Biology test 1 Flashcards
Where does respiration take place?
Mitochondria
What does the nucleus do
Hold genetic info/ control what exits and enters cell
What are the benefits of a large surface area?
Absorbs more light and or water
Where does photosynthesis take place ?
In the chloroplast
What does the permanent vacuole contain?
Cell sap
Where does protein synthesis take place
In the ribosomes
What do nerves do
Carry electrical signals through the body
List some specialised animal cells
Nerves,sperm,muscles
What are some specialised plant cells
Root hair cell (absorbs water and minerals from the soil), xylem (carry water and minerals), phloem (carry glucose)
Plasmid?
Small rings of dna
Cell wall
Not made of cellulose
Cyptoplasm
semi permeable
Diffusion
Movement of particles from a high concentration to a low concentration (doesn’t require energy)
Inside a cell?
Nucleus, cytoplasm, cell wall, cell membrane, mitochondria, vacuole, ribosomes, chloroplasts
Where does anaerobic respiration take place?
Cytoplasm ( site of chemical reactions)
What does the cell wall do?
Protects and keeps shape of the cell
Vacuole
Stores starch
Similarities between animal / plant cells
Both have nucleus Cytoplasm Cell membrane Mitochondria Ribosomes
Magnification
Size of image
—————————
Size of actual object
An irregular shape radius =
Centre of disc to edge of disc x3 mean average
Antibiotic
Bacteria killer inside the body
