Bio 1408 chapter 3

additional folding of a polypeptide, forming it into organized domains, and making the protein a working molecule

tertiary

Which of the following are true about carbohydrates?

-they are a transportable form of energy -excess carbohydrates are stored in plants in the form of starch -they consist of carbon, hydrogen, and oxygen in a 1:2:1 ratio -large carbohydrates are made from smaller carbohydrates through a condensation reaction

Proteins are made up of __ different kinds of ________, each held together by a ______ bond

20, amino acids, peptide

Carbon can share ____ electrons with other atoms

4

Of the statements below, select the one that is NOT true about ATP.

ATP is a building block for DNA

Proteins may function as

structural units hormones transport molecules enzymes

composed of one strand of nucleotides composed of two strands of nucleotides plays a role in protein building is the primary source for the genetic code

RNA DNA RNA DNA

Fatty acids have

acid group attached to a non-polar hydrocarbon chain

Three of the four statements below are true about lipids. Choose the exception

all lipids are made up of fatty acids

Which of the following are not lipids?

glucose nucleotide

The activities by which cells acquire and process energy as they contruct, rearrange and split organic molecules are collectively called

metabolism

can be altered by mutations

primary

is not affected by denaturation

primary

the unique sequence of amino acids

primary

two or more polypeptide chains bound together or associating with one another

quaternary

the initial folding of a protein chain

secondary