The Cells: The Raw Materials And Building Blocks Flashcards

1
Q

Allows materials into and out of the cell is called ?

A

A cell membrane

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2
Q

Cell membranes are selectively permeable because____?

A

They choose what goes into and out of the cell, as well as holding the cell contents together acting as a protective covering

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3
Q

A cell membrane is made up of biphospholipid bilayer

A

Prevents polar (hydrophilic) molecules from passing through the membrane as well as hydrophobic molecules to pass through easily

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4
Q

Channels allow?

A

Substances into the cell

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5
Q

Moving things in and out of the cell can be done in which two ways?

A

Passive transport and active transport

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6
Q

Passive transport requires ?

A

No extra form of energy to complete

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7
Q

Active transport requires?

A

Some addition of energy to make it

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8
Q

Passive transport can be divided into 4 parts:

A

Diffusion, osmosis, filtration, and facilitated diffusion

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9
Q

The most common form of passive transport is?

A

Diffusion

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10
Q

A substance of higher concentration travels to an area of lesser concentration is called?

A

Diffusion

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11
Q

Water travels through a selectively permeable membrane when a concentration gradient is present is called?

A

Osmosis

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12
Q

Water will travel across a membrane from an area of low solute concentration to an area of high concentration until solute is concentration is equal is ?

A

Osmosis

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13
Q

The ability of a substance to pull water toward an area of higher concentration is called?

A

Osmotic pressure

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14
Q

The greater the concentration the greater the?

A

Osmotic pressure

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15
Q

Pressure is applied to force water and its dissolved materials across a membrane is called?

A

Filtration

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16
Q

Only solutes that can fit through channels and other openings in the membrane will?

A

Filter across it

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17
Q

A carrier molecule helps a substance move across the membrane is called?

A

Facilitated diffusion (carrier mediated passive transport) a variation of diffusion

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18
Q

Protein carriers move molecules across?

A

A membrane down its concentration gradient

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19
Q

What are the three types of active transport?

A

Active transport pumps, endocytosis, and exocytosis

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20
Q

Requires the addition of an energy in the form of ATP to move a substance is called?

A

Active transport pump (a carrier mediated active transport) to ATP

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21
Q

Energy is needed because the cell is trying to move a substance?

A

Into an area that already has a high concentration of the substance

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22
Q

A protein carrier is used to move?

A

The substance up the concentration carrier

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23
Q

Used by cells for the intake of liquid and food when the substance is too large to diffuse across the membrane is called?

A

Endocytosis

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24
Q

Pinocytosis is the process when ?

A

Water is being transported

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25
The transport of things out of the cell is called?
Exocytosis
26
A gel-like substance composed of water, nutrients, ad electrolytes
Cytoplasm
27
The nucleus is the?
“Brains of the cell”
28
Dictates the activities of the other organelles in the cell
Nucleus
29
Has a double wall membrane with large pores allowing certain materials to pass in and out, while preventing other materials from entering
Nucleus
30
Found in the nucleus that contains DNA
Chromatin
31
DNA contains the blueprints, or specifications, for the creation of new cells is ?
A chromatin
32
Chromatin will eventually form ______, which carry ______
Chromosomes , genes
33
Genes determine our ?
Inherited characteristics
34
A spherical body made up of dense fibers is found within the cell nucleus is called?
Nucleolus
35
The major function is to synthesize the ribonucleic acid RNA that forms ribosomes is called?
Nucleolus
36
Organelles found on the endoplasmic reticulum (ER) or found floating around in the cytoplasm
Ribosomes
37
Ribosomes are made up of ?
RNA (ribonucleic acid)
38
Assist in the production of enzymes and other protein substances that are needed for cell repair and reproduction
Ribosomes
39
Ribosomes can be considered the “remodeler” of the cell because?
It takes an existing structure and maintaining and repairing it
40
Contain centrioles that are involved in the division of the cell?
Centrosomes
41
Tubular shaped and usually found in pairs?
Centrioles
42
Acts as the power plant to provides up to 95% of our bodies energy needs for cellular repair, movement, and reproduction
Mitochondria
43
The energy produced in the form of ATP if formed by ?
Cellular respiration
44
One form of ER has a sandpaper-like surface with ribosomes on it that is responsible for is called?
Rough ER, responsible for synthesis of proteins
45
The second form of ER has no ribosomes and appears smooth is called?
Smooth ER and it synthesis lipids
46
Stack of flattened sacs that plays a role in packaging proteins or other substances for export from the cell membrane
Golgi apparatus
47
Act to digest worn-out cell organelles and foreign substances that enter the cell
Lysosomes
48
Destroying unwanted bacteria by participating in the process called?
Phagocytosis
49
Flagella are a ?
Whip-shaped tails that move some cells, like sperm, to other locations
50
Cilia are ?
Short, microscopic, hair-like projections located on the outer surface of some cells
51
Move particles in a wavelike motion
Cilia
52
Without this process, your cells will quickly die
Cellular respiration
53
How does energy get from food to cells?
The body takes in food and breaks it down (digestion), during this process energy is released from the food
54
Cells can’t use this energy directly, only when ?
The food is converted to glucose it can be used to make energy (ATP)
55
During cellular respiration, glucose is “burned” in the presence of?
Oxygen, making water, carbon dioxide, and lots of energy
56
What is the point of cellular respiration?
To make energy in the form of ATP
57
what is ATP made up of?
Base, sugar, and three triphosphate) phosphate groups
58
Mitosis (asexual reproduction) helps to ?
Replace body cells to repair and regenerate damaged tissues
59
Meiosis is involved in sexual reproduction in which?
Two different cells unite to form a new cell
60
Meiosis produces gametes (sexual cells) while mitosis is ?
Asexual and reproduce exact copies of itself
61
Two major phases of a cell’s life are known as ?
The cell cycle
62
Most of the time the cell is int he interphase where it is ?
Not dividing and is performing its normal function
63
When the cell needs to reproduce itself, it enters what phase?
Mitotic phase
64
The mitotic phase is divided into two major portions called?
Mitosis and cytokinesis
65
Mitosis has 4 phases called?
Prophase, metaphase, anaphase, and telophase
66
Cytokinesis is the division of ?
The cytoplasm
67
This phase is when the nucleus disappears, the chromosomes become visible, the spindle forms?
Prophase
68
In this phase the chromosomes line up in the center of the cell?
Metaphase
69
In this phase the chromosomes split and the spindles pull them apart?
Anaphase
70
In this phase the chromosomes go to the far ends of the cell, the spindles disappears and the nuclei reappear
Telophase
71
What happens during or directly after telophase ?
Cytokinesis happens and the cell divides in half
72
The original cell was the mother cell that has now formed?
Two new identical daughter cells
73
The two new daughter cells identical to the original mother cell is the result of?
Mitosis (asexual reproduction)
74
What are the 4 primary micro-organism
Bacteria, viruses, fungi, and protozoa
75
Bacteria are what type of cells?
Prokaryotic cells with no nucleus and few organelles
76
Bacteria can be harmful as in the case of pathogens or they can be ?
Harmless bacteria called normal flor and is essential for life
77
Viruses are?
Infectious particles that can’t grow or eat or reproduce by themselves unless the enter another cell and use that cell for energy
78
Viruses do not respond to ?
Antibodies and dormant in the body and become active later in life
79
Fungi, the plural form of fungus can be?
A single-celled or multi-celled organism and can cause infections in the body
80
They are plant-like organism with tiny filaments called?
Mycelia that travels from the cell to find and absorb nutrients
81
How does fungi spread
Through the release of spores
82
A one-celled, animal-like organism that can be found in water and soil
Protozoa
83
All living things are made up of?
One or more cells that are fundamental units of all living organisms
84
Cells are composed of a variety parts necessary for proper cellular function called?
Organelles
85
Can cause disease through ingestion or insect bites?
Protozoa