Chapter 3 (Cell Biology & Histology)

Question 1

cells are basic unit of life, all living things are composed of one or more cells, all cells come from pre-existing cells

Answer 1

Cell Theory

Question 2

contains the genetic library, DNA, brain of the cell

Answer 2

Nucleus

Question 3

RNA nad protein

Answer 3

Nucleolus

Question 4

network of membranes for chemical reactions

Answer 4

Endoplasmic Reticulum

Question 5

contains ribosomes, which maufacture all proteins

Answer 5

Rough ER

Question 6

lack ribosomes, catalyaze reactions involving lipids

Answer 6

Smooth ER

Question 7

modify, concentrate, and package the proteins and lipids made at ER

Answer 7

Golgi Apparatus

Question 8

powerhouse of the cell

Answer 8

Mitchondria

Question 9

site of protein synthesis

Answer 9

Ribosomes

Question 10

contain digestive enzymes, breakdown unwanted particles

Answer 10

Lysosomes

Question 11

“skeleton” of the cell, supports cellular structures, generates cell movements

Answer 11

Cytoskeletons

Question 12

phospholipid bilayer, embedded proteins, regulates movement of materials in and out, selectively permeable barrier

Answer 12

Plasma/Cell membrane

Question 13

Functions as passageways for plasma membrane, marks cells as “self” or “non-self”, cytoskeletal anchors

Answer 13

Protein

Question 14

prevent movement or substances between cells

Answer 14

Tight junctions

Question 15

allow ions to pass from cell to cell for communications

Answer 15

Gap Junctions

Question 16

hold cells in tissues together

Answer 16

Desmosomes

Question 17

no energy, passive diffusion through a protein door

Answer 17

Facilitated transport

Question 18

requires energy, agains the concentration gradient

Answer 18

Active transport

Question 19

bringing things into a cell by vesicle

Answer 19

Endocytosis

Question 20

cell drinking

Answer 20

Pinocytosis

Question 21

cell eating

Answer 21

Phagocytosis