Cells-transport

Question 0

Spontaneous generation

Answer 0

False belief
Living things arise from non-living thing material today
Was believed until 19th century

Question 1

Cell Theory

Answer 1

1. Every organism is made of one or more cells
2. Cells are the smallest unit of life
3. Cells only come from preexisting cells

Question 2

Remember these names

Answer 2

Robert Hooke

Anton Van Leeuwenhoek

Question 3

Pasteur’s Swan Neck Experiment

Answer 3

One flask exposed to air- organisms fall in and grow
Not exposed- nothing happens

(Proves part 3 of cell theory)

Question 4

Eukaryotic

Answer 4

Cells have a nucleus

All multicellular organisms

Question 5

Prokaryotic

Answer 5

Cells have no nucleus

All are unicellular

Question 6

Organelles

Answer 6

Cell parts “organs”

Question 7

Phospholipid

Answer 7

Hydrophilic head & hydrophobic head

Question 8

Phospholipid bilayer

Answer 8

2 layer sheet of phospholipids
Hydrophilic outside
Hydrophobic inside (selectively permeable)

Question 9

Fluid mosaic

Answer 9

Membrane structure

Membrane is a mosaic of diverse protein molecules in a fluid bilayer of phospholipids

Question 10

Outside of membrane contains…

Answer 10

Carbohydrates
Connected to lipid- glycolipid
Protein- glycoproteins
Function as identification tags to distinguish outside cells

Question 11

Protein- membrane functions

Answer 11

Enzymes for molecular assembly
Receptors
Transduction

Question 12

Receptor- protein

Answer 12

receive chemical messages from other cells & binds and triggers reaction to a messenger to relay message to preform a certain task

Question 13

Transduction- proteins

Answer 13

Move large substances through membrane into cell

Question 14

Diffusion

Answer 14

Tendency for particles to move spontaneously from high to low concentration
Caused by: random motion thermal energy
Leads to equilibrium

Question 15

Passive transport

Answer 15

Diffusion of molecules across a biological membrane without any energy

Question 16

Concentration gradient

Answer 16

Difference in concentration across a space

Question 17

Equilibrium

Answer 17

When concentration of particles becomes equal in all parts of the environment

Question 18

Dynamic equilibrium

Answer 18

Overall conditions do not change
Individual parts keep moving
No net change

Question 19

Diffusion circulatory

Answer 19

Gas exchange

Question 20

Osmosis

Answer 20

Diffusion of water molecules across a selectively permeable membrane

Question 21

Hypertonic

Answer 21

Higher concentration on outside
Water moves out of the cell to obtain equilibrium
Sell shrivels up

Question 22

Hypotonic

Answer 22

Lower concentration outside
Water goes into cell and swells
Pop- Lyse

Question 23

Isotonic

Answer 23

Inside and outside have equal solution

No net movement

Question 24

osmoregulation

Answer 24

Control of water balance in hypo and hyper environments

Question 25

Plant cells

Answer 25

Iso- flaccid Hypo- turgid Hyper- shrivels

Question 26

Facilitated diffusion

Answer 26

Solute molecules that are too small get through by help of proteins

Question 27

Active transport

Answer 27

Energy is required Substances move up in concentration gradient Equilibrium is prevented

Question 28

Endocytosis

Answer 28

Process when cells take in large amounts of material by folding in the cell membrane

Question 29

Exocytosis

Answer 29

Cells excrete material by letting go of material

Question 30

Due his

Answer 30

proteins released into ECF New lipids for expanding protein Membrane proteins Communication chemical

Question 31

Pinocytosis

Answer 31

Cells take in fluids

Question 32

Phagocytosis

Answer 32

Cells take in solid particles Protists eat this way

Question 33

Phagocyte

Answer 33

Engulf foreign cells by phagocytosis

Question 34

Sodium potassium pump | 3 things

Answer 34

Sodium out- potassium in Causes cells to be negatively charged 3 Na+ go out and 2 K go in Membrane pumps things in and out- active transport