BIOLOGY SB1 EDEXCEL GCSE (9-1)
EXAM QUESTIONS WITH CORRECT
ANSWERS
How do you work out magnification? - ANSmultiply the magnifications of both the lenses together
What does resolution mean? - ANSthe smallest distance between 2 points that still can be seen as 2
points
Light microscopes use... - ANSlight and glass lenses to magnify an image
electron microscopes use... - ANSbeams of electrons passing through a specimen to build up an
image
SI units in order from smallest to largest - ANSpicometres, nanometres, micrometres, millimetres
Eukaryotic cells - ANScells with a nucleus
cell membrane - ANSa thin, bag like structure that controls what enters and leaves the cell and
separates one cell from another
Cytoplasm - ANSa jelly-like substance where most of the cells chemical reactions occur
Mitochondria - ANSa jelly bean like structure where aerobic respiration occurs
Nucleus - ANScontrols the cells activities and contains chromosomes
field of view - ANSthe circular area you see in a light microscope
Cell Wall - ANSmade of cellulose, and supports and protects the cell
EXAM QUESTIONS WITH CORRECT
ANSWERS
How do you work out magnification? - ANSmultiply the magnifications of both the lenses together
What does resolution mean? - ANSthe smallest distance between 2 points that still can be seen as 2
points
Light microscopes use... - ANSlight and glass lenses to magnify an image
electron microscopes use... - ANSbeams of electrons passing through a specimen to build up an
image
SI units in order from smallest to largest - ANSpicometres, nanometres, micrometres, millimetres
Eukaryotic cells - ANScells with a nucleus
cell membrane - ANSa thin, bag like structure that controls what enters and leaves the cell and
separates one cell from another
Cytoplasm - ANSa jelly-like substance where most of the cells chemical reactions occur
Mitochondria - ANSa jelly bean like structure where aerobic respiration occurs
Nucleus - ANScontrols the cells activities and contains chromosomes
field of view - ANSthe circular area you see in a light microscope
Cell Wall - ANSmade of cellulose, and supports and protects the cell
