3.1 Cells & Tissues & Organs

Question 1

Anatomy

Answer 1

The study of the structure and relationships between body parts

Question 2

Physiology

Answer 2

The study of the functions of body parts and the body as a whole

Question 3

Cells

Answer 3

The basic unit of life, smallest structural unit of living organisms capable of performing all the function of life, contain organelles, vary in shape size and function

Question 4

functions of cells

Answer 4

respiration, nutrition, energy production, waste elimination, and reproduction

Question 5

cell membrane

Answer 5

outer covering of a cell that regulates transport in and out of the cell, porous and flexible, maintains internal cellular environment

Question 6

cytoplasm

Answer 6

clear, jelly-like substance that fills cell, surrounds organelles and nucleus, provides structure so cell doesn’t collapse

Question 7

nucleus

Answer 7

functional center of a cell, governs activity through replication of genetic material stored within

Question 8

tissue

Answer 8

a group of similar cells that perform a specialized function

Question 9

epithelial tissue

Answer 9

covers external surface (skin) and lining of body cavities (mouth, ears, nose, throat)

Question 10

connective tissue

Answer 10

provides support, stores energy, connects other tissues and parts (ex. bone, fate blood, cartilage)

Question 11

muscular tissue

Answer 11

shorts when it contracts, makes body movement possible

Question 12

nervous tissue

Answer 12

carries messages between body and brain when stimulated through electrical impulses and chemicals

Question 13

organs

Answer 13

2 or more tissues grouped together to perform a specific function

Question 14

Brain

Answer 14

An organ in the central nervous system that is the primary receiver organizer and distributor of information in the body

Question 15

Heart

Answer 15

The organ that pumps blood throughout the body

Question 16

Stomach

Answer 16

An organ that is part of the digestive system and helps digest food by mixing it with digestive juices and converting it into a liquid

Question 17

Skin

Answer 17

The largest organ of the body that serves as the body’s outer covering

Question 18

Body system

Answer 18

A group of organs that work together to carry out a specific activity

Question 19

Different systems in the body

Answer 19

Skeletal, muscular, nervous, endocrine, reproductive, urinary and excretory, respiratory, digestive, circulatory

Question 20

Living cells only come from _______

Answer 20

Other living cells