Friedman- 2 Chemistry comes alive - Sheet1

Question 1

Homeostasis

Answer 1

Maintaining internal stability within a system

Question 2

homeostatic control mechanism (3 components)

Answer 2

1. receptor 2. control center 3. effector

Question 3

homeostatic control mechanism (Receptor)

Answer 3

-Sensor that monitor and respond to changes in the environment, stimulus, set point (blood pressure, glucose, temperature, pH…)

Question 4

homeostatic control mechanism (control center)

Answer 4

-Analyzes information from receptor create a reponse, Nervous system or enocrine system, Output (electrical impulse & hormone)

Question 5

homeostatic control mechanism (effector)

Answer 5

-Target for the output that helps reestablish the imbalance

Question 6

Element

Answer 6

Unigue substance that can not be broken down to simpler substances

Question 7

Atom

Answer 7

Smallest unit that make up matter

Question 8

Protons

Answer 8

Positive charge (in nucleus)

Question 9

Neutrons

Answer 9

Neutral charge (in nucleus)

Question 10

Electrons

Answer 10

Negative charge (orbits nucleus)

Question 11

Molecule

Answer 11

Particles composed of two or more atoms hold together with chemical bonds

Question 12

chemical bonds (3)

Answer 12

1. Ionic Bond 2. Covalent Bond 3. Hydrogen bond

Question 13

Ionic Bonds

Answer 13

Complete gain or loss of electrons, electrons are transferred, formed by cations and anions