Chapter 1 - Cells: The Basic Unit of Life

Question 1

Cell

Answer 1

Basic unit of life & smallest unit

Question 2

Cell membrane

Answer 2

a phospholipid layer that covers a cells surface & acts like a barrier

Question 3

Organelle

Answer 3

one of the smallest bodies in a cells cytoplasm that are specialized to perfrom a specific function

Question 4

Nucleus

Answer 4

in a (eukaryotic) cell a membrane bound organelle that contains the cells DNA

Question 5

Prokaryotes

Answer 5

single celled organisms that do not have a nucleus

Question 6

Eukaryote

Answer 6

an organism that is made up of cells that have a nucleus enclosed by a membrane

Question 7

Cell Wall

Answer 7

ridgid structure that surrounds the cell membrane (only plant)

Question 8

Cytoskeleton

Answer 8

a web of protewins in the cytoplasm

Question 9

Ribosomes

Answer 9

cell organelle composed of RNA and proteins; the site of protein synthesis.

Question 10

Endoplasmic Reticulum

Answer 10

a system of membranes that is found in a cells cytoplasm

Question 11

Mitochondrion

Answer 11

the cell organelle that is surrounded by two membranes

Question 12

Golgi Complex

Answer 12

cell organelle that helps make and package materials to be transported out of the cell

Question 13

Vesicle

Answer 13

a small cavity or sac that contains materials om a eukaryotic cell

Question 14

Lysosome

Answer 14

a cell organelle that contains digestive enzymes

Question 15

Tissue

Answer 15

a group of similar cells that perform a common function

Question 16

Organ

Answer 16

a collection of tissues that carry out a specialized function of the body

Question 17

Organ systems

Answer 17

a group of organs that work together to perform body functions

Question 18

Organism

Answer 18

a living thing; anything that can carry out life processes independently

Question 19

Structure

Answer 19

an arrangement of parts of an organism

Question 20

Function

Answer 20

the special, normal, or proper activity of an organ or part