Cells

Question 1

what are the size and scale of cells

Answer 1

one um is 1000th of a mm or 0.001m

Question 2

what is the difference between the eukaryotic and prokaryotic cells

Answer 2

eukaryotic cells have a cell membrane containing cytoplasm and in it there is a nucleus with dna in it

prokaryotic cells do not have a nucleus and are much smaller then a eukaryotic cell.

Question 3

Name another difference between eukaryotic and prokaryotic cells

Answer 3

prokaryotic are much smaller then a eukaryotic cell and have a cell wall surrounding a cell membrane

they also have no nucleus instead a single loop of DNA

Question 4

What is inside the cell membrane

Answer 4

It has a cytoplasm but no nucleus but a single loop of DNA and have one more small ring of DNA called the plasmids

Question 5

What are the cell parts that are in both animal and plant are the ones that are only in plant

Answer 5

Both:
nucleus
cytoplasm
cell membrane
mitochondria
ribosomes

plants only:
chloroplasts
cell wall
permanent vacuole

Question 6

name the structure and the function of the nucleus

Answer 6

contains chromosomes made of DNA

dna controls cell proceses e.g growth development

Question 7

name the structure and the function of the cytoplasm

Answer 7

gel like substance mainly water proteins lipids and salts

suspends cell structures site of most cell reactions place where most cell expansion and growth occurs

Question 8

name the structure and the function of the cell membrane

Answer 8

particular permeable

controls what goes into and out of the cell

Question 9

name the structure and the function of the mitochondria

Answer 9

large internal surface area for reactions

where aerobic respiration takes place

Question 10

name the structure and the function of the ribosomes

Answer 10

very small structures

where proteins made

Question 11

name the structure and the function of the chloroplasts

Answer 11

contains chlorophyll pigment

traps light energy to carry out photosynthesis

Question 12

name the structure and the function of the cell wall

Answer 12

makes cellulose

strengthens the cell

Question 13

name the structure and the function of the permanent vacuole

Answer 13

made of membrane and filled with cell sap

stores nutrients and supports the cell

Question 14

Name 3 types of specialized plant cells and the function/ability

Answer 14

phloem/ cells transport sugars made in leaves to the rest of the plant

xylem/ cells transport water and mineral ions through the plant

root hair cell/ cells absorb water and mineral ions from soil

Question 15

Name 3 types of specialized animal cells

Answer 15

sperm/the function of sperm cells is to carry genetic material to the egg cell

muscle/the function of muscle cells is to produce movement

nerve/to carry electrial impulse around the body

Question 16

what is cell differentiation in animal cells

Answer 16

animal cells differentiate in early stage. as the cell divides they start to change and different cells develop different sub-cellular structures to be specialized

Question 17

what is cell differentiation in plant cells

Answer 17

many types of cells divide and differentiate throughout the life of a plant. They have a redion called meristems that are responsible for cell devision