Bio Exam 1 Review

Question 1

what is the polarity of a molecule determined by?

Answer 1

types of covalent bonds and functional groups

Question 2

what are the charges of these:
-proton?
-neutron?
-electron?

Answer 2

-proton: positive
-neutron: neutral
-electron: negative

Question 3

If the atom of all isotopes is neutral, what do all of them have?

Answer 3

same number of electrons and protons

Question 4

what is an allele? and how many do we get?

Answer 4

the variant of a gene. 1 from each parent

Question 5

how are plants and animals similar cell wise?

Answer 5

both are multicellular organisms

Question 6

what do plants have that animals don’t?

Answer 6

-cell wall
-a vacuole
- chloroplast

Question 7

what is a cell wall composed of?

Answer 7

cellulose, hemicellulose, lignin

Question 8

what are the subcellular organisms?

Answer 8

• nucleus
• chloroplast
• mitochondria

Question 9

what does the inside of the cell membrane do?

Answer 9

it determines the function of the cell membrane

Question 10

what particles and proteins are inside a cell membrane?

Answer 10

-channel protein
-cholesterol
-integral protein
-carbohydrates
-glycoproteins
-glycolipids
-alpha helix proteins
-globular protein
-peripheral protein

Question 11

what is the mitochondria?

Answer 11

powerhouse of the cell