BIO final

Question 1

what did photosynthesis do for biological life?

Answer 1

allowed the evolution aerobic respiration in eukaryotes.

Question 2

oxygen formed

Answer 2

ozone layer which protects life

Question 3

model system

Answer 3

use one type of organism to understand others

Question 4

covalent bonds

Answer 4

share electrons

Question 5

nonpolar covalent bonds

Answer 5

share electrons equally

Question 6

polar covalent bond

Answer 6

share electrons unqually

Question 7

covalent bonds release __ energy and are ___ to break

Answer 7

-high energy
-difficult

Question 8

covalent bonds are made by

Answer 8

condensation reactions

Question 9

during condensation reaction

Answer 9

H2O is removed

Question 10

proteins are formed by ___ bonds

Answer 10

peptide bonds

Question 11

carbs are formed by ____ glycosidic bonds

Question 12

site of protein synthesis

Answer 12

ribosomes

Question 13

In ___ energy in fuel molecules such as glucose is transformed into ATP

Answer 13

mitochondria

Question 14

vesicles

Answer 14

small membrane surrounded droplets; shuttle substances

Question 15

rough ER

Answer 15

new protein enters lumen and are modified, folded, and transported

Question 16

golgi apparatus

Answer 16

receives, labels, and sends

Question 17

mitochondrial matrix

Answer 17

contains DNA and ribosomes to make proteins needed for cellular respiration.

Question 18

plastid

Answer 18

single-celled eukaryotes; plants