Chapter 1

Question 1

What is the anatomy of the “naked eye” more properly known as?

Answer 1

Gross Anatomy

Question 2

What are the two kinds of microscopic anatomy and their approximate magnifications?

Answer 2

Light microscopic (up to x1000)

Electron microscopic (up to x300,000)

Question 3

What are the 6 levels of biological organization?

Answer 3

1. Chemical
2. Cellular
3. Tissues
4. Organs
5. Organ Systems
6. Organisms

Question 4

What are the 4 types of tissues in the human body?

Answer 4

1. Muscle tissue (movement)
2. Nervous Tissue (electrical current)
3. Epithelial Tissue (covering, lining, protecting)
4. Connective Tissue (protection, support)

Question 5

Homeostasis

Answer 5

A state of relative stability within the internal environment of an organism

Question 6

Negative feedback loop

Answer 6

Homeostatic feedback loop in which the response opposes or removes the signal

Ex: Insulin lowering blood sugar when it is detected to be too high.

Question 7

Positive feedback loop

Answer 7

A non-homeostatic feedback loop in which the response reinforces the stimulus until an endpoint is reached

Ex: hormonal control of uterine contraction

Question 8

What are the 6 steps of the scientific method?

Answer 8

1. Observation
2. Hypothesis
3. Experiment
4. Data Collection/Analysis
5. Conclusion