UCE - ATP, Cellular Respiration, Fermentation

Which bond of the ATP molecule is broken in order to release energy?

• A

• B

• C

• D

Answer explanation

The bond broken in ATP to release energy is the high-energy bond between the second and third phosphate groups, which is represented as choice A. This hydrolysis reaction releases energy for cellular processes.

Tags

NGSS.HS-LS1-7

What are the parts of the ATP molecule?

• adenine, thylakoids, stroma

• stroma, grana, chlorophyll

• adenine, ribose, phosphate groups

• NADH, NAHPH, FADH

Answer explanation

The ATP molecule consists of three main parts: adenine (a nitrogenous base), ribose (a sugar), and three phosphate groups. This structure is essential for ATP's role as an energy carrier in cells.

Where is the energy stored in ATP molecules

• In the Ribose Sugar

• In the Adenine group

• In the Phosphate bonds

• In the Bank

Answer explanation

The energy in ATP molecules is stored in the phosphate bonds. When these bonds are broken, energy is released for cellular processes, making them crucial for ATP's role as an energy carrier.

Tags

NGSS.HS-LS1-7

NGSS.HS-PS1-4

Which of the following is the word equation for cellular respiration?

• glucose + oxygen ---> ATP + carbon dioxide + water

• carbon dioxide + water ---> ATP + glucose + oxygen

• glucose + water ---> ATP + carbon dioxide + oxygen

• glucose + carbon dioxide ---> ATP + oxygen + water

Answer explanation

The correct word equation for cellular respiration is 'glucose + oxygen ---> ATP + carbon dioxide + water'. This reflects the process where glucose and oxygen are converted into energy (ATP), carbon dioxide, and water.

What is cellular respiration?

• the breakdown of glucose  to release ATP

• the breakdown of glucose to release NADH

• the breakdown of glucose to release FADH

• the breakdown of glucose to release carbon

Answer explanation

Cellular respiration is primarily the breakdown of glucose to release ATP, which is the energy currency of the cell. While NADH and FADH are produced, the main goal is to generate ATP for cellular activities.

Aerobic cellular respiration uses 1 molecule of glucose to produce approximately

• 2 ATP molecules

• 4 ATP molecules

• 32-34 ATP molecules

• 36-38 ATP molecules

Answer explanation

Aerobic cellular respiration of 1 glucose molecule yields about 36-38 ATP molecules through processes like glycolysis, the Krebs cycle, and oxidative phosphorylation, making this the correct choice.

Where does cellular respiration take place?

• Mitochondria

• Cell Membrane

• Nucleus

• Ribosomes

Answer explanation

Cellular respiration primarily occurs in the mitochondria, which are known as the powerhouse of the cell. They convert nutrients into energy, making them essential for this process.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-7

Match the following

• Alcoholic fermentation.

• Results in the formation of NADH and FADH₂

• Aerobic respiration.

• Fermentation.

• Kreb's Cycle

• The third step of cellular respiration.

• Anaerobic respiration

• Rising bread dough.

• Electron transport chain

• Cellular respiration involving oxygen.

One cause of muscle soreness is

• the Krebs cycle

• glycolysis

• alcoholic fermentation

• lactic acid fermentation

Answer explanation

Lactic acid fermentation occurs during intense exercise when oxygen is low, leading to the production of lactic acid. This accumulation is a primary cause of muscle soreness, making it the correct choice.

Which process is used to produce beer and wine?

• glycolysis

• the Krebs Cycle

• lactic acid fermentation

• alcoholic fermentation

Answer explanation

Beer and wine are produced through alcoholic fermentation, a process where yeast converts sugars into alcohol and carbon dioxide. This distinguishes it from glycolysis, the Krebs Cycle, and lactic acid fermentation.