B1.1.1 Plant and Animal cells

Question 1

Eukaryotic Cells

Answer 1

contain genetic material in the nucleus
relatively large and complex
plant and animal cells are eukaryotic cells

Question 2

Prokaryotic Cells

Answer 2

do not contain a nucleus
simple
smaller than eukaryotic cells
bacterial cells are prokaryotic cells

Question 3

What do Eukaryotic Cells contain?

Answer 3

nucleus
cytoplasm
cell membrane
mitochondria

Question 4

Role of nucleus?

Answer 4

controls activity of cell
contains organism’s genetic material in form of chromosomes
instruction to make new cells/new organisms
determines function and appearance of cell

Question 5

Role of cell membrane?

Answer 5

selective barrier - controls what passes into and out of cell
contains receptor molecules

Question 6

Role of mitochondria?

Answer 6

respiration occurs here
special protein molecules (enzymes) enable oxygen and glucose to react together
reaction transfers vital energy to organism

Question 7

Role of cytoplasm?

Answer 7

“jellylike” substance

chemical reactions that keep cell alive happen here

Question 8

What do plant cells contain?

Answer 8

nucleus
cell membrane 
cytoplasm
mitochondria
vacuole
cell wall
chloroplasts

Question 9

Role of chloroplast?

Answer 9

contain green chlorophyll -> which transfer energy from the sun -> then used in photosynthesis
only found in green parts of plants (e.g leaf cells)

Question 10

Role of cell wall?

Answer 10

surrounds the cell
made of tough fibre called cellulose
makes wall rigid and supports cell

Question 11

Role of vacuole?

Answer 11

full of cell sap, watery solution of sugar and salts

helps keep cell rigid -> supporting plant and keeping it upright