Plasma membranes not only control the movement of fluids and molecules between the intra and extacellular fluid but are also involved in interactions between cells to form ___
How many different membrane junctions are their?
Which type of membranne junction is this. Protein attaches between cells that are subjected to mechanical stresses. (ex. the skin- "spot weld")
Which type of membrane junction is this. Cells are tightly fused (lipid layers adjacent cells tightly bound)
Which type of membrane junction it this. This has no leakage between cells, found in small intestine- "tightly stiched seams between cells", prevents digestive enzymes from damaging underlying tissue.
Which type of membrane junction is this. Allows communication between cells (links cytoplasm of cells together)
Which type of membrane junction is this. (ex. heart muscle- channels linking cytoplasm so cells function as a unit. Rapid intercellular communication)
The ___ is the most prominent feature of the cell
The ___ contains chromosomes which contain genes. Genes are hereditary units
Is it true that humans have between 35,000-45,000 genes?
Every cell has a nucleus except for the ___ ___ cells
Most cells have a single nucleus, but the ___ ___ cell has multiple nuclei
Where are ribosomal units formed?
This is an elaborate system of folded stacks and tubes througout the cytoplasm
This detoxifies products in the liver including alcohol and is involed in synthesis of: steroid hormones such as sex steroids and adrenal steroids
This synthesises phospholipids for maintainig cell membrane, ER, nuclear membrane, golgi apparatus, glycerides and glycogen
This is involved in the synthesis of: enzymes that function inside of itself, proteins destined for other organelles, and proteins that will be released from the cell
What are proteins syntheszed on?
Proteins pass into the ___ (opening) of the rough ER
After the proteins are synthesized from the rough ER, where do they go next?