Blueprint Half Length: B/B Flashcards

1
Q

histones

A

provides structural support for chromosomes

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2
Q

histone charge

A

positive

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3
Q

DNA is —– (+/-) charge

A

negatively charged

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4
Q

histone deacetylation

A

the histones wrap the DNA more tightly, which leads to less transcription or GENE SILENCING

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5
Q

histone acetylation

A

results in gene expression

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6
Q

histone methylation

A

results in gene silencing

m = “mutes”

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7
Q

list the type of cells involved in the immune response

A
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8
Q

white blood cells include:

A
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9
Q

transfection

A

the process of deliberately introducing nucleic acids into eukaryotic cells

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10
Q

cytokines

A

small proteins that signal growth or activity of immune system cells and blood cells

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11
Q

tight junctions

A

protein complexes that form the semi-permeable connections between cells

a feature of epithelial barriers

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12
Q

ploidy

A

refers to how many copies of each chromosome a cell has

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13
Q

diploid

A

2n

two sets of chromosomes

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14
Q

golgi apparatus function

A

to modify and package proteins for transport to their eventual destinations within the cell

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15
Q

lysosome function

A

a membrane-bound cell organelle that contains digestive enzymes

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16
Q

nucleolus

A

the area inside the nucleus where ribosomes are made

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17
Q

centrioles

A

cylindrical organelles composed mainly of a protein called tubulin

help arrange the mitotic spindles during cell division

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18
Q

the suffix -ose indicates what type of molecule

A

sugars (saccharides)

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19
Q

what is the DNA backbone comprised of?

A

deoxyribose sugars connected via phosphate groups

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21
Q

what is the part of DNA that gives it its negative charge?

A

the phosphate groups of the sugar-phosphate backbone

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21
Q

acetylcholine

A

an excitatory neurotransmitter involved in voluntary muscle control, the parasympathetic nervous system, attention, and alertness

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22
Q

gas chromatography

A

separates mixtures based primarily upon differences of boiling point and polarity

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23
Q

mass spectrometry

A

used to measure the mass-to-charge ratio of molecules by breaking the molecules into smaller ion fragments

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24
Q

thin-layer chromatography

A

separates molecules based on affinity to the adsorbent layer (stationary phase) vs the eluent (mobile phase)

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25
size-exclusion chromatography
separates compounds based on their size; larger compounds exit first while smaller compounds exit later as they spend more time entering the pores of the packing
26
antigen
the part of the foreign particle the elicits an immune response in the body, especially the production of antibodies
27
antibody
part of the immune system that recognizes and binds to the antigens on foreing particles
28
sympathetic nervous system physiological responses
"fight or flight" pupil dilation, increased heart rate, vasodilation in skeletal muscle, vasoconstriction in digestiive tract and inhibition of peristalsis
29
normal physiological pH
7.4
30
bicarbonate buffer system
31
ph greate than 7 indicates ----
basic
32
netural ph is ----
7
33
ph less than 7 indicates -----
acidic
34
Le Chatelier's Principle
if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish an equilibrium ex. if we remove product, the reaction will shift to convert more reactants into product
35
which would cause acidosis (acidic blood)? | hypoventilation or hyperventilation
hypoventilation CO2 builds up in the body and is converted to [H+] (because of the bicarb buffer)
36
alkalis
a subset of bases which can be dissolved in water
37
list the lipid soluble vitamins
A, D, E, K
38
list the water soluble vitamins
B, C
39
poly-A tail
a long chain of adenine nucleotides that is added to a mRNA molecule during RNA processing to increase the stability of the molecule
40
restriction enzymes
a protein that cleaves DNA sequences at sequence-specific sites, producing DNA fragments with a known sequence at each end
41
azide
42
kinase
enzymes that add phosphates to other molecules
43
list the 5 nitrogenous bases
44
isomerase
enzymes that convert a molecule from one isomer to another
45
osmosis
the movement of water molecules across a semi-permeable membrane from high water concentration to low water concentration
46
gallbladder function
stores and secretes bile into the small intestine
47
two divisions of PNS
somatic vs autonomic | somatic = voluntary actions; autonomic = involuntary actions
48
what is the colon?
the large intestine
49
colon function
absorb water and electrolytes from the remaining waste
50
3 divisions of the small intestine
51
what type of molecule is insulin
a peptide hormone
52
what are the 3 muscle types
53
which muscle types are striated?
cardiac and skeletal muscle
54
striated muscle
a muscle tissue that features repeating functional units called sarcomeres
55
which muscle types are multinucleated?
skeletal
56
which muscles are innervated by the somatic nervous system?
skeletal muscles | somatic = voluntary
57
which muscles are under autonomic control?
cardiac, smooth | autonomic = involuntary
58
which branch of the PNS include the sympathetic and parasympathetic nervous systems?
autonomic nervous system
59
can cholesterol pass through the cell membrane via simple diffusion?
YES! it will even be embedded
60
all steroid hormones are derivtives of what molecule?
cholesterol
61
humoral immunity
the aspect of immunity that is mediated by macromolecules (as opposed to cells)
62
2 basic divisions of the immune system
innate vs adaptive
63
two divisions of the adaptive immune system
humoral & cell-mediated
64
which cells are involed in the cell-mediated immune response?
T-cells
65
which cells are involed in the humoral immune response?
B-cells
66
what are immunoglobulins?
just another word for antibodies
67
humoral meaning
relating to bodily fluids