Question

QUESTION 1

1. A plant cell in a beaker of pure water will become ___________________.

   		Shriveled (crenated)
   		Turgid
   		Lysed
   		Plasmolyzed

4 points   

QUESTION 2

1. An animal blood cell in a beaker of high salt water will become ___________________.

   		Plasmolyzed
   		Turgid
   		Shriveled (crenated)
   		Lysed

4 points   

QUESTION 3

1. Which of the following is not true regarding facilitated diffusion?

   		It releases energy
   		It is a spontaneous process
   		It is an example of passive transport
   		Substances move across a membrane against the concentration gradient

4 points   

QUESTION 4

1. NAD⁺ is the ___________ form of the electron carrier, NADH is the ____________________ form. When NADH reaches the electron transport chain, it ____________________ complex one to become NAD⁺.   

   		Reduced oxidized, oxidizes
   		Reduced, oxidized, reduces
   		Oxidized, reduced, oxidizes
   		Oxidized, reduced, reduces

4 points   

QUESTION 5

1. How many protons are pumped from the electron transport chain for each FADH2 oxidized?

   		6
   		2
   		10
   		4

4 points   

QUESTION 6

1. How many protons are pumped from the electron transport chain for each NADH oxidized?

   		2
   		10
   		6
   		4

4 points   

QUESTION 7

1. The terminal electron acceptor during aerobic cellular respiration is __________________________.

   		O2
   		NAD+
   		Pyruvate
   		H2O

4 points   

QUESTION 8

1. If a cell has more concentration of solutes inside than outside, it is in a(n) __________ environment.

   		Mesotonic
   		Isotonic
   		Hypertonic
   		Hypotonic

4 points   

QUESTION 9

1. The terminal electron acceptor during lactic acid fermentation is __________________________. (i.e. where do the electrons end up during lactic acid fermentation).

   		O2
   		Pyruvate
   		NAD+
   		H2O

4 points   

QUESTION 10

1. If a cell has less concentration of solutes inside than outside, it is in a(n) ___________ environment.

   		Hypertonic
   		Isotonic
   		Hypotonic
   		Mesotonic

4 points   

QUESTION 11

1. If a cell is in a isotonic state (environment), the cell _______________________.  

   		Loses water
   		Has no net change in water concentration
   		Converts the water to salt
   		Gains water

4 points   

QUESTION 12

1. FADH₂ is the ___________ form of the electron carrier, FAD is the ____________________ form. When FADH₂ reaches the electron transport chain, it ____________________ complex two to become FAD.  

   		Oxidized, reduced, reduces
   		Oxidized, reduced, oxidizes
   		Reduced, oxidized, oxidizes
   		Reduced, oxidized, reduces

4 points   

QUESTION 13

1. If a cell in in a hypotonic state (environment), the cell _______________________.   

   		Gains water
   		Has no net change in water
   		Loses water
   		Converts the water into salt

4 points   

QUESTION 14

1. Which of the following would have the lowest (most negative) standard reduction potential (E’0)?

   		NADH
   		Glucose
   		FADH2
   		O2

4 points   

QUESTION 15

1. Which of the following is not a product of cellular respiration?

   		Glucose
   		H2O
   		CO2
   		ATP

4 points   

QUESTION 16

1. The limiting factor that must be replenished during fermentation is __________________________.

   		H2O
   		NAD+
   		O2
   		Pyruvate

4 points   

QUESTION 17

1. How many net ATP are formed during glycolysis?

   		6
   		4
   		2
   		10

4 points   

QUESTION 18

1. How many NADH are formed by the Krebs Cycle? (per glucose)

   		4
   		10
   		6
   		2

4 points   

QUESTION 19

1. Which of the following is not a part of cellular respiration?

   		Glycolysis
   		Calvin cycle
   		Kreb's cycle
   		Oxidation of pyruvate

4 points   

QUESTION 20

1. Where is the proton concentration high in the mitochondria?

   		Matrix
   		Intermembrane space
   		Outer membrane
   		Inner membrane

4 points   

QUESTION 21

1. In the reaction Na + Cl à Na⁺ + Cl^-, which component is said to become ‘oxidized’ and which is considered reduced?

   		Na, Na
   		Cl, Cl
   		Na, Cl
   		Cl, Na

4 points   

QUESTION 22

1. If a cell is in a hypertonic state (environment), the cell _______________________.  

   		Loses water
   		Gains water
   		Converts the water to salt
   		Has no net change in water concentration

4 points   

QUESTION 23

1. Which of the following can undergo simple diffusion through a phospholipid bilayer?

   		H2O
   		K+
   		CO2
   		Glucose

Answer 1

Answer1: Turgid

Explanation 1: In pure water, there supposed to be little to no solute present. But in the plant cell, there is high solute concentration compared to pure water. So, the plant cell will take up water(solvent) to balance this gradient and will become turgid.

Answer 2: PLasmolyzed.

Explanation 2: When an animal blood cell is placed in a beaker of high saltwater it will become plasmolyzed as the medium outside(high saltwater) contains higher solute concentration than the blood cell. So the solvent inside the blood cell will pass through the semi-permeable membrane and move out of the cell to counteract gradient imbalance.

Answer 3: substances move across the membrane against the concentration gradient.

Explanation 3: Facilitated diffusion is a process of passive transport that moves the substances down a concentration gradient. It requires no energy. It can not move any substance against a concentration gradient.

Answer 4: Oxidized, Reduced, Reduces (option4)

Explanation 4: NAD+ is the oxidized form of the electron carrier NADH
When NAD+ taken one hydrogen atom, it gets reduced.
When NADH reaches the electron transport chain it reduces the complex one to become NAD+(its oxidized form) by losing a hydrogen atom.

Answer 6: 10

Answer 7: O2

Explanation 7: The transfer of electron in the electron transport chain occurs through a series of electron carriers according to their redox potential. In this series of reactions, O2 is the terminal electron acceptor for possessing the highest affinity for electron

Answer 8: Hypotonic

Explanation 8: if a cell is present in a solution where the environment has more solute than inside the cell, then it is said that the cell is in a hypotonic environment.

Answer 9: Pyruvate

Explanation 9: in the lactic acid fermentation process NADH carries the electron to Pyruvate and then in the next steps pyruvate is reduced to lactic acid and serves as the final terminal electron acceptor.

Answer 10: Hypertonic

Explanation 10: When the cellular concentration of solute is lower than the solute concentration outside. it is said that the cell is in a hypertonic environment.

Answer 11: Has no net change in water concentration.

Explanation: When the cell is in an isotonic solution then there is no net movement of solvent from either side. So there will be no net change in water concentration.

Answer 12: Reduced, Oxidized, Reduces.

Explanation: FAD is the oxidized form. it takes up hydrogen to be reduced. FADH2 reduces the complex two to be oxidized(losing hydrogen).

Answer 13: Gains water

Explanation 13: if the cell is in the hypotonic state (environment) the cell gains water because the solvent will pass into the cell as there is high solute concentration.

Answer 15: Glucose

Explanation 15: Glucose is not a product of cellular respiration instead it is one of the substrates.

Answer 17: 2

Explanation 17: two ATP is formed during Glycolysis.

Answer 19: Calvin cycle

Explanation 19: Calvin cycle is not a part of cellular respiration. It is a light-independent photosynthesis mechanism

Answer 20: Intermembrane space

Explanation 20: It is the place where the proton concentration is high in mitochondria.

Answer 21: Cl, Na

Answer 22: Loses water

Answer 23: CO2