unit 3

Question 1

cell

Answer 1

basic unit of living organisms

Question 2

prokaryotic

Answer 2

cells that do NOT have membrane bound organelles 9 (before nucleus)

Question 3

eukaryotic

Answer 3

cells that DO contain membrane bound organelles (has a nucleus)

Question 4

Anton Von Leewenhoek

Answer 4

microscope

Question 5

Schleiden and Schwann

Answer 5

cell theory

Question 6

cell theory (3 parts)

Answer 6

~all organisms are composed of one or more cells
~the cell is the basic unit of structure and organization of organisms
~all cells come from preexisting cells

Question 7

light microscope

Answer 7

uses a series of lenses to magnify objects (1500x)

Question 8

electron microscope

Answer 8

uses a beam of electrons instead of light

Question 9

ribosomes

Answer 9

site of protein synthesis, made up of RNA

Question 10

golgi apparatus

Answer 10

folded membranes that store and transport enzymes macromolecules and hormones out of the cell, produces cell wall in plant cells,

Question 11

cytoplasm

Answer 11

jellylike material surrounding nucleus

Question 12

nucleus

Answer 12

the control center of the cell, where DNA is found

Question 13

nucleolus

Answer 13

site of ribosome synthesis inside the nucleus

Question 14

nuclear membrane

Answer 14

surrounds the nucleus and holds it together

Question 15

cell membrane

Answer 15

membranes surrounding the organelles and cytoplasm of the cell, controls entry into and out of the cell

Question 16

mitochondria

Answer 16

the site of cellular respiration or energy production, membrane bound, powerhouse of the cell

Question 17

rough endoplasmic reticulum

Answer 17

forms a link between the nuclear membrane and the cell, ribosomes are attached to the surface, proteins are synthesized in the ribosomes and enclosed in vessels and sent to the golgi

Question 18

vacuole

Answer 18

site that stores glucose, water, salts and toxic substances, larger in plant cells, acts like a pntry

Question 19

cell wall

Answer 19

plant, fungi, and bacteria have a cell wall that is used for support, shaping, and protection, its composed of cellulose,

Question 20

chloroplast

Answer 20

site of photosynthesis in the plant and algae cell, generally lens shaped and bound by a double membrane

Question 21

smooth endoplasmic reticulum

Answer 21

it forms a link between the nuclear membrane and the cell, site of many metabolic reactions and synthesis of phospholipids and fatty acids

Question 22

lysosome

Answer 22

contains enzymes needed for digesting foods, viruses, bacteria, and old cells

Question 23

centrioles

Answer 23

found in animal cells, necessary for cell division/mitosis

Question 24

nuclear pore

Answer 24

holes in nuclear membrane

Question 25

DNA

Answer 25

contains code that directs all cell processes