Cellular Respiration Video Quiz

Grace, Emma, and Hannah are running a marathon. They need to keep their energy levels high. Which molecule would their cells most likely use as an energy currency during the race?

• FADH2

• ATP

• NADH

• ADP

Answer explanation

ATP is the energy currency needed by cells. It is a high-energy molecule that provides energy for cellular processes. Other choices like FADH2, NADH, and ADP are involved in energy production but ATP is the primary currency.

Tags

NGSS.HS-LS1-7

Priya is studying cell biology and observes cells under a microscope. She notes that some cells have membrane-bound organelles. Which type of cells is she observing?

• Prokaryotic cells

• Eukaryotic cells

• Bacterial cells

• Animal cells

Answer explanation

Eukaryotic cells have membrane-bound organelles, distinguishing them from prokaryotic, bacterial, and animal cells.

Ethan is studying cellular biology and wants to know where in the cell glycolysis, the process of breaking down glucose for energy, takes place. Can you help him identify the correct location?

• Cell membrane

• Cytoplasm

• Mitochondria

• Nucleus

Answer explanation

Glycolysis occurs in the cytoplasm. It is the process of breaking down glucose to produce energy. The cytoplasm is the fluid-filled region of the cell where many cellular processes take place.

Evelyn is studying cellular respiration and wants to know the net yield of glycolysis. Can you help her?

• 2 ATP and 6 NADH

• 2 FADH2 and 2 NADH

• 2 acetyl CoA and 2 NADH

• 2 pyruvate and 2 ATP

Answer explanation

The net yield of glycolysis is 2 pyruvate and 2 ATP. This is the correct choice as it represents the final products of glycolysis.

Tags

NGSS.HS-LS1-7

During a biology class, Priya explains the intermediate step of aerobic cellular respiration. What does she say happens in this step?

• Carbon dioxide is released

• Pyruvate is oxidized to acetyl CoA

• NADH is produced

• Glucose is converted to pyruvate

Answer explanation

In the intermediate step of aerobic cellular respiration, pyruvate is oxidized to acetyl CoA. This step is crucial for further energy production.

Abigail is studying cellular respiration and wants to know where the Krebs Cycle takes place. Can you help her identify the correct location?

• Cell membrane

• Nucleus

• Mitochondria

• Cytoplasm

Answer explanation

The Krebs Cycle occurs in the mitochondria, which is the correct choice. It is a vital part of cellular respiration and takes place in the inner membrane of the mitochondria.

Tags

NGSS.HS-LS1-7

Jackson, Mason, and Nora are studying for their biology exam. They are discussing the Krebs Cycle and Jackson asks, 'What is the net yield of the Krebs Cycle?'

• 2 FADH2 and 2 NADH

• 2 ATP and 6 NADH

• 2 acetyl CoA and 2 NADH

• 2 pyruvate and 2 ATP

Answer explanation

The net yield of the Krebs Cycle is 2 ATP and 6 NADH, as these are the correct products produced during the cycle.

Tags

NGSS.HS-LS1-7

Noah is learning about cellular respiration in biology class. He is curious to know, what is the final acceptor of electrons in the electron transport chain?

• Glucose

• Oxygen

• Carbon dioxide

• Water

Answer explanation

Oxygen is the final acceptor of electrons in the electron transport chain. It acts as the terminal electron acceptor, combining with electrons and protons to form water.

Tags

NGSS.HS-LS1-7

Abigail, Ava, and Charlotte are working on a science project about cellular respiration. They are discussing the role of ATP synthase in chemiosmosis. What do they conclude ATP synthase does?

• It generates a proton gradient

• It pumps protons across the intermembrane space

• It makes ATP by adding a phosphate to ADP

• It transfers electrons to protein complexes

Answer explanation

ATP synthase plays a crucial role in chemiosmosis by making ATP through the addition of a phosphate to ADP. This is the correct choice for generating ATP.

Tags

NGSS.HS-LS1-7

Evelyn is studying cellular respiration and is curious about how many molecules of ATP can be made in the electron transport chain and chemiosmosis step alone during this process. Can you help her understand the quantity?

• 26-34

• 50-60

• 30-38

• 40-50

Answer explanation

The electron transport chain and chemiosmosis step alone can produce 26-34 molecules of ATP.

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3