Bio

Question 1

What are living things

Answer 1

MSGREEN-Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion and Nutrition.

Question 2

Cell theory

Answer 2

-All living things are made up of cells
-All cells rise from pre existing cells
-Ogranisimis can be made up pf one or more cells
- basic unit of life

Question 3

prokaryotic

Answer 3

-Archaea, Bacteria
-Do not posses a nucleus, DNA is found free in cytoplasm in region called nucleoid
-Lack membrane bound organelles, RIBOSOMES
-Cell wall, Cell membrane, Cytoplasm. nucleoid, Plasmid, Ribosomes, capsule, flagella, pili
-Binary Fission, asexual reproduction and cell division, DNA is copied, separates

Question 4

eukaryotic

Answer 4

-posses a nucleus
-posses membrane bound organelles eg, ER, Golgi, Mito, Lysosomes
- More complex

Question 5

Organelles

Answer 5

internal compartment of a cell, held cytoplasam. All organelle membranes made up of phospholipid bilayers

Question 6

Nucleus

Answer 6

Contains DNA found in chromosomes, contains nucleoli

Question 7

ER

Answer 7

Used to transport material inside cell. Rough ER, ribs attached, proteins produced and exported out the cell. Smooth, Lipids are produced

Question 8

Ribosomes

Answer 8

Not a organelle, Not enclosed membrane but is solid, Made from protien and rRNA, protein produce. Found in cytosol and attached to ER. Found both eu and pro cells

Question 9

Golgi

Answer 9

Pancakes, Packages material for export out of cell.

Question 10

Lysomes

Answer 10

Found in animals, digestive enzyme, destroys unwanted cells

Question 11

Mitochondria

Answer 11

double membrane, have own DNA and ribosomes, source chemical energy by producing ATP

Question 12

Chloroplast

Answer 12

Double membrane bound, Contain fluid that carries out photosynthesis, have own DNA and ribosomes

Question 13

Vacuole

Answer 13

much larger in plants, Physical support, Movement od substance in and out, store water, disolves things or waste like salts, toxic substances

Question 14

Plasma Membrane

Answer 14

Outer surface of cell, Made from phosophlipid bilyers, fats mixed with eachother. controls movment in and out cell.

Question 15

Cell Wall

Answer 15

Structure

Question 16

Cytosol

Answer 16

jelly like, protects cells

Question 17

Not membrane bound

Answer 17

Ribosomes, Cell wall, cytoskelton, plasma membrane

Question 18

Photosynthesis

Answer 18

plants make energy in form of glucose by using sunlight water and co2, to make oxygen.

Question 19

Cellular Respiration

Answer 19

All cells use to release energy, food/glucose. Food called ATP, mitochondria is responsible for aerobic resperation.

Question 20

ATP

Answer 20

energy inside the cell

Question 21

Plasma membrane

Answer 21

controls movement in and out the cell, made from phospholipid bi layers, phosphate heads and fatty acid tail

Question 22

Diffusion

Answer 22

passive movement of particals from a region of high concentration to a region if low concentration, doesnt require ATP and countinous until equalibrium reached

Question 23

Crossing plasma membrane

Answer 23

simple diffusion, osmosis for water, facilitated diffusion, active transport, bulk transport

Question 24

Facilitated Diffusion

Answer 24

large molecules and ions passing down a concentration, no energy is required and it happens through channels

Question 25

Passive Transport

Answer 25

does not require ATP, moves substance across the membrane, example- diffusion

Question 26

Osmosis

Answer 26

Passive movement of water molecules, no energy required and occurs when equilibrium is reached

Question 27

Hypotonic

Answer 27

lower concentration of solutes and a higher concentration of water

Question 28

Hypertonic

Answer 28

Higher concentration of solutes and lower concentration of water than inside the cell. Water moves inside cell, cell shrinks

Question 29

Isotonic

Answer 29

Concentration is equal

Question 30

Active transport

Answer 30

movement of a substance against concentration gradient which always requires ATP