Cytology Flashcards

(104 cards)

1
Q

Coined the term “cell”

A

Robert Hooke

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2
Q

Proposed the first cell theory

A

Schleiden and Schwann

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3
Q

The Cell Theory:

a. _____ _____ come from _____ _____
b. _____ _____ _____ are composed of _____
c. The _____ is the _____ structural unit of _____ _____ _____

A

a. All cells come from other cells
b. All living things are composed of cells
c. The cell is the simplest structural unit of all living things

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4
Q

Part of the cell:

Outer boundary

A

Cell or plasma membrane

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5
Q

Part of the cell:

Point of interactions to external environment

A

Cell or plasma membrane

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6
Q

Part of the cell:

Central area

A

Nucleus

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7
Q

Part of the cell:

Contains genetic cell materials

A

Nucleus

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8
Q

Part of the cell:

Directs cell activities

A

Nucleus

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9
Q

Part of the cell:

Between the cell membrane and the nucleus

A

Cytoplasm

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10
Q

Part of the cell:

Encloses the cell

A

Cell or plasma membrane

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11
Q

Part of the cell:

Supports cell contents

A

Cell or plasma membrane

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12
Q

Part of the cell:

Selective barrier

A

Cell or plasma membrane

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13
Q

Part of the cell:

Manage communications between cells

A

Cell or plasma membrane

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14
Q

The plasma membrane is a _____ membrane

A

Semipermeable

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15
Q

A mixture of liquids, solids, or gasses in which the
substances are uniformly distributed with no clear boundaries
within the substance

A

Solution

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16
Q

Movement of molecules from an area of higher concentration to an area of lower concentration in a solution

A

Diffusion

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17
Q

The movement of solvent across a permeable membrane

A

Osmosis

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18
Q

Movement of molecules through the phospholipid bilayer

A

Simple diffusion

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19
Q

Movement of molecules through transport protein

A

Facilitated diffusion

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20
Q

Movement of small and non-polar particles through a phospholipid bilayer

A

Simple diffusion

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21
Q

Movement of large or polar particles through a transport protein

A

Facilitated diffusion

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22
Q

The force required to prevent the movement of water by osmosis across a selectively permeable membrane

A

Osmotic pressure

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23
Q

The number of _____ particles determines the osmotic pressure

A

Solute

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24
Q

Solution that has the same concentration of solute particles and the same osmotic pressure as another solution

A

Isosmotic

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25
Solution that has a greater concentration of solute particles and a greater osmotic pressure than another solution
Hyperosmotic
26
Solution that has a lower concentration of solute particles and a lower osmotic pressure than another solution
Hypoosmotic
27
Diffusion that is assisted by proteins
Facilitated Diffusion
28
A cell in an isotonic solution will [shrink/rupture/maintain its size]
Maintain its size
29
A cell in a hypotonic solution will [shrink/swell/maintain its size]
Swell
30
A cell in a hypertonic solution will [shrink/swell/maintain its size]
Shrink
31
Means rupture
Lysis
32
Means shrink
Crenation
33
Movement of ions and molecules assisted by transport proteins across a plasma membrane
Mediated transport
34
Movement of ions and molecules by ATP
Active transport
35
Term that describes the movement of molecules from an area of lower concentration to an area of higher concentration
Uphill
36
Part of the Cell: | A membrane bound sac that surrounds substances within the cytoplasm of the cell
Vesicle
37
Movement of materials by vesicles in and out of the cell through an active process
Vesicular transport
38
Vesicular transport of materials into the cell
Endocytosis
39
Term for cell "eating"
Phagocytosis
40
Term for cell "drinking"
Pinocytosis
41
Vesicular transport of materials out of the cell
Exocytosis
42
What are the three components of cytosol?
Fluid portion, cytoskeleton, cytoplasmic inclusion
43
Dissolved ions and molecules in the cytosol
Solution
44
Ions and molecules suspended in the cytosol
Colloid
45
Part of the cell: | Proteins that support the cell
Cytoskeleton
46
Part of the cell: | Hold organelles in shape
Cytoskeleton
47
Part of the cell: | Enables cell to change shape
Cytoskeleton
48
Part of the cell: | Assist in the process of cell division
Microtubules
49
Part of the cell: | Forms organelles e.g. flagella, cilia, spindle fibers
Microtubules
50
Part of the cell: | Small fibrils that form bundle or networks in the cytoplasm of the cell
Microfilaments
51
Part of the cell: | Provides ability for muscle to contract
Microfilaments
52
Part of the cell: | Provides mechanical support of the cell
Intermediate microfilaments
53
Part of the cell: | Chemicals that are produced by the cell
Cytoplasmic inclusion
54
Part of the cell: | Cell structure that are specialized for functions
Organelles
55
T/F: The nucleus has pores for passage of materials
True
56
Part of the cell: | Part of the DNA that directs cell functions and structures
Genes
57
Part of the cell: | Structure of nuclear DNA
Chromosomes
58
Part of the cell: | Delicate filaments of chromosomes dispersed in the nucleus
Chromatin
59
Each chromosome consists of _____ chromatids
Two
60
Part of the cell: | Round nuclear body found in the nucleus with no surrounding membranes
Nucleolus
61
Part of the cell: | Produces rRNA
Nucleolus
62
Part of the cell: | Site where proteins are produced
Ribosomes
63
Part of the cell: | Site where proteins are synthesized for export outside the cell
Rough endoplasmic reticulum
64
Part of the cell: | Site for lipid and carbohydrate synthesis
Smooth endoplasmic reticulum
65
Part of the cell: | For detoxification of chemicals within the cells
Smooth endoplasmic reticulum
66
Part of the cell: | Collects, modifies, and distributes proteins and lipids to various locations
Golgi apparatus
67
Part of the cell: | Small membrane bound sacs that transport materials produced by the cell outside of the cell
Secretory vesicles
68
Part of the cell: | Have enzymes that act as an intracellular digestive system
Lysosome
69
Part of the cell: | Involved in the inflammatory process
Lysosome
70
Lysosome break down bone to produce _____
Calcium
71
Part of the cell: | Membrane bound vesicles containing enzymes that breakdown fatty acids, amino acids and, hydrogen peroxide
Peroxisomes
72
Part of the cell: | Tunnel like structure that is responsible for the breakdown and recycling of proteins within the cells
Proteasomes
73
Part of the cell: | Bean shaped, rod shaped, thread like organelles responsible for the production of ATP
Mitochondria
74
Part of the cell: | Specialized zone of cytoplasm that is the center for microtubule formation
Centrioles
75
Part of the cell: | Hair like structure responsible for movement of particles outside of the cell
Cilia
76
Part of the cell: | Responsible for movement of cell
Flagella
77
Part of the cell: Extension of plasma membranes supported by microfilaments found in the intestines
Microvilli
78
Method of taking cells apart and separating the major organelles from one another
Cell fractionation
79
Used to fractionate cells into their component parts
Centrifuge
80
``` Common to all cells: They are bound by a _____ _____ They contain a semi-fluid substance called _____ They contain _____ They all have _____ ```
``` Common to all cells: They are bound by a plasma membrane They contain a semi-fluid substance called cytosol They contain chromosomes They all have ribosomes ```
81
_____ cells contain a true nucleus, bound by a membranous nuclear envelope
Eukaryotic
82
_____ cell do not contain a nucleus
Prokaryotic
83
_____ cell has organelles
Eukaryotic
84
Prokaryotic cells have their DNA located in a region called _____
Nucleoid
85
Plasma membrane is composed of a _____ _____
Lipid bilayer
86
What are the three major components of a cell?
Cytoplasm, organelles, cytosol
87
Cell shape: | Thin and flat
Squamous
88
Cell shape: | Tall and rectangular
Columnar
89
Cell shape: | Cubes
Cuboidal
90
Cell shape: | Spindle-shaped
Fusiform
91
Cell shape: | Many sides
Polygonal
92
Cell shape: | Star-like
Stellate
93
Cell shape: | Globular
Spherical
94
Cell shape: | Disc-shape
Circular
95
Cell shape: | Elongated
Threadlike
96
Cell shape: | Long, cylindrical
Filamentous
97
Cell shape: | Spider web
Spider-like
98
What are the three basic bacterial shapes?
Coccus, bacilli, spirillum
99
Bacterial shape: | Sphere-shaped
Coccus
100
Bacterial shape: | Rod-shaped
Bacilli
101
Bacterial shape: | Spiral-shaped
Spirillum
102
Bacterial shape: | Streptococcus
Coccus
103
Bacterial shape: | Lactobacillus
Bacilli
104
Bacterial shape: | Spirillium
Spirillium