Study Guide A+P Exam CH 1

Question 1

Organizational Table
Atoms-Organisms

Answer 1

Atom-Molecule-Macromolecule-Organelle-Cell-Tissue-Organ-Organ System-Organism

Question 2

Atom

Answer 2

Tiny particles that make up chemicals (hydrogen, carbon)

Question 3

Molecule

Answer 3

Particles consisting of atoms joined together. (Water, Glucose)

Question 4

Macromolecule

Answer 4

Large particles consisting of molecules (DNA, protein)

Question 5

Organelle

Answer 5

Functional part of a cell. (Mitochondrion, Lysosome)

Question 6

Cell

Answer 6

Basic unit of structure and functions. (Muscle, nerve, or blood cell)

Question 7

Tissue

Answer 7

Layer or mass of cells with specific function. (Adipose or epithelial tissue)

Question 8

Organ

Answer 8

Group of different tissues with a function. (heart, kidney, stomach)

Question 9

Organ System

Answer 9

Group of organs with common function. (Digestive system)

Question 10

Organism

Answer 10

Composed of interacting organ systems. (human)

Question 11

What is homeostasis?

Answer 11

The maintenance of stable internal conditions.

Question 12

Negative Feedback

Answer 12

Mechanisms that counteract changes (e.g., temperature regulation).

Question 13

Positive Feedback

Answer 13

Mechanisms that amplify changes (e.g., blood clotting).

Question 14

How can we assess variation in homeostatic balance?

Answer 14

Vital signs (temperature, heart rate, respiration rate).

Question 15

Characteristics of Life (Properties)

Answer 15

Growth, reproduction, metabolism, response to stimuli, homeostasis, cellular organization

Question 16

Characteristics of Life (Levels of organization)

Answer 16

Life begins at the cellular level