any substance that cannot be broken down into simpler substances
element
most chemical reactions cannot happen without
water
meat, eggs, fish, nuts, and beans
carbohydrates make up the cell _______ and _______
wall and membrane
what does DNA stand for
deoxyribonucleic acid
when two or more elements chemically combine
compound
an example of a chemical compound is
carbon dioxide
a hibernating bear lives on ____________ that they store in fat
energy
what is produced during the food making progress
sugar
instructions that cells need to carry out all functions of life:
nucleic acid
most compounds that contain carbon are called
organic compounds
water makes up ______ of your body
2/3
How many amino acids are there:
20
cells store energy in _______ for later use
lipids
Where is DNA found:
chromatin and nucleus
what speeds up chemical reactions
enzymes
Name two organic compounds in living things:
Proteins, Lipids, Carbohydrates, and Nucleic Acid
carbohydrates and liquids are made of:
carbon, hydrogen, oxygen
what do enzymes do for digestion?
speed it up by breaking down starch into sugar
Where is RNA found:
cytoplasm and nucleus
which has MORE energy; carbohydrates or lipids?
Lipids
a birds feathers are mostly made up of
protein
two foods that contain starch
bread and potatoes
what does RNA stand for
Ribonucleic Acid
name two things that pass through the cell membrane
oxygen, molecules, food, and waste