A&P 1 L 2 Flashcards

0
Q

Joining many simple sugar molecules to form larger molecules of glycogen is an example of

A

Anabolic Metabolism

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1
Q

Production of enzymes is controlled by genetic information held within molecules of

A

DNA

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2
Q

The splitting of a molecule into smaller portions by the addition of a water molecule is called

A

Hydrolysis

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3
Q

All metabolic reactions are controlled by mechanisms involving the presence of

A

Enzymes

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4
Q

Each enzyme sets only on a particular kind of substance. This substance is known as a

A

Substrate

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5
Q

What is the “active site” of an enzyme?

A

The particular region of the enzyme that temporarily combines with portions of the substrate

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6
Q

Enzymes promote specific chemical reactions within cells by lowering the __________ ___________ needed to start these reactions

A

Activation energy

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7
Q

An amylase breaks down

A

Carbohydrates

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8
Q

What is a coenzyme?

A

A small organic molecule that is needed to complete the proper shape of the active site of an enzyme molecule

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9
Q

What are the water-soluble vitamins?

A

B’s & C’s

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10
Q

What are the fat-soluble vitamins?

A

A,E, D & K

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11
Q

Nearly all enzymes are denatured at what temperature?

A

55 degrees Celsius

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12
Q

The process of burning glucose molecules in body cells is called

A

Oxidation

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13
Q

What type or types of phosphate bonds (and #s of these bonds) are found in ADP?

A

1-low energy phosphate & 1-high energy phosphate bond

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14
Q

What is the primary energy-carrying molecule within a cell

A

ATP

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15
Q

Excess glucose is stored as what in the liver and skeletal muscles

A

Glycogen

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16
Q

In the ATP Cycle, ATP is converted into ______ to release useable energy for cell metabolic processes

A

ADP

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17
Q

How many essential amino acids are there

A

8

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18
Q

The rates of metabolic pathways are determined/controlled by __________ enzymes

A

Regulatory

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19
Q

The anaerobic portion of cellular respiration is called

A

Glycolysis

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20
Q

Hydrogen atoms are released during what phase or phases of cellular respiration

A

Glycolysis & Kreb’s Cycle/Citric Acid Cycle

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21
Q

How many molecules of ATP are produced during the aerobic phase of cellular respiration

A

36

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22
Q

The Kreb’s Cycle begins when ________ is converted to citric acid

A

Acetyl coA

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23
Q

_______ is the final hydrogen electron carrier in the ETC

A

Oxygen

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24
What is the inner membrane of the mitochondria
Cristae
25
_________ are the sub-units of nucleic acids
Nucleotides
26
In nucleic acid, complementary base pairs a held together by _______ bonds
Hydrogen
27
In a nucleotide, the organic base is always joined to the _______ by a _______ bond
5-carbon sugar; covalent
28
DNA contains what 4 organic bases
A, T, C & G
29
What is complementary base of uracil in RNA?
Adenine
30
During what phase of mitosis does DNA replication occur
Interphase
31
The process by which mRNA is formed from a DNA strand is called
Transcription
32
A set of 3 nucleotides in a tRNA molecule is called a/an
Anticodon
33
A set of 3 nucleotide in a mRNA molecule is called
A codon
34
Amino acids are joined together by ______ bond
Peptide
35
DNA: GCG CAT AGC | What is the mRNA form from this strand of DNA
mRNA: CGC GUA UCG
36
mRNA: UUA CGU ACC | Determine the tRNA complimentary anticodons
AAU GCA UGG
37
Fluids of extra cellular compartments constitute approximately ______% by volume of the total body water
37%
38
_______ fluids have high concentrations of sodium, chloride & bicarbonate ions
Extracellular
39
What are the two primary ways that the movement of water and electrolytes between fluid compartments is regulated?
Hydrostatic pressure & osmotic pressure
40
Where is the thirst center located?
Hypothalamus
41
Where is the anti diuretic hormone (ADH) produced?
Hypothalamus
42
When the body's output of water exceeds the body's intake of water, a condition of
Dehydration
43
What results from increased capillary permeability accompanying an inflammation reaction?
Edema
44
The greatest lost of electrolytes occurs as the result of
Kidney function and urine formation
45
What hormone causes an increase in sodium ion rebabs option in the kidneys and where is it produced?
Aldosterone; adrenal cortex
46
Abnormal decreases in blood calcium is called
Hypocalcemia
47
Renal and respiratory mechanisms are called
Physiological buffers
48
What are the 2 major types of buffer systems in the human body?
Physiological & chemical
49
Where is the respiratory center of the brain located?
Medulla oblongata
50
What is the body's first line of defense against shifts in pH?
Chemical buffer system
51
__________ acidosis is caused by factors that produced an increase in CO2, accompanied by an increase in the concentration of carbonic acid
Respiratory
52
All chemical reactions occurring in cells that results in the use or storage of energy
Metabolism
53
A loss of H2O molecules
Dehydration synthesis
54
What are the 2 types of metabolism
Anabolic & Catabolic
55
Proteins -----> amino acids (larger to smaller)
Catabolic Metabolism
56
Addition of molecules (adding to create something bigger release energy for cell usage)
Hydrolysis
57
Lipases digests
Lipids
58
Proteases digests
Proteins
59
Enzymes deactivates at what temperature
45 degrees Celsius
60
What are differences between DNA & RNA?
DNA: contains genetic info - replicate during interphase - double helix - 5-C sugar deoxyribose - A, T, C, G RNA: takes info from DNA synthesize proteins - single stranded - 5-C sugar ribose - A, U, C, G
61
What does semi conservation replication mean?
Conserve what you got & replicate to form more
62
Mutation causing agents are called
Mutagens
63
What are the 3 protein synthesis phases?
1. Transcription -mRNA copying DNA 2. Translation- DNA to protein 3. Elongation phase
64
What are the 2 systems for homeostasis?
Nervous & endocrine
65
What are the 2 types of electrolytes?
Positive ion & negative ion
66
What are the 3 major electrolytes in our body?
Na+ K+ Ca+
67
What is produced by the parathyroid gland; produces Calcium; targets osteoclasts, nephrons & targets cells in the cell walls of small intestines?
Parathormone
68
What is the 2nd line of defense?
Physiological buffers
69
pH of the body
7.35-7.45
70
What is it called when you breathe too much CO2?
Hyperventilation
71
Water & electrolytes are
Interdependent
72
Percentages of water weight in the body
63%
73
Percentage of intracellular compartments | Water inside the cell
~63%
74
Percentage of extra cellular compartments | Water outside cell
~37%
75
Percentage of dehydration
1-2%
76
When we are dehydrated what hormone is release and where does it take out water to reserve?
ADH; urine
77
What disease can be completely fatal | Insufficient production of aldosterone
Addison's disease
78
What are the 3 types of chemical buffers?
Bicarbonate B.S sodium bicarbonate: carbonic acid (Found intracellular/extracellular fluids) not always tho Phosphate B.S phosphate compounds (Base & acids responds) Protein B.S. large protein molecules (Grab H+ out of solution....) intracellular only
79
What is the secondary Respiratoy center?
Pons
80
Respiratory acidosis (fast breathing) known as:
Hyperventilation
81
Releases too much OH-
Metabolic alkalosis
82
Releases too many H+
Metabolic acidosis
83
When you excrete more H+ ion in the urine it's known as:
Acidic
84
When you conserve H+
Basic