Ch. 3

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Ch. 3
2010-04-15 04:21:24
Bio Test

Chapter 3
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  1. Colon function
    eliminates toxins from large instestine
  2. Liver function
    produces chemicals for digestion
  3. Gallbladder Function
    storage tank for bile
  4. pancreas functions
    breaks down proteins for digestion
  5. small intestine function
    stimulates pancreas to produce digestive enzymes
  6. What are calories?
    energy unit of food
  7. What results in weight gain?
    more cal. in than out
  8. The food you eat goes to produce what?
  9. ATP
    adenosine triposhpate
  10. What is metabolic rate?
    determines how much ATP cells make/ how much is concerted into fat
  11. What is the average resting human metabolic rate/
    70 cal per hour 1680 per day
  12. What factors affect your resting metabolic rate?
    size, muscle, age, sex, genetic factors
  13. Normal male body fat/ min
  14. Normal and Min body fat for girls
  15. What do you use to determine BMI
  16. Does BMI chart take all factors into consideration?
  17. What is obesity and what is used to classify a person as obese?
    BMI of 30 or greater
  18. Functions of carbohydrates in body
    major source of energy for the body
  19. where is starch found?
  20. where is glycogen found?
  21. What does fiber help do?
    helps control cholesterol levels
  22. Functions of proteins in the body
    contain all the essential amino acis
  23. What are essential amino acids?
    complete proteins
  24. What is the difference between a fat and an oil?
    fat=animal oil=plant
  25. Functions of lipids
    energy storage
  26. Lipid: Triglycerides (fat+oils)
    energy storage/insulation
  27. Lipid: Phospholipids
    cell membrane component
  28. Lipid: Cholesterol
    cell membrane component/sex hormones/bile
  29. Saturated fat
    Bad, no double bonded carbons
  30. Unsaturated fat
    Good, double carbon to carbon bonds exist
  31. What are vitamins
    organic molecules
  32. What do vitamins do?
    contain carbon
  33. Can your body make vitamins?
    mostly no
  34. What are fat soluble vitamins?
  35. What is the best way to keep vitamins in food
    eat raw or then steam then boil
  36. What are minerals?
    Inorganic- do not contain carbon
  37. What do minerals do?
    fluid balance, grows bones and teeth, muscle contraction, nerve impluse conduction
  38. How are processed foods different than whole foods?
    processed reduced nutritive value
  39. How do enzymes work?
    catalize and regulate metabolic reactions
  40. Substrate
    molecule being metabolized
  41. active site
    enzyme region where the substrate binds
  42. enzyme specificity
    each enzyme catalizes or workds on specific reation
  43. What does the suffix ase mean?
    the reaction they catalyze
  44. Why do some people have intolerance to lactose?
    Low on the enzyme lactase
  45. What type of food does your body always burn first?
    Available Glucose
  46. What is the function of insulin?
    trigger cells to take up glucose
  47. What is a dangerous way a person can increase metabolic rate?
  48. What is a safe way a person can increase metabolic rate?
  49. Metabolic health problems
    Diabetes, Hypertension,High cholesterol, heart attack, stroke
  50. What is the difference between type 1 and type 2 diabetes?
    Type 1 needs insulin type 2 does not and starts at an older age
  51. What is blood pressure?
    force from beating of the heart on blood vessel wall
  52. What is systolic pressure/diastolic pressure
    higher # and pressure/lower # relaxed
  53. Why does weight gain affect blood pressure
    Has to pump harder
  54. What is the difference between LDL and HDL
    LDL stores cholesterol HDL removes
  55. What is good cholesterol?
  56. What is a heart attack?
    Sudden interruption of blood supply to heart
  57. What is a stroke?
    Sudden loss of brain functions because of blocked or ruptered blood vessels