Cell Biology Flashcards
What are the two cells that are Eukaryotic cells?
Animal Cell
Plant Cell
What is an example of a Prokaryotic cell?
Bacteria cell
What is an example of a Prokaryotic cell?
Bacteria cell
What’s the difference between a prokaryotic cell and eukaryotic cell?
Prokaryotic cell is much smaller in size
What does the flagellum do?
It helps them move
What does measure cells in?
Micrometers
Why is a light microscope two most popular?
Easy to use
Inexpensive
What’s the maximum magnification of a light microscope?
200mm
How does an electronic microscope work?
Shine electronic as scattered through the specimen
What’s the maximum resolution of an electronic microscope?
1nm
What’s the advantage of using an electronic microscope?
Can see smaller things
more detail as higher resolution and magnification
What’s the magnification calculation?
size of image
magnification size of real
of image object
What does the ribosome do?
Small structure that makes proteins
What does the mitochondria do?
Respiration
What is a chloroplast?
Makes the plant green
signs of photosynthesis
What’s does the vacuole contain?
Cell sap
What’s does the nucleus do?
Controls the activity of cell
What’s the cytoplasm?
site of chemical reactions in the cell
What does the cell membrane do?
control what moves in and out of cell
What is cell differentiation?
To formally different types of cells
What’s a specialised cell?
A cell that is adapted to carry out a particular function
What are chromosomes made of?
DNA
What controls the rate of chemical reaction in the cytoplasm?
Enzymes
How does the mitochondria help a sperm carry out its function?
It releases energy so it can swim
How many chromosomes are there in a human cell?
46
How many pairs of chromosomes are there?
23
What should a cell do before it divides?
Replicate the DNA
What’s a stem cell?
A stem cell is an undifferentiated cell
What are two specialised cells in a human?
Nerve cells
ciliated cell
What is diffusion?
Spreading out of particles from higher to lower concentration
What are three factors that affect the rate of diffusion?
Temperature
Difference in concentration
Surface are of the membrane
What can stem cells be used for?
To treat Diseases
What’s the name of the process which moves into cells?
osmosis
What’s the process which plant roots absorb mineral ions?
Active transport
Why does roots store starch?
Starch is an energy source
