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ISSA: PT > Chapter 6 > Flashcards

Chapter 6 Flashcards

Energy and Metabolism

1
Q

Macronutrients

A

A type of food necessary in large quantities in the diet to support function and energy production (carbohydrates, protein, fat)

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2
Q

Metabolism

A

All of the chemical processes that occur in the body to support life including converting food into energy

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3
Q

Bioenergetics

A

The study of how energy is transformed in living organisms

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4
Q

Cells

A

The building blocks of all living organisms

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5
Q

Organelles

A

Tiny structures within cells, each with a unique function

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6
Q

Plasma Membrane

A

The cellular membrane made of lipids and proteins that forms the external boundary of the cytoplasm and regulates the passage of molecules in and out of the cytoplasm

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7
Q

Cytoplasm

A

The viscous fluid inside a living cell excluding the nucleus

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8
Q

Phospholipid Bilayer

A

The dual layer of lipids that make up the cell membrane of most human cells

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9
Q

Fatty acids

A

The smaller, absorbable building blocks of the fat that is found in the body

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10
Q

Deoxyribonucleic Acid

A

Self replicating genetic material in human cells

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11
Q

Gluconeogenesis

A

The generation of new glucose molecules from non-carbohydrate carbon substrates

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12
Q

Glycolysis

A

The breakdown of glucose by enzymes, releasing energy and pyruvic acid

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13
Q

Mitosis

A

Cell division that results in two cells identical to the original cell

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14
Q

Ribosomes

A

Small cellular organelles involved in polypeptide and protein synthesis

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15
Q

Endoplasmic Reticulum

A

A network of tubules attached to the nuclear membrane in cells

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16
Q

Rough endoplasmic reticulum

A

Endoplasmic reticulum with ribosomes attached

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17
Q

Smooth endoplasmic Reticulum

A

Endoplasmic reticulum that lacks ribosomes

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18
Q

Glycogen

A

The stored form of glucose found in muscle tissue and the liver

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19
Q

Golgi Apparatus

A

An organelle of folded membranes responsible for packaging and transporting membrane bound proteins

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20
Q

Glycoproteins

A

A class of proteins with a carbohydrate group attached

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21
Q

Lysosomes

A

An organelle filled with digestive enzymes that breaks down materials the cell has absorbed

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22
Q

Mitochondria

A

An organelle with a double membrane and many folds inside responsible for generating the chemical energy needed for biochemical reactions

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23
Q

Oxidative Phosphorylation

A

The energy producing process that occurs in mitochondria in the presence of oxygen

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24
Q

Glucose

A

A simple sugar the body uses for energy production on the cellular level

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25
Triglycerides
A chemical compound formed when three fatty acids combine with glycerol. The most abundant fat in the body
26
Respiratory Quotient
A method of determining the fuel mix being used; a way to measure the relative amounts of fats, carbohydrates, and proteins being burned for energy
27
Indirect Calorimetry
A way to measure energy expenditure by oxygen consumed and carbon dioxide produced
28
Adenosine Triphosphate
An energy carrying molecule used to fuel body processes
29
Adenosine Diphosphate
An organic compound essential to the flow of energy in living cells
30
Energy Pathways
The chemical reaction pathways that supply the body with energy on a cellular level
31
Anaerobic
Without or not requiring oxygen
32
Creatine phosphate
A high energy molecule stored in skeletal muscle, the myocardium, and the brain
33
ATP/CP Energy Pathway
The anaerobic energy system that provides rapid energy using creatine phosphate to generate ATP
34
Anaerobic Glycolysis
The anaerobic energy system converting glucose to lactate when oxygen is limited
35
Lactic Acid
The chemical by product of anaerobic glycolysis
36
Anaerobic Threshold
The point at which the body switches from aerobic metabolism to primarily anaerobic metabolism
37
Lactate Threshold
The maximum effort or intensity an individual can maintain for an extended time with minimal effect on blood lactate levels. This is the point where muscle tissue begins to make large amounts of lactate
38
Lactic Acidosis
The accumulation of excess H+ causing muscle fatigue and soreness
39
Aerobic Energy Pathways
Cellular energy pathways that require oxygen for energy production
40
Aerobic Glycolysis
The breakdown of glucose to ATP in the presence of oxygen
41
Oxidation
The chemical reaction of combing with oxygen or removing hydrogen
42
Oxidative energy pathway
An aerobic energy pathway using primarily fat and carbohydrates to produce energy
43
Krebs cycle
A series of chemical reactions inside the mitochondria that use acetyl-CoA to generate ATP and other substrates that contribute to the electron transport chain
44
Electron Transport Chain
A series of proteins in the mitochondrial membrane that transfer electrons and hydrogen ions across the membrane to generate ATP from ADP
45
Pyruvate
A metabolic intermediate molecule in several energy pathways
46
Hypoglycemia
The condition of lower than normal blood glucose
47
Steady state exercise
Exercise that maintains a steady level of exertion form start to finish
48
Excess postexercise Oxygen consumption
The amount of oxygen required to restore normal metabolic status
49
Calories
The amount of energy needed to raise the temperature to 1 kilogram of water by 1* at a pressure of 1 atmosphere
50
Energy Balance
The state achieved when energy intake is equal to energy expenditure
51
Positive energy balance
More energy is consumed than expen
52
Negative energy Balance
More energy is expended than consumed
53
Total daily energy Expenditure
The accumulated calorie burn made up of resting metabolic rate, the thermic effect of food, physical activity, and physical growth
54
Resting metabolic rate
The energy expenditure of metabolic and physical processes when the body is at rest
55
Thermic effect of food
The energy expenditure associated with food digestion and absorption
56
Daily calorie expenditure
The total number of calories an individual expends including their resting metabolic rate, activity level factor, and the thermic effect of food
57
Activity level factor (ALF)
Multipliers that reflect varying levels of activity
58
Diet-Induced Thermogenesis
The thermic effect of macronutrient digestion and absorption
59
Exercise Activity Thermogenesis
Energy expended as a result of planned, structured, and repetitive movement with the goal of improving or maintaining physical fitness
60
Non-Exercise Activity Thermogenesis
Energy expended as a result of any movement of the body that require energy. This includes all activities of daily living outside of planned and structured workouts
61
Weight Management
The physiological processes and techniques one uses to achieve or maintain a specific body weight
62
Somatotype
Categories of physical body type

ISSA: PT (8 decks)

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