Oxidative Phosphorylation and Photosynthesis

The video tutorial compares oxidative phosphorylation in mitochondria with photosynthesis in chloroplasts, focusing on ATP synthesis. Both processes involve an electron transport chain and a proton gradient to generate ATP. Key differences include the source of electrons—oxidized sugars in mitochondria and water splitting in chloroplasts—and the membranes where these processes occur. The video highlights the similarities and differences in ATP generation, electron sources, and the locations of these processes.

What is the primary focus of the comparison discussed in the video?

• The comparison between cellular respiration and fermentation

• The comparison between oxidative phosphorylation and photosynthesis

• The comparison between glycolysis and the Krebs cycle

• The comparison between light-dependent and light-independent reactions

Which organelle is involved in oxidative phosphorylation?

• Chloroplast

• Ribosome

• Nucleus

• Mitochondria

What is the role of cristae in mitochondria?

• To synthesize lipids

• To store genetic material

• To maximize surface area for ATP production

• To transport proteins

What common feature do oxidative phosphorylation and photosynthesis share?

• Both involve the electron transport chain

• Both produce glucose

• Both require oxygen

• Both occur in the nucleus

What is the function of ATP synthase in both mitochondria and chloroplasts?

• To break down ATP

• To transport electrons

• To generate ATP

• To synthesize proteins

What is the source of electrons in the electron transport chain of mitochondria?

• Water splitting

• Oxidized sugar

• Carbon dioxide

• NADPH

In photosynthesis, where do the electrons for the electron transport chain come from?

• ATP hydrolysis

• Oxidized sugar

• Water splitting

• Carbon fixation

Where does ATP synthesis occur in mitochondria?

• In the stroma

• In the thylakoid space

• In the mitochondrial matrix

• In the cytoplasm

In chloroplasts, where is ATP synthesized?

• In the mitochondrial matrix

• In the nucleus

• In the thylakoid space

• In the cytoplasm

What is the primary purpose of ATP generated in photosynthesis?

• To synthesize proteins

• To power cellular respiration

• To transport oxygen

• To create sugars