Cells, Tissues And Organelles

Question 1

What is the function of the cell membrane

Answer 1

Active transport
Barrier function
Selective diffusion

Question 2

What is the functions of a protein

Answer 2

Transportation
Enzyme activity
Recognition

Question 3

What are the 4 tissues that make organs

Answer 3

Muscle
Nervous
Epithelial
Connective

Question 4

what is the structure of a cell membrane

Answer 4

phospholipid bilayer

Question 5

what does phospholipid bilayer mean

Answer 5

made up of 2 layers of fats

Question 6

function of ribosomes

Answer 6

protein synthesis

Question 7

which organelle is embedded with ribosomes

Answer 7

rough endoplasmic reticulum

Question 8

what does the rough endoplasmic reticulum produce

Answer 8

proteins for excretion from cell and all cell membrane proteins

Question 9

function of a lyosome

Answer 9

breaks down old organelles and particles taken into the cell (bacteria)

Question 10

what are the two ways in which cells stick together

Answer 10

tight junctions and desmosomes

Question 11

what is a tight junction between cells

Answer 11

rivets made of proteins that link cell membranes of two cells next to each other to form a barrier

Question 12

what are desmosomes

Answer 12

velcro like structures that anchors cells together

Question 13

what is a gap junction

Answer 13

small holes between adjacent cells
the holes are made of a protein ring and allows diffusion of small molecules

Question 14

3 types of cells that do not stick together

Answer 14

red and white blood cells and some connective tissues eg fibroblasts

Question 15

function of muscle tissue

Answer 15

packed with proteins that allow contractions and they shorten which provides movement

Question 16

function of nervous tissue

Answer 16

fast communication, control and coordination

Question 17

function of epithelial tissue

Answer 17

lines and covers the glandular tissue and creates boundaries between the body and outside world

Question 18

function of connective tissue

Answer 18

connects body parts and provides protection

Question 19

what type of tissue is found in the intervertebral disc

Answer 19

fibrocartilage

Question 20

describe the make up of the nucleus pulposus

Answer 20

lots of ground substance, fewer cells and fibres