biology-keystone u2 Word Scramble
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Question | Answer |
organic molecules | -molecule that always contains carbon and hydrogen -associated with living things |
electrons | -subatomic particle that has almost no weight and carries a negative charge -orbits in a shell about the nucleus of an atom |
covalently bonding | chemical bond between atoms that results from the sharing of a pair of electrons |
monomers | one of the similar or identical molecules of which a polymer is made |
polymers | a macromolecule made by joining many similar or identical molecules (monomers) through similar or identical bonds |
condensation (dehydration) process | -joins monomers together -forms water molecules |
hydrolysis | -polymers are broken down into monomers -uses water in the process -splitting of a covalent bond |
carbohydrates | -organic compound characterized by the presence of CH20 groups -includes monosaccharides, disaccharides, and polysaccharides -quick energy for cell |
lipids | -organic compound that is insoluble in water -notably fats, oils, and steroids -contain C, H, and a little O |
proteins | -organic compound that is composed of either one or several polypeptides -used for structure, hormones, or enzymes -contain C,H,O,N and sometimes S |
nucleic acids | -polymer of nucleotides -contain the genetic information/code of the cell |
what is a carbohydrate's monomer? | monosaccharide |
what is a lipid's monomer? | fatty acid (doesn't have on) |
what is a protein's monomer? | amino acid |
what is a nucleic acid's monomer? | nucleotide |
carbohydrates include... | polysaccharides |
polysaccharides contain... | disaccharides |
disaccharides are composed of two... | monosaccharides |
lipids include... | triglycerides |
triglycerides are composed of... | fatty acids and glycerol |
proteins are composed of... | peptides |
peptides are composed of... | amino acids |
nucleic acids include... | RNA and DNA |
RNA and DNA are composed of... | nucleotides |
high-energy compounds include... | ATP |
ATP is composed of... | nucleotides and phosphate groups |
why carbon? | -the second most abundant element in living organisms -can share four electrons, it can bond to four additional atoms -establishes covalent bonds (stable, high energy bonds) -has strength, flexibility, and can chemically react to other atoms |
which statement correctly describes how carbon's ability to form bonds makes it uniquely suited to form macromolecules? | it forms covalent bonds with other carbon atoms |
homeostasis | -living cells maintain a balance between materials entering and exiting the cell -ability to maintain the balance -it is important for a cell to control internal concentrations of water, glucose, and other nutrients, while eliminating cellular wastes |
carbohydrates |
Created by:
amandathornton
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