
60
Prokaryotic genetic system has
DNA but no histones
61
The term "suicidal bag" is used for
Lysosomes
62
Which of the following structures other than the nucleus contains DNA?
Mitochondria
63
Proteins are synthesized by
Ribosome
64
A light microscope has a magnification of about
1500 times
65
The protein embedded in the lipid in the cell membrane is
Integral protein
66
Enzymes for various functions are found in complex form in
membrane
67
Mitochondria are found in
In all eukaryotic cells
68
Animal cell inter junctions are called
Desmosome
69
Lysosomes contain enzymes which are
phospholipids hydrolyzing enzymes
70
The polypeptide assembly can be found on
Ribosome
71
Beetroots are colored due to the presence of
Anthocyanin in vacuole
72
Lysosomes are called suicidal bags because they have
Hydrolytic enzymes
73
Lipid bilayer is impermeable to
Large polarized charge
74
Plant cells are connected by channels through their walls called
Plasmodesmata
75
Main component of endoplasmic reticulum is
cisternae
76
The most prime component of the cell wall is
Cellulose
77
Who coined the term "cell"?
Robert Hooke
78
Function of Golgi bodies is
Formation of glycoprotein and glycolipid
79
Which of the following lacks a nucleus?
RBC of man
80
Bacterial and eukaryotic cells have similar
Ribosome
81
Cellular totipotency is demonstrated by
All plant cells
82
Spindle fiber is made up of protein
Tubulin
83
Core element of chlorophyll is
Mg
84
Protein synthesis takes place in
Ribosome
85
The most common character between prokaryotes and eukaryotes is
Presence of ribosomes
86
Glycosylation is carried out by
Endoplasmic reticulum
87
Chromoplasts are modified plastids, rhodoplast mainly consists of pigment
r- phycocyanin and r- phycoerytherin
88
If 'G' represents gametophytic generation and 'S' represents sporophytic generation in plants, the sequence in their life cycle is
G - S - G - S - G
89
Nucleus of the cell was discovered by
Robert Brown
90
Red color of tomato is due to
Conversion of chloroplast to chromoplast
91
The filaments of cilia and flagella are composed of?
Microtubules
92
The point which provides the site for spindle attachment is called?
Kinetochore
93
Which of the following is common to prokaryotes and eukaryotes?
Genetic code
94
The layer of the cell wall that is formed soon after cell division and is composed of calcium pectate?
Middle lamella
95
Oxysomes are present in?
Inner membrane of mitochondria
96
Largest cell organelle is?
Mitochondria
97
Which one of the following is the largest cell component?
Nucleus
98
ATP synthesis takes place in?
Mitochondria
99
ATP is formed inside mitochondria at?
oxysome
100
Which one of the following in a cell is non-living?
Vacuole
101
Which one of the following has a single membrane structure?
Lysosome
102
Which of the following in a cell is non-living?
vacuole
103
The prokaryotes have?
Naked DNA
104
Centromere is a part of?
Chromosome
105
Chiasma formation occurs during?
Diplotene
106
Which of the following part of a cell is non-living?
Cell wall
107
Nucleolus in plant cells is involved in the synthesis of?
rRNA
108
Prokaryotes differ from eukaryotes in?
Absence of nuclear membrane
109
Which of the following helps in protein synthesis and transportation?
Endoplasmic reticulum
110
Circular DNA is found in?
Mitochondria and chloroplast
111
Respiration occurs in the cellular component in which complex organic compounds are broken into simpler ones. Where does respiration occur?
Mitochondria
112
The eukaryotic ribosome is made up of two subunits which are?
40S + 60S
113
Prokaryotic cell differs from higher plant cell wall in having?
Murein
114
Manganese is largely found in?
Chloroplast
115
Large size of thylakoid is called?
Grana lamella
116
In mitochondria, which is present?
Oxysomes
117
The marker enzyme of mitochondria is?
Succinate dehydrogenase
118
The shape of the nucleolus is maintained by?
Mg²⁺
119
The complex of sugar polymers and proteins which are patchily distributed on the plasma membranes of animal cells is called?
Glycocalyx
120
Maximum cellulose is found in?
secondary cell wall
121
Function of Golgi bodies is?
Glycosylation of lipid and protein
122
Which organelle eats old organelles?
Lysosome
123
Chloroplast is a semi-autonomous organelle due to?
They contain DNA and have some protein
124
Ribosomes are synthesized in?
Nucleolus
125
Nucleus has maximum size during?
Interphase
126
Plant cells are connected with each other by means of?
Plasmodesmata
127
Star-shaped crystals of calcium oxalate, as in Colocasia, are actually?
sphaeroraphids
