Question

ASAP ASAP I NEED HELP HELPTODAY 10/15 THURSDAY I need help on for biology Chapter 2 Test Review

1. Name the subatomic particles that make up an atom. _________________________
2. What particles orbit around the nucleus of an atom? __________________________
3. What is a molecule? ______________________________________________________
4. What elements make up a water molecule? __________________________________
5. Are the chemical and physical properties of a compound normally different, or the same, from the elements that make up the compound? Give an example. ________________________________________________________________________________________________________________________________________________
6. What is the difference between an ionic bond and a covalent bond? ________________________________________________________________________
7. Which particle of an atom makes chemical bonds? What does valence mean? ________________________________________________________________________________________________________________________________________________
8. What type of ion forms when it loses an electron? When it gains an electron? ________________________________________________________________________
9. What is the difference between cohesion and adhesion? Give examples of both. ________________________________________________________________________________________________________________________________________________
10. What does “polar” mean? _________________________________________________
11. Which side of the water molecule is slightly negative, and which side is slightly positive? _______________________________________________________________
12. What is the difference between a solution and a suspension? ________________________________________________________________________________________________________________________________________________
13. What is the range of the pH scale? Which is an acid and which is a base? Give an example of both an acid and a base. ________________________________________________________________________________________________________________________________________________
14. Solutions with a high concentration of hydrogen ions are called ____________ and solutions with a high concentration of hydroxide ions are called ____________.
15. What makes carbon so special? ____________________________________________
16. What is a monomer? Give examples of monomers that form macromolecules. ________________________________________________________________________________________________________________________________________________
17. Name some important functions of proteins. ________________________________________________________________________________________________________________________________________________
18. What are the four major groups of macromolecules? ________________________________________________________________________
19. What is activation energy? ________________________________________________________________________
20. Which reaction absorbs energy, and which reaction releases energy?

21. What are enzymes? What effects an enzymes efficiency?______________________________________________________________________________________________________________________________________
22. What is a catalyst? ________________________________________________________________________
23. How do enzymes act as catalysts? ________________________________________________________________________

26. List three functions of enzymes. ________________________________________________________________________________________________________________________________________________
27. How do temperature and pH affect enzyme activity? ________________________________________________________________________________________________________________________________________________________________________________________________________________________

29. What three things make up a nucleotide? ________________________________________________________________________
30. What is the backbone of DNA made of? ________________________________________________________________________
31. What is the difference between DNA and RNA? ________________________________________________________________________
32. List and label 3 monosaccharides, 3 disaccharides, and 3 polysaccharides. ________________________________________________________________________________________________________________________________________________________________________________________________________________________

36. What type of bond connects 2 amino acids? ________________________________________________________________________

Answer 1

1. Electrons, Neutrons, and Protons
2. Electrons
3. A molecule is a group of atoms bonded together
4. Hydrogen and Oxygen
5. Yes,
   `H_2O` is an example.
   `H_2O` is made up of Hydrogen and Oxygen. Both of these elements are gases but when they come together they form a liquid.
6. An ionic bond: molecule loses or gains an electron. A covalent bond: two molecules share an electron.

Step-by-step explanation:

For Goodness sakes figure the rest out on your own!!!!

I gave you a head start ;)