Predicting Products of Pristanoyl-CoA from Alpha Oxidation

The video tutorial by Kevin Tolkoff explores the biochemical process of converting chlorophyll into pristanoyl CoA and its subsequent beta oxidation. It highlights the differences in metabolism between humans and ruminant animals, focusing on the products of beta oxidation, such as acetyl CoA, propionyl CoA, and isobutyryl CoA. The tutorial emphasizes that while humans can perform these processes, they do so to a lesser extent compared to ruminant animals due to dietary differences.

What is the role of chlorophyllase in the metabolism of chlorophyll?

• It converts chlorophyll into glucose.

• It cleaves phytol from chlorophyll.

• It oxidizes chlorophyll into carbon dioxide.

• It synthesizes chlorophyll from phytol.

What is the product of alpha oxidation of phytanyl CoA?

• Isobutyryl CoA

• Prostanoid acid

• Acetyl CoA

• Propionyl CoA

During the first round of beta oxidation on pristanyl CoA, what is the main product formed?

• Isobutyryl CoA

• Propanil CoA

• Acetyl CoA

• Propionyl CoA

How many acetyl CoA molecules are produced after six rounds of beta oxidation on pristanyl CoA?

• Four

• Three

• Two

• One

Which molecule is not commonly encountered in human metabolism but is produced in the beta oxidation of pristanyl CoA?

• Isobutyryl CoA

• Acetyl CoA

• Succinyl CoA

• Propanil CoA

Why do humans not perform the process of chlorophyll metabolism to a significant extent?

• Humans lack the necessary enzymes.

• Humans primarily rely on photosynthesis.

• Humans consume less chlorophyll compared to ruminant animals.

• Humans cannot digest plant material.

What is the final product of the separate catabolic pathway of propionyl CoA?

• Prostanoid acid

• Isobutyryl CoA

• Succinyl CoA

• Acetyl CoA