Test #1 Flashcards

(71 cards)

1
Q

Nucleus

A

Organelle which contains DNA

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2
Q

Chromatin

A

The “working form” of DNA

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3
Q

Nuclear Envelope

A

Membrane that separates nuclear contents from cytoplasm

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4
Q

Nucleolus

A

where ribosomes are made

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5
Q

RER

A

membranes that ribosomes use as a platform for proteins

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6
Q

SER

A

(no ribosomes) synthesizing lipids

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7
Q

Vesicles

A

Storage or transport of molecules

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8
Q

Golgi Body

A

Products to be secreted

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9
Q

Mitochondria

A

Transforms energy from food molecules that the cell can use

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10
Q

Lysosomes

A

Contains digestive enzymes

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11
Q

Peroxisosomes

A

break down hydrogen peroxide and other toxins

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12
Q

chloroplasts

A

contains enzymes for photosynthesis

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13
Q

cytoskeleton

A

framework for the cell

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14
Q

centrioles

A

organizes microtubules in cell division

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15
Q

cilla

A

hair like particles

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16
Q

flagella

A

tail like, helps with movement

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17
Q

List the following in order on paper: Atom, Organelle, Tissue, Molecule, Cell

A

Atom, Molecule, Organelle, Cell, Tissue

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18
Q

What is Homeostasis?

A

a state of equilibrium achieved by self-regulation processes in the body

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19
Q

Independent Variable

A

Not changed by the other variables

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20
Q

Dependent Variable

A

Something that depends on other factors

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21
Q

What is the difference between studies and science studies?

A

Science has to test and prove theories, and regularly “corrects itself”.

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22
Q

Matter

A

Something that takes up space

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23
Q

Volume

A

the amount of space it takes up

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24
Q

mass

A

the amount of matter something has

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25
weight
measure of the force gravity has on something
26
atom
smallest unit of matter
27
element
matter that consists of only one type of atom
28
isotopes
isotopes atoms of an element that have a different # of neutron
29
Compound
matter consisting of 2 or more elements
30
Molecule
smallest unit of compound
31
Ion
an atom or molecule with an electrical charge
32
molecular form
letters and numbers to describe the atoms in a molecule
33
chemical form
describes the rearrangement of atoms during a chemical reaction
34
PH of Below 7 is
Acid
35
PH of above 7 is
Base
36
PH of 7 is
Buffer
37
Building blocks are amino acids
protein
38
Provides quick energy
Carbohydrates
39
Glucose is an example
Carbohydrates
40
Mostly non-polar hydrophobic molecules
Lipid
41
Function as Hormones, Enzymes, antibodies
Lipid
42
contain peptide bonds
Protein
43
Provide the instructions for building proteins
Nucleic Acids
44
Cholesterol is an example
Lipid
45
Polysaccharide is an example
Carbohydrates
46
Building blocks are monosaccharides
lipids
47
building blocks are nucleotides
nucleic acids
48
includes DNA, RNA, ATP
Nucleic Acids
49
Cells come from
Existing cells
50
Common features of all cells
DNA, RNA, Ribsomes, Proteins, Cytoplasm , Cell membrane
51
Cell Domains
Bacteria, Archaea, Eukarya
52
Prokaryotic Cells
Bacteria & Archaea
53
Eukaryotic Cell
Eukarya
54
These cells are very tiny, 1-5 micro meters
Bacteria & Archaea
55
Biggest Cells
Eukarya
56
Location of DNA : Nucleiod
Bacteria, Archaea
57
Location of DNA : Nucleus
Eukarya
58
Cell wall is present
Bacteria, Archaea, Plant/Fungi Eukarya
59
Cell well is absent
Animal Eukarya
60
3 Functions of the Cell Membrane?
Outer Boundary of the cell Gateway of the cell receives messages from the outside
61
4 Components of Cell membrane
Phospholipid Bilayer, Proteins, Steroids, Sugars
62
Channel Proteins
have tunnels in the 3D shape to move water & solutes
63
Carrier Proteins
Have binding site for solute
64
Enzyme proteins
catalyze biochemical reactions
65
Recognition Proteins
act as chemical flags that are recognized by immune system
66
adhesion proteins
allow cells to stick together
67
Receptor proteins
receive signal molecules
68
Tight junction
create a barrier
69
anchoring junction
firmly attach cells together
70
gap junction
allow chemical communication between cells
71
plasmodesmata
channel proteins that allow chemical communications between cells (plant cells)