Levels of Organization

1. Which of the following are atoms?

DNA

Carbon

Glucose

Hydrogen

Sodium

Lipids

2. Which of the following are molecules?

DNA

Hemoglobin

Potassium

Water

Fructose

Hydrogen

3. Which of the following are organelles?

Carbohydrate

Nucleus

Starch

Ribosomes

Mitochondria

Amino acids

4. Which of the following are tissues?

Protein

Liver

Epithelial

Connective

Nerve

Esophagus

5. Which of the following are organs?

Liver

Carbohydrate

Heart

DNA

Nucleus

Red blood cells

6. Which of the following are organ systems?

The lipid system

Digestive system

The liver system

Integumentary system

Reproductive system

The salivary system

7. Which of the following organ : system combinations are correct?

Cardiovascular: heart, blood and blood vessels.

Endocrine: hormones, pituitary gland, lymph nodes

Urinary: kidneys, arteries and urethra

Respiratory: lungs, pharynx and esophagus

Skeletal: bones, cartilage, and ligaments

Digestive: teeth, tongue, and intestines.

8. How many of the following are smaller than DNA molecules. (Remember: DNA is the largest molecules in the human body.)

A gene

A sodium ion

The nucleus of a cell

One amino acid

A nucleotide

A glucose molecule

9. How many of the following polymer : monomer combinations are correct?

Proteins: amino acids

DNA: nucleotides

Glucose: carbon

Glycogen: glucose

Water: hydrogen

Lipids: steroids

10. How many of the following are types of steroids?

Cholesterol

Testosterone

HDL

Estrogen

VLDL

LDL