Bio 2 Midterm Review Questions With Complete Solutions
-located in the nucleus
-neutral charge
-changes the the atomic weight without changing the identity,
isotopes Correct Answers Neutron
-located in the nucleus
-positively charged
- determines atomic number Correct Answers Proton
-located outside the nucleus
-negatively charged
-determines the charge, makes bonds Correct Answers Electron
0-Acids-weak-7(water)-weak-Bases-14 Correct Answers pH
1: 2 : 1 : 2 : 4 : 2 : 1 : 2 : 1 Correct Answers what is the
dihybrid ratio for co-dominant traits?
1:1 Correct Answers Ratio of Bb x bb
1. Amount of Enzyme- more enzymes will cause reaction to
happen faster up to a point, and then more enzymes will have no
effect
2. Amount of substrate- very similar to #1 (less substrate =
faster) but only up to a point
3. amount of co-enzyme- small molecule that changes inactive
proteins into working enzymes
4. temperature- every enzyme has an optimum temperature
5. pH- every enzyme has an optimum pH
,6. Inhibitors- molecules that fit into the active site but don't
react- gas in gas chambers at Auschwitz (Zyklon B)
7.Heavy Metals- Pb, Hg, Cd, totally change the shape of an
enzyme-denaturation Correct Answers Factors that affect
Enzymes
1. Carbon Framework
2. Covalent Bonds
3. In or from living things
4. Can be huge molecules
5. re-arrangeable Correct Answers Characteristics of Organic
Compounds
1. Channels open/ close contraction
2. Sodium pumps/ relaxation
3. Crossbridges form/ let go
4. Myosin pulls actin/ contraction
5. Actin Slides/ contraction
6. Actin slides back/ relaxation Correct Answers Protein's
ability molecules change shapeor change position
1. Exocytosis/ contraction
2. Channels Open/ Contraction
3. Channels close/ Relaxation
4. Sodium Pumps (proteins grab & swivel)/relaxation Correct
Answers Liquid nature of fluid mosaic membrane (NT)-
1. Genes work in pairs
2. gametes get 1 gene per pair
3. ratios of one pair don't affect the ratios of another
, 4. some genes cover other genes dominant and recessive
Correct Answers What are Mendel's laws of genetics
1. Impulse arrives
2. Sodium pumps turn off
3. Na+ enters the neuron
4. Neuron depolarizes
5. Synaptic Vesicles move
6. Exocytosis- neurotransmitters released
7. Neurotransmitters diffusea across the gap diffusion
8. Neurotransmitters fit into the receptor proteins- lock and key
9. *Channels open in the sarcolemma- proteins move/change
shape
10. Na+ enters the muscle
11. muscle cell depolarizes
12. Ca⁺⁺ leaves the sarcoplasmic reticulum
13.* Ca⁺⁺ causes myosin to crossbridge with actin- proteins
move and change shape
14. ATP→ADP and releases Energy
15. Myosin pulls actin
16. Filaments slide- contraction Correct Answers Steps in
Impulse → contraction
1. Na⁺ out of the neuron/ relaxation
2. Na⁺ out of the muscle/ relaxation
3. Ca⁺⁺ back to the sarcoplasmic reticulum/ contraction
4. Neurotransmitters piece back neuron/ relaxation Correct
Answers Active transport (NT)-
1. Neurotransmitter crosses gap/ contraction
2. Na⁺ back into neuron/contraction
-located in the nucleus
-neutral charge
-changes the the atomic weight without changing the identity,
isotopes Correct Answers Neutron
-located in the nucleus
-positively charged
- determines atomic number Correct Answers Proton
-located outside the nucleus
-negatively charged
-determines the charge, makes bonds Correct Answers Electron
0-Acids-weak-7(water)-weak-Bases-14 Correct Answers pH
1: 2 : 1 : 2 : 4 : 2 : 1 : 2 : 1 Correct Answers what is the
dihybrid ratio for co-dominant traits?
1:1 Correct Answers Ratio of Bb x bb
1. Amount of Enzyme- more enzymes will cause reaction to
happen faster up to a point, and then more enzymes will have no
effect
2. Amount of substrate- very similar to #1 (less substrate =
faster) but only up to a point
3. amount of co-enzyme- small molecule that changes inactive
proteins into working enzymes
4. temperature- every enzyme has an optimum temperature
5. pH- every enzyme has an optimum pH
,6. Inhibitors- molecules that fit into the active site but don't
react- gas in gas chambers at Auschwitz (Zyklon B)
7.Heavy Metals- Pb, Hg, Cd, totally change the shape of an
enzyme-denaturation Correct Answers Factors that affect
Enzymes
1. Carbon Framework
2. Covalent Bonds
3. In or from living things
4. Can be huge molecules
5. re-arrangeable Correct Answers Characteristics of Organic
Compounds
1. Channels open/ close contraction
2. Sodium pumps/ relaxation
3. Crossbridges form/ let go
4. Myosin pulls actin/ contraction
5. Actin Slides/ contraction
6. Actin slides back/ relaxation Correct Answers Protein's
ability molecules change shapeor change position
1. Exocytosis/ contraction
2. Channels Open/ Contraction
3. Channels close/ Relaxation
4. Sodium Pumps (proteins grab & swivel)/relaxation Correct
Answers Liquid nature of fluid mosaic membrane (NT)-
1. Genes work in pairs
2. gametes get 1 gene per pair
3. ratios of one pair don't affect the ratios of another
, 4. some genes cover other genes dominant and recessive
Correct Answers What are Mendel's laws of genetics
1. Impulse arrives
2. Sodium pumps turn off
3. Na+ enters the neuron
4. Neuron depolarizes
5. Synaptic Vesicles move
6. Exocytosis- neurotransmitters released
7. Neurotransmitters diffusea across the gap diffusion
8. Neurotransmitters fit into the receptor proteins- lock and key
9. *Channels open in the sarcolemma- proteins move/change
shape
10. Na+ enters the muscle
11. muscle cell depolarizes
12. Ca⁺⁺ leaves the sarcoplasmic reticulum
13.* Ca⁺⁺ causes myosin to crossbridge with actin- proteins
move and change shape
14. ATP→ADP and releases Energy
15. Myosin pulls actin
16. Filaments slide- contraction Correct Answers Steps in
Impulse → contraction
1. Na⁺ out of the neuron/ relaxation
2. Na⁺ out of the muscle/ relaxation
3. Ca⁺⁺ back to the sarcoplasmic reticulum/ contraction
4. Neurotransmitters piece back neuron/ relaxation Correct
Answers Active transport (NT)-
1. Neurotransmitter crosses gap/ contraction
2. Na⁺ back into neuron/contraction
