An/aerobic and Photosynthesis

Question 1

brewing beer

Answer 1

anaerobic - the yeast ferments into alcohol, and the other ingredients flavor the beer. Yeast, and other fungi are added to a sugar source.

Question 2

baking of bread

Answer 2

anaerobic - the yeast ferments in the dough creating alcohol that eventually evaporates from the heat of the oven. The large amounts if gluten (protein) cause bubbles of co2 to get trapped causing the bread to rise.

Question 3

greenhouse

Answer 3

aerobic - oxygen (concentrated) in the presence of nutrients forms glucose (energy)

Question 4

crop

Answer 4

aerobic - oxygen in the presence of nutrients forms glucose

Question 5

aerobic

Answer 5

1. glucose + 6 oxygen = 38 ATP + 6 water + 6 CO2

2. c6h12o6 + 6 o2 = 6 co2 + 6 h2o +38 ATP

Question 6

importance of respiration

Answer 6

growth, active transport, cell division, synthesis of organic molecules, movement, transportation of substances in the body, contraction of muscle fibers

Question 7

anaerobic

Answer 7

1. glucose -goes into glycolysis- =lactic acid / ethonal
2. glucose = ATP + pyruvic acid = lactic acid
3. glucose = ethanol + co2

Question 8

what is lactic acid fermentation?

Answer 8

the lack of oxygen causes glucose to be broken down into pyruvic acid and only 2 ATP’s are formed

Question 9

what is oxygen debt?

Answer 9

heavy breathing after lots of exercise is to provide oxygen to convert the lactic acid to harmless compounds - the heavy breathing is said to mean they ave oxygen debt

Question 10

what is alcoholic fermentation?

Answer 10

glucose broken down into pyruvic acid, then breaks down further into ethanol and co2 and only 2 ATP’s re produced.

Question 11

comparison

Answer 11

cytoplasm and mitochondria
vs.
cytoplasm

oxygen needed
vs.
no oxygen needed

38 ATP
vs.
2 ATP

co2 and water
vs.
co2 and ethanol / lactic acid