All cells have ____, _____, and _____.
What are ribosomes, DNA, and cytoplasm.
Select the exception:
Virchow
Hooke
Galileo
Leeuwenhoek
Scheilden
Schwann
Galileo
This occurs when particles of a substance move from where there are many particles to where there are few particles.
What is diffusion?
Tay Sachs is____.
lipids accumulate in neurons
Functions of proteins
What is comprise traits, catalyze chemical reactions, cell to cell communication, defense systems....?
The cytoskelton_____________.
Scaffolding - made of proteins that provide structure nside the cell
The cell membrane is made of_______.
What is a phospholipid bilayer?
This cell type has no nucleus. Bacteria are the only example of this cell type.
What is a prokaryotic cell?
Extracellular matrix?
Proteins connecting adjacent cells?
These are made by the nucleolus and their function is to follow DNA instructions to make proteins. They are free-floating or may be found attached to the ER.
What are ribosomes?
Sind the surface area of a 2cm cube
SA=2cmx2cmx6=24cm^2
Why are cells smalll?
SA to volume ratio decreases as cells get larger. The cell membrane (SA) can't keep up with the workings of the organelles inside (the volume).
This organelle is found in the nucleus. It is makes ribosomal RNA
What is the nucleolus?
The two differences between plant and animal cells are:
1. Plant cells have cell walls. 2. Plant cells have chloroplasts
Find the volume of a 2cm cube.
What is 2cmx2cmx2cm=8cm^3?