Unit 1 - Cells, Tissues, And Organ Systems

Question 1

Cell

Answer 1

Basic unit of a living organism that can perform all the processes associated with life (Pg. 1)

Question 2

Diffusion

Answer 2

Movement of particles from an area of high concentration to areas of lower concentration (Pg. 33)

Question 3

Multicellular

Answer 3

Having or being made up of two or more cells; most plants and animals are examples (Pg. 13)

Question 4

Organ

Answer 4

Group of different types of tissues that work together to form a function (Pg. 3)

Question 5

Organelle

Answer 5

In cells that have a nucleus, small structures that work within a cell preforming specific functions for the cell (Pg. 13)

Question 6

Osmosis

Answer 6

Movement of water particles through a selectively permeable membrane from a area of higher concentration to an area of lower concentration (Pg. 34)

Question 7

Selectively Permeable

Answer 7

Allowing certain substances, but not others, to pass through; cell membranes are an example (Pg. 33)

Question 8

Organ System

Answer 8

Group of organs that work together to perform a function (Pg. 45)

Question 9

Tissue

Answer 9

Group of the same type of cells that work together to perform a specific function (Pg. 3)

Question 10

Unicellular

Answer 10

Having or being made up of only one single cell; most microscopic organisms are examples (Pg. 13)

Question 11

Cytoplasm

Answer 11

The liquid-like substance contained in the cell (Pg. 13)

Question 12

Specialized Cells

Answer 12

Cells in different parts of the body having special features that enable them to perform specific functions (Pg. 39)

Question 13

Red Blood Cells

Answer 13

Cells that can carry oxygen to all the cells of the body (Pg. 39)

Question 14

Connective Tissue

Answer 14

Tissue which supports other tissues and connects different parts of the body; includes blood, fat, bones, cartilage, and tendons (Pg. 39)

Question 15

Epithelial Tissue

Answer 15

Tissue that covers the surface of the body and the outside of organs; includes skin and the linings of passages inside the body (Pg. 39)

Question 16

Nervous Tissue

Answer 16

Tissue that carries messages to and from the brain and other parts of the body; includes brain, spinal cord, and nerves (Pg. 40)

Question 17

Muscle Tissue

Answer 17

Tissue that allows the body to move; specialized for contraction (Pg. 40)

Question 18

Interdependent

Answer 18

Depending on one another - here this refers to the concept that the body’s organ systems depend on one another to function (Pg. 43)

Question 19

Respiratory System

Answer 19

A series of organs responsible for taking in oxygen and expelling carbon dioxide.

Question 20

Digestive System

Answer 20

A group of organs working together to convert food into energy and basic nutrients to feed the entire body.

Question 21

Nervous System

Answer 21

A complex network of nerves and cells that carry messages to and from the brain and spinal cord to various parts of the body.

Question 22

Excretory System

Answer 22

The system of an organism’s body that performs the function of excretion, the bodily process of discharging wastes.

Question 23

Circulatory System

Answer 23

Is an organ system that permits blood to circulate and transport nutrients oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body.

Question 24

Heart

Answer 24

Fist-sized organ that acts as a hydraulic pump for the circulatory system; pumps blood throughout the body; has a squeezing (contracting) action followed by a relaxing action (Pg. 50)

Question 25

Arteries

Answer 25

Tube-like blood vessels that take blood away from the heart, transporting it to to other parts of the body (Pg. 50)

Question 26

Veins

Answer 26

In animals: tube-like vessels that transport blood from the organs back to the heart (Pg. 50)

Question 27

Pulse

Answer 27

Bulge in an artery caused by the entry of new blood (Pg. 50)

Question 28

Alveoli

Answer 28

Tiny air-filled sacs in the lungs surrounded by blood vessels (Pg. 61)

Question 29

Capillaries

Answer 29

Thin, hair-like vessels connecting arteries and veins; capillary tissue is only one cell thick (Pg. 62)

Question 30

Stimuli

Answer 30

A change in the environment that triggers a reaction or response (Pg. 66)

Question 31

Holistic

Answer 31

Worldview suggesting that everything is interconnected (Pg. 7)

Question 32

Reductionist

Answer 32

Breaking complex problems down into smaller parts to make it easier to study them (Pg. 7)