part of a cell

Question 1

what is the plasma membrane

Answer 1

Physical barrier which regulates the flow of molecules in and out of a cell, as well as intracellular signaling

Question 2

cholesterol in plasma membrane

Answer 2

helps keep the plasma membrane strong

Question 3

types of transport across the plasma membrane

Answer 3

Active transport-requires energy
Passive transport

Question 4

passive transport/types

Answer 4

diffusion- movement from high concentration to low
osmosis- movement of water

Question 5

nucleus

Answer 5

double layer membrane with the outmost membrane as the envelope.

Question 6

function of the nucleus

Answer 6

controls cellular structure
produces ribosomes
start of the protein production pathway

Question 7

cytosol

Answer 7

liquid part of the cell which contains all of the organelles and help to maintain the cell structure

Question 8

cytoskeleton

Answer 8

maintains structural integrity of the cell

Question 9

rough endoplasmic reticulum

Answer 9

covered in ribsomes and is part of the protein production pathway

Question 10

smooth endoplasmic reticulum

Answer 10

detoxifies drugs and harmful substances

Question 11

ribsomes

Answer 11

translation of mrna, part of the protein production pathway

Question 12

bound ribosomes

Answer 12

synthesis of protein bound for secretion

Question 13

free ribsomes

Answer 13

synthesis of protein for use in the cytosol

Question 14

golgi complex

Answer 14

modify and package proteins

Question 15

mitochondria

Answer 15

performs aerobic cellular respiration to produce atp

Question 16

lysosomes

Answer 16

contain digestive enzymes which can be used to kill bacteria, viruses and other non self cells

Question 17

microvilli

Answer 17

small protrusions which increase the surface area hence increasing the absorption

Question 18

stereocilia

Answer 18

moves liquids and other fluids

Question 19

cilia

Answer 19

small hair like projections which move particles

Question 20

flagella

Answer 20

similar to cilia, but is one strand which is much longer and allows the whole cell to move