Rank the Following in Order of Increasing PKa (From Lowest

question 7

Multiple Choice

Rank the following in order of increasing pKa (from lowest to highest pKa)

• A) 1 < 2 < 3
• B) 3 < 2 < 1
• C) 2 < 1 < 3
• D) 3 < 1 < 2
• E) 2 < 3 < 1

---

Definitions:

Heterotrophs

Organisms that cannot synthesize their own food and rely on other organisms — both plants and animals — for nutrition.

Trophic Levels

Refers to the hierarchical levels in an ecosystem, categorized by how energy is obtained, ranging from producers to primary consumers and up to apex predators.

Carnivore

An animal that mainly feeds on other animals; a mammal belonging to order Carnivora (e.g., wolves or seals).

Photosynthetic Organisms

Organisms capable of photosynthesis, a process that converts light energy into chemical energy, sustaining the food chain.