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Chapter 24
Metabolism
| Question | Answer |
|---|---|
| carbohydrates are derived from... | plants |
| what is the carbohydrate molecule used as fuel to produce ATP? | glucose |
| what happens to excess glucose? | converted to glycogen - stored for later use |
| complex carbohydrates are __ such as ___ | starches - bread, sugar, flour pasta |
| which type of carbohydrate digests quicker? | simple carohydrates |
| shortage of glucose can... | depress brain function |
| simple carbohydrates are ___ such as ___ | sugars - carbonated drinks, candy, fruit, icecream |
| ___ is a major energy fuel for hepatocytes & skeletal muscles, ATP synthesis, body insulation, and protective padding | trigyclerides |
| lipids help absorb... | fat-soluble vitamins |
| the healthy fatty acids are called... | omega 3 fatty acids |
| fish oil, vegetable oil (canola, soy) and walnuts are known as... | omega 3 fatty acids |
| eggs, milk, milk products are known as ___ proteins | complete |
| incomplete proteins are things like... | legumes, nuts, seeds , grains |
| in order to make a protein you must... | have all 10 amino acids |
| for optimal protein synthesis, the body must... | supply enough carb/fat calories for ATP production |
| minerals.... | work with other nutrients to ensure smooth functioning of the body |
| __ are organic compounds needed for growth & good health | vitamins |
| vitamins function as ___which... | coenzymes - act with an enzyme to accomplish a particular task |
| the only 3 vitamins that are made in the body are vitamins... | B, D & K |
| the B and C vitamins are known as... | fat-soluble vitamins |
| vitamins A, D, E and K are considered __ vitamins | water-soluble |
| vitamin A is an...which functions in... | antioxidant, visual pigment |
| vitamin E... | antioxidant - prevents damage to cell membrane |
| an antioxidant... | neutralizes damaging free radicals |
| this vitamin removes CO2 | B1 |
| which vitamin has components of FAD and FMN? | B2 |
| vitamin B3 is a component of... | NAD |
| vitamin B5 is a component of... | acetyCOA |
| this vitamin is a coenyzme in nucelic acid metabolism... | B12 |
| vitamin C is an antioxidant that functions in... | synthesis of bone and cartilage |
| what mineral(s) function in bone & teeth formation? | calcium & phosphorus |
| magnesium is a mineral used for... | ATP bioenergetics |
| this mineral functions in nerve function & water balance | potassium |
| sodium is a mineral that... | keeps water in the body |
| cholorine is a __ mineral | acid/base balance |
| the 3 trace minerals are... | iron, cobalt & iodine |
| iron is a trace mineral that... | forms hemoglobin |
| which trace mineral is a component of thyroid hormone? | iodine |
| cobalt is a component of... | B12 |
| all food carbohydrates are eventually transformed to... | glucose |
| glycogenesis is when... | extra glucose is linked together to form glycogen |
| glycogenesis occurs in the ___ when glucose levels are.. | liver & skeletal muscles - high |
| glycogenolysis is ... | breaking down glycogen to release glucose for energy |
| ___ converts fats & amino acids to glucose... | glucogeogenesis |
| glucogeogenesis occurs when.... | glucose reserves are used up - glucose levels begin to drop |
| ___ protects the body from damaging nervous system by ensuring ATP synthesis can continue | gluconeogenesis |
| lipolysis breaks down... | lipids to fatty acids & glycerol |
| ___ is how we store excess calories | lipogenesis |
| ___ converts fatty acids --> acetylcoA | beta oxidation |
| how do we get energy from fat? | krebs citric cycle |
| ketogenesis is when the liver converts.. | acetycoA --> ketone bodies |
| if you're not using carbs to make energy...what is made? | ketone bodies |
| when ketone bodies accumulate in the blood, this results in... which then leads to ___ | ketosis --> metabolic acidosis |
| when amino group is switched from an amino acid to a keto acid this is known as... | transamination |
| oxidative deamination is when.... | an amine group is removed |
| the absorptive state takes place when... | body is fed - during or after eating |
| main hormone in absorptive state... | insulin |
| main hormone in post-absorptive state... | glucagon |
| this state is known as the fasting state when body is running off of stored supplies... | post-absorptive state |
| known as the good cholesterol... | HDL - removes cholesterol from the tissues |
| LDL is known as the ___ cholesterol, which... | bad - delivers cholesterol to the tissues |
| you gain weight when your energy __ exceeds your ___ | intake - output |
| __ is a indicator in total fat deposits which tends to increase satiety | leptin |
| ___ is a hormone that tells your stomach you're hungry | ghrelin |
| energy needed to perform essential activities such as breathing | BMR |