The Main Constituent of the Martian Atmosphere Is

question 68

Multiple Choice

The main constituent of the Martian atmosphere is:

• A)hydrogen.
• B)helium.
• C)methane.
• D)carbon dioxide.
• E)nitrogen.

---

Definitions:

Cyclic Pathway

A biochemical route characterized by a series of reactions where the final product regenerates the initial reactant.

Electron Transport System

A series of complexes that transfer electrons through a membrane within mitochondria or chloroplasts to generate a gradient for ATP production.

ATP

Adenosine triphosphate, a molecule that provides energy for many processes in living cells by being converted to ADP (adenosine diphosphate).

NADPH

Nicotinamide adenine dinucleotide phosphate, a coenzyme involved in anabolic reactions, such as lipid and nucleic acid synthesis, acting as a reducing agent.