BIOL 101 SI Practice Questions for Unit 1 1. Most of the chemical reactions in cells must have _________ present before they proceed. a) RNA b) salt c) enzymes d) fats e) caffeine 2. Genetic instructions are encoded in the base sequence of _________; molecules of ________ function in processes using genetic instructions to build proteins. a) DNA; DNA b) DNA; RNA c) RNA; SER d) RER; SER e) c and d 3. The overall three-dimensional shape of a polypeptide is called the a) double helix b) primary structure c) secondary structure d) tertiary structure e) quaternary structure 4. Phospholipids are a component of a) mitochondria b) nuclear envelope c) chloroplasts d) a and c e) all of the above Determine which of the flowing characteristics refer to a) a prokaryote b) a eukaryote c) both d) neither 5. ___ Reproduces asexually 6. ___ Has centrioles 7. ___ Has DNA 8. ___ Has a cell wall 9. ___ Has a plasma membrane Determine whether the following statements refer to the a) smooth endoplasmic reticulum
This is the end of the preview. Sign up
access the rest of the document.