Week 2 Study Guide

Question 1

What makes up 95-96% of all living matter?

Answer 1

Hydrogen, nitrogen, carbon, and oxygen

Question 2

What makes up 4% of all living matter?

Answer 2

Potassium, phosphorus, calcium, and sulfur

Question 3

What kinds of trace elements are in living matter?

Answer 3

iodine, magnesium

Question 4

What’s the most important “building block” biomolecule?

Answer 4

carbon

Question 5

What are vitamins and essential amino acids?

Answer 5

Micronutrients that have to be physically consumed