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Metabolism Overview: Catabolism and Energy Production

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Metabolism Overview: Catabolism and Energy Production

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Questions and Answers

What is the consequence of niacin deficiency?

Diarrhea, dermatitis, dementia (correct)

Blindness

Skin lesions, blood vessel fragility, defective wound healing

Scurvy

Which vitamin is essential for the synthesis of collagen?

Vitamin C (correct)

Vitamin D

Vitamin E

Vitamin A

What is the role of vitamins D2 and D3 in the body?

Storage of calcium and phosphorus for bone strength (correct)

Activity of photoreceptors in low light conditions

Important for the synthesis of collagen

Prevent oxidative damage

Which vitamin deficiency leads to rickets?

Vitamin D Signup and view all the answers

What happens when white light or UV hits vitamin A?

The double bonds undergo reconfiguration Signup and view all the answers

Which vitamin is important to prevent oxidative damage?

Vitamin E Signup and view all the answers

What is the main difference between catabolism and anabolism?

Catabolism involves breaking down complex molecules to provide energy, while anabolism involves building up complex molecules that require an input of energy. Signup and view all the answers

What is the primary form of energy storage in catabolic pathways?

Formation of ATP Signup and view all the answers

What is the key input of energy required for anabolic reactions?

Phosphoryl group transfer potential of ATP Signup and view all the answers

Which organisms can use carbon dioxide from the atmosphere as their sole source of carbon?

Autotrophs Signup and view all the answers

What is a defining characteristic of chemolithotrophs?

They obtain energy from the oxidation of inorganic compounds. Signup and view all the answers

Which metabolic process involves converting organic nutrient molecules into smaller, simple end products?

Catabolism Signup and view all the answers