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6 days to the HSA! Do Now

6 days to the HSA! Do Now. Take out all 3 home assignments so I can check them. (Energy use review, crossword, and letter home) Number a sheet of paper from 1 to 12 and begin working on the practice HSA questions. Skip any BCR questions. Vitamins and Minerals.

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6 days to the HSA! Do Now

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  1. 6 days to the HSA!Do Now Take out all 3 home assignments so I can check them. (Energy use review, crossword, and letter home) Number a sheet of paper from 1 to 12 and begin working on the practice HSA questions. Skip any BCR questions.

  2. Vitamins and Minerals • Vitamins and minerals are required by the human body (and other organisms) to function properly. • A vitamin or mineral deficiency can cause disease or other disorders.

  3. Minerals • Minerals are INORGANIC substances an organism needs, for example: • Calcium for bone development • Iron for red blood cells • Zinc for DNA polymerase and other enzymes

  4. Vitamins • Vitamins are ORGANIC compounds that your body needs to grow and function properly. • The HSA may ask questions about 3 of these vitamins, though there are MANY more… • Vitamin C helps your immune system fight infections. • Vitamin D is required for bone development • Vitamin K helps your blood to clot after an injury

  5. Feedback • Feedback occurs in many biological systems, as well as lots of abiotic ones. • Feedback refers to a situation where related events have an effect on the future functioning of a system • An example…

  6. Grades = Feedback. • How it’s supposed to work: Bob studies and does homework Bob takes a test Bob gets grades

  7. Biological Feedback: insulin • Insulin is a hormone that causes cells in the body to absorb glucose in the blood and store it for later use. Bob’s liver absorbs blood glucose Bob overdoses on M&Ms Bob’s pancreas releases insulin

  8. Feedback is a control system

  9. 2009 HSA Question • This is an example of • Polarity B. feedback C. natural selection D. anaerobic respiration

  10. Energy Use Review • Photosynthesis: MUST MEMORIZE! KEY CONCEPT!!! CO2 + H2O + Light energy  C6H12O6 + O2 Happens in chloroplasts of plants. Light reactions capture light energy, store it in ATP Chlorophyll captures light Calvin Cycle builds carbohydrates from CO2.

  11. Respiration makes ATP • Respiration breaks down chemicals to make ATP energy. • Aerobic = with oxygen, anaerobic = without oxygen • Mitochondria do aerobic respiration • Aerobic respiration = photosynthesis in reverse (energy out is ATP, not light) • ATP = cell energy

  12. Practice Question Review (1-12) • #13 – 23 for homework (skip BCRs) • Begin studying!!! • Start with the review sheets we got already • Memorize 4 classes of macromolecules, their subunits, and functions • Memorize 3 vitamins from today • Memorize 7 cell parts and functions • QUIZ ON THESE 3 TOPICS TOMORROW!!!

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