How can we help?

You can also find more resources in our Help Center.

General Science Module 12

STUDY
PLAY
Decomposers
fungi and bacteria that break complex organic material into smaller molecules.
Hydrothermal Vents
fissures in the seafloor where molten rock superheats water; Seawater percolates through cracks and is heated to about 350 degrees Celsius
Combustion
requires oxygen and produces water, energy, and carbon-dioxide.
Fats
saturated and unsaturated. Essential to the body. Second macro-nutrient burned.
Macro-nutrients
carbohydrates, fats, and proteins. They provide energy to the body.
Proteins
the last macro-nutrient burned. Comes from meat. Formed from long chains of amino acids. Effects every chemical reaction in the body.
Essential Amino Acids
nine amino acids that cells cannot manufacture. Must eat proteins such as milk, meat, fish, and eggs.
DNA
has information to tell the cells how to make proteins.
Ectothermic
cold blooded animals: dont have control over internal temperature. Needs less food/ energy.
BMR
basil metabolic rate. Rate at which your body burns energy to perform minimum functions.
Metabolic Rate
two factors; 1. BMR 2. the amount of activity you engage in every day.
Higher BMR
endothermic animals. takes a lot of energy to maintain in constant internal temp.
Lower BMR
Ectothermic animals. internal temp varies.
Mitochondrian
power house of the cell, cell organelle that releases energy from stored food molecules
Kreb Cycle
produces carbon-dioxide and hydrogen when oxygen and glucose are combined.
Electron Transport System
third step of the combustion process. oxygen combines with hydrogen to make water. Large energy release.