Chapter 1 Flashcards

(65 cards)

1
Q

What are the 5 main limiting factors to achieving optimal health?

A
  1. Genetics
  2. Physical activity patterns
  3. Physiology
  4. Mindset/Psychology
  5. Nutrition
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2
Q

Define “Metabolic”

A

Pertaining to the chemical reactions and physiological processes necessary to ensure life

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3
Q

Define “Law of Thermodynamics”

A

Principles that govern energy exchange, including heat exchange and the performance of work

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4
Q

Define “Insulin Resistance”

A

Condition in which normal amounts of the hormone insulin are inadequate to produce normal response from fat, muscle, and liver cells

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5
Q

Define “Ergogenic”

A

Physical or mental performance-enhancing strategies

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6
Q

Define “Medical Nutrition Therapy (MNT)”

A

Nutritional advice intended to treat a variety of conditions and illnesses, the provision of which is the exclusive domain of trained and licensed nutrition professionals

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7
Q

Define “Metabolism”

A

Sum of reactions that take place to build up and break down the body

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8
Q

Define “homeostasis”

A

The body’s ability to maintain a stable and constant internal condition

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9
Q

Define “Protein”

A

Large and complex molecule consisting of amino acids (which contain nitrogen) that are essential for living cells

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10
Q

Define “Pathogen”

A

Disease-causing agent; usually bacteria, virus, or fungi

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11
Q

What is the Integumentary System?

A

Skin, hair, nails, sweat glands, and other external structures. This system protects the body from external damage.

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12
Q

What is the Skeletal System?

A

Bones, tendons, ligaments, and other structures. This system supports the body by providing a rigid structure capable of resistance and movement.

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13
Q

What is the Muscular System?

A

Skeletal muscles, cardiac muscles, and smooth muscles. These muscles are part of your arteries and veins, bladder, gastrointestinal tract, respiratory tract, and more. They produce movement, whether it’s to move you across the room, to move your blood through your vessels, or to move food through your intestines.

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14
Q

What is the Nervous System?

A

Brain as well as nervous tissues. It is responsible for electrochemical cellular communication and sends signals that trigger thought, movement, voluntary and involuntary activity

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15
Q

What is the Endocrine System?

A

Your hormonal organs and glands, including the hypothalamus, pineal gland, pituitary gland, thyroid gland, liver, pancreas, kidney, adrenal gland, testes, ovaries, and more. This system is responsible for chemical cellular communication within the body

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16
Q

What is the circulatory system?

A

Heart, blood, and blood vessels. This system transports hormones, enzymes, nutrients, and other chemicals throughout the body

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17
Q

What is the immune system?

A

Thymus, lymph nodes, spleen, tonsils, and other similar organs. This system protects against pathogens, tumor cells, and other foreign invaders

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18
Q

What is the respiratory system?

A

Nasal cavity, trachea, lungs, and other airways and has exchange organs. This system excretes carbon dioxide and brings in oxygen

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19
Q

What is the digestive system?

A

Oral cavity, esophagus, stomach, intestines, and the organs associated with digestion including liver, gallbladder, pancreas, etc. this system breaks down and absorbs nutrients from food and drink

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20
Q

What is the urinary system?

A

Kidneys, ureters, bladder, urethra, and related organs and glands. This system produces, stores, and eliminates urine

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21
Q

What is the reproductive system?

A

Sex organs and glands. This system is responsible for human reproduction

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22
Q

Define “epithelial tissue”

A

Tissue composed of cellular layers that protect outer surfaces of the human body such as skin, mucosa, and intestinal lining

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23
Q

Define “organelle”

A

Component of the cell that is responsible for a specific task

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24
Q

Define “cytoplasm”

A

Fluid medium inside of the cell, but outside of the nucleus, that surrounds organelles

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25
Define "phytochemical"
Chemical substance obtained from plants that is biologically active but non-nutritive
26
Define "co-factor"
Non-protein compound that interacts with another substance to facilitate a transformation
27
Define "hormones"
Compound created by one cell that travels to and stimulates another cell
28
Define"genetic polymorphism"
Variation in the form of one or a sequence of genes
29
Define "DNA"
Nucleic acids that contain instructions for heredity
30
Define "nutrigenomics"
Study of how genes respond to nutritional intake
31
Define "gene"
Particular sequence in DNA or RNA that controls the expression of a protein, and by extension influences the characteristics of an organism
32
Define "nucleus"
Organelle where genetic material is housed
33
Define "Plasma Membrane"
Lipid bilayer that is permeable to certain compounds that contains the cell
34
Define "lipid"
Organic substance that is insoluble in water; provides structure, storage, and messenger functions in the body
35
Define "cholesterol"
Lipid sterol contained in the body's cells and fluids that acts as a precursor to hormones and bodily structures
36
Define "phospholipids"
Type of lipid with a hydrophilic phosphate group "head" and hydrophobic fatty acid "tail" that forms cell membranes
37
Define "cytosol"
Internal fluid portion of the cell
38
Define "mitochondria"
Organelles that supply the cells' energy/ATP
39
Define "oxidize"
To combine with oxygen
40
Define "Adenosine Triphosphate (ATP)"
Adenosine molecule with three phosphate groups that supplies energy for the cell
41
Define "Cristae"
Internal compartments of the mitochondria
42
Define "reactive oxygen species (ROS)"
Various substances formed as a byproduct of metabolism that are highly reactive due to the unpaired electron shell
43
Define "Free radical"
Reactive atom with one or more electrons
44
Define "chromosomes"
Organized structure of DNA, found within cells, that contains the genes of an organism
45
Define "transcription"
Construction of mRNA from a DNA molecule
46
Define "translation"
Forming a protein molecule based on the information contained in the mRNA
47
Define "endoplasmic reticulum"
Cytoplasmic membrane that translates proteins
48
Define "golgi apparatus"
Cytoplasmic organelle necessary for the modification and transport of proteins
49
Define "ribosome"
A complex rich in RNA and protein found in cells
50
Define "glycoproteins"
Protein that contains a carbohydrate group, involved in membrane integrity
51
Define "ribonucleic acids (RNA)"
Various nucleic acids on a single strand containing ribose and uracil, necessary for the control of cell activities
52
Define "cisternae"
Flattened membrane disc of Golgi apparatus
53
Define "vesicle"
Fluid filled pouch/sac that can transport and store compounds
54
Define "Lysosome"
Organelle containing hydrolytic enzymes
55
Define "peroxisome"
Cytoplasmic organelle with enzymes that help with the breakdown of fatty acids and other macromolecules
56
Define "receptor-ligand binding complex"
A complex formed between a receptor and a substance to allow for further cellular activity
57
Define "signal transduction"
Conversion of one signal to another by a cell
58
Define "second messenger"
Substance that mediates intracellular activity by relaying a signal from an extra cellular molecule
59
Define "ligand"
Any substance that binds specifically and reversible to another chemical entity to form a larger complex
60
Define "Transport protein"
Protein that moves compounds across a membrane
61
Define "facilitated diffusion"
Transport that requires a carrier molecule; occurs when diffusion of a substance on its own is not possible
62
Define "active transport"
Movement of particles from an area of low concentration to an area of high concentration; requires energy and enzymes
63
Define "substrate"
Substance acted upon by an enzyme
64
Define "co-enzyme"
Non-protein compound that forms the active portion of an enzyme system
65
Define "catalyze"
Initiate or increase the rate of chemical reaction