Honors Biology Chapter 2 Section 3
Terms
undefined, object
copy deck
- The main source of energy for living things are ______.
- carbohydrates
- ___ help to carry out chemical reactions.
- proteins
- Important parts of biological membranes are ___________.
- lipids
- ____________ contains hydrogen, oxygen, nitrogen, phosphorus, and carbon.
- nucleic acids
- _____________ transport substances in and out of cells.
- proteins
- _________ are composed of amino acids.
- proteins
- sugar and starches are ________.
- carbohydrates
- ________ store and transmit hereditary information.
- nucleic acids
- lipids are made up of fatty acids and ________.
- glycerol
- glucose, galactose, and fructose are carbohydrates called __________.
- monosaccharides
- the two basic kinds of nucleic acids are ______ and ________.
- ribonucleic acid (RNA) and deoxyribonucleic acid (DNA)
- ______________ are polymers of amino acids.
- proteins
- a fatty acid with the maximum number of hydrogen atoms possible is ________.
- lipids
- No other element can form the amount and variety of molecules that carbon can form. What characteristics does carbon have that explain this characteristic?
- First, carbon atoms have 4 valence electrons. Each electron can join with an electron from another atom to form a strong covalent bond. Carbon can bond with many elements, including hydrogen, oxygen, phosphorus, sulfur and nitrogen.
- Plastics are synthetic, organic polymers. How are plastics similar to polysaccharides? How are they different?
- Polysaccharides are large macromolecules formed from monosaccharides. Polymers are monomers joined together to form a polymer.
- Carbon atoms are looking to bond to other atoms to form _______ bonds.
- covalent
- Carbon atoms can bond to what?
- other carbon atoms
- Carbon can form _____ or ____chains or form a ___.
- chains or branching chains or form a ring
- What are carbohydrates?
- class of biochemicals made of C,H, and O( carbon, hydrogen, and oxygen)good energy sources
- What is glycogen?
- an animal
- What do lipids contain?
-
C,H,O- richer ratio of carbon to hydrogen they have
fats, oil, and do not dissolve in water - What are lipids good for?
- structural components and are good for storing energy and water proof coverings
- Single bonds are _____ double bonds are ____.
- saturated and unsaturated
- Proteins are macromolecules that contain ____,_____,_____,____.
- nitrogen, carbon, hydrogen, and oxygen
- There are more than ____ kinds of amino acids.
-
20
1. 10 -12 can be made in our body
2. the remaining 8- 10 are from food - Proteins help to what?
- carry out chemical reactions, transport small molecules in and out of cells, and fight diseases
- Nucleic acids are huge ______.
- macromolecules
- Nucleic acids contain ____,___,____,___ or ___ and ___.
- C,H,O,N or DNA and RNA
- The monomer is a _____.
- nucleotide