Cells
This type of cell has a nucleus and membrane-bound organelles.
Eukaryotic cell
This specialised cell has a tail to help it swim to the egg
Sperm Cell
The specific region of an enzyme where the substrate fits
Active Site
The equation used to calculate magnification
Magnification = Image Size ÷ Actual Size
This is the movement of particles from an area of high concentration to low concentration
Diffusion
This structure controls what enters and leaves the cell
Cell membrane
The acrosome in a sperm cell contains these, which help digest the egg membrane
Enzymes
Enzymes are described as biological catalysts because they do this
Speed up chemical reactions without being used up
This type of microscope uses light and lenses to magnify specimens
Light microscope
This process moves substances against the concentration gradient using energy from respiration
Active Transport
What type of respiration occurs in the mitochondria?
aerobic respiration
Egg cells contain a large amount of this in the cytoplasm to support early development.
Nutrients (Yolk)
Lipase enzymes break lipids down into these two products
fatty acids and glycerol
Electron microscopes produce more detailed image because they us what instead of light
electron wavelength
Diffusion occurs down this type of gradient
Concentration gradient
What pigment is present in chloroplast which absorbs light for photosynthesis?
Chlorophyll
These cells have tiny hair-like structures that move mucus and trapped pathogens out of the airways
Ciliated Epithelial Cells
Proteases break protein down into these smaller molecules
Amino Acids
A bacteria cell measure 5 micrometers. It is viewed under a microscope at x5, 000 magnification. What is the size of the image in mm.
25 mm
Why are cells with many mitochondria well adatped for active transport
Because they release more energy for active transport
What 3 organelles are present in bacteria, animal and plant cells
Cell membrane, cytoplasm, ribosomes
After fertilisation, the egg cell membrane changes to prevent this from happening
Another sperm from entering
This term describes how only one substrate shape fits an enzyme's active site
Enzyme Specificity
If an image is 50 mm long and the real object is 25 μm long. What is the magnification?
x2000
How would glucose move into the bloodstream from the small intestines, if their is a higher concentration of glucose in the bloodstream compared to the small intestines.
Active Transport