lecture 2

Question 1

cytoplasm

Answer 1

fluid inside of the cell that contains all of the arganelles

Question 2

what is the largest organelle

Answer 2

nucleus

Question 3

what is the plasmatic membrane composed of

Answer 3

phospholipids and proteins

Question 4

translation

Answer 4

RNA is used to produce proteins (happens outside the nucleus)

Question 5

transcription

Answer 5

copies the RNA inside the. nucleus

Question 6

mitochondria

Answer 6

powerhouse of the cell and produces majority of ATP’s

Question 7

lysosome

Answer 7

kills bacteria with it’s enzymes

Question 8

centriole

Answer 8

participates in cell division

Question 9

where does meiosis occur

Answer 9

only in sex cells like the testies and ovaries

Question 10

where does mitosis occur

Answer 10

in somatic cells (all over the body)

Question 11

what is the role of RNA

Answer 11

it plays a role in protein synthesis through transcription and translation

Question 12

what are the 2 types of RNA

Answer 12

mRNA (messenger) and tRNA (transfer) rRNA (ribosomal)

Question 13

what are the stages of mitosis

Answer 13

prophase
metaphase
anaphase
telophase

Question 14

what are the two types of membrane transportation

Answer 14

active and passive

Question 15

what does passive transport include

Answer 15

simple diffusion
facilitate diffusion
osmosis

Question 16

what is an example of simple diffusion

Answer 16

gas exchange, release of CO2 and the intakeof oxygen

Question 17

what is an example of facilitated diffusion

Answer 17

the entry of nutrients

Question 18

osmosis effect on cells

Answer 18

osmosis affects the fluid found in the cells

Question 19

isotonic solution

Answer 19

same concentration

Question 20

hypotonic solutions

Answer 20

cause cell swelling

Question 21

hypertonic solution

Answer 21

cause cell shrinkage

Question 22

2 types of active transportation

Answer 22

endocytosis
exocytosis

Question 23

what is cancer

Answer 23

a mutation of cells

Question 24

what are the cancer risk factors that increase the chances of cancer

Answer 24

-radiation
-chemical
-hereditary
-diet
-viruses
-physical irritation

Question 25

tissue classification

Answer 25

-epithelial
-connective
-muscle
-nervous tissue

Question 26

membrane

Answer 26

-pericardium
-pleura
-peritoneum

Question 27

connective tissue

Answer 27

1. liquid - blood
2. soft - fat
3. fibrous - ligaments & tendons
4. hard - cartilage, bones

Question 28

voluntary muscle

Answer 28

skeletal and striated

Question 29

involuntary muscle

Answer 29

smooth

Question 30

classification of epithelial tissue based on shape

Answer 30

pseudostratified epithelium
simple epithelium
stratified epithelium

Question 31

serus

Answer 31

fluid on between the double layer of membrane to decrease friction from movement of other organs

Question 32

schwan cells

Answer 32

fat that wraps around the axon to speed up electrical impulse

Question 33

what is an axon

Answer 33

a thin fiber that transmits electrical impulses from muscle and and gland cells to the brain