Cells
Metabolism
Mitosis/ Meiosis
Histology
Misc
100
Why are cells small?
To increase surface area to volume ration.
100
What is the equation for aerobic respiration using glucose
C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP
100
How many chromosomes do a haploid cell contain?
23
100
What are the 4 primary tissue types?
Epithelial Connective Nervous Muscular
100
What is the glycocalyx used for?
Cell identification, protection, immunity to infection, transplant compatibility, cell adhesion, fertilization, embryo development.
200
All cells have _____, _____, and _____.
What are cell membranes, DNA storage region, and cytoplasm.
200
Where does aerobic respiration end?
The cristae of the mitochondria.
200
What are 3 processes we use to ensure genetic diversity?
Cross over Random assortment Chance combination
200
What is the matrix composed of?
Fibrous proteins Ground substance, tissue fluid, ECF, interstitial fluid, or tissue gel
200
What causes cystic fibrosis? Explain
genetic disorder where cells do not install chloride pumps in the plasma membrane. This causes a decrease in saline production. Saline is used to clear mucus from cell surface
300
What are the components of the plasma membrane?
98%- Phospholipids (75%), Cholesterol (20%), Glycolipids (5%). 2%- Proteins, (50% by weight)
300
The end products of the citric acid cycle include all of the following except: CO2 pyruvic acid. ATP. NADH. FADH2
Pyruvic Acid 6 CO2 8 NADH 2 FADH 2 ATP
300
What happens during Prophase?
Nuclear envelope disappears, chromatin begins to coil, centrioles begin to migrate to opposite poles and create spindle fibers
300
What are the 3 primary germ layers?
Ectoderm (outer)- epidermis and nervous system Endoderm (inner)- mucus membrane lining, and digestive glands Mesoderm (middle)- collagen fibers and fibroblasts, muscle, bone, and blood.
300
What can pass through the plasma membrane without needing a transport protein?
Small nonpolar & non-charged particles.
400
Define Hypotonic, Hypertonic, and Isotonic
Hypotonic- Environment has less solute than cell Hypertonic- Environment has more solute than cell Isotonic- Environment and cell has equal amounts of solute.
400
What is the final electron acceptor in cellular respiration
O2
400
What is separated in anaphase I of meiosis? Anaphase II?
Homologous pairs Sister chromatids
400
What is the difference between hyperplasia and hyptertrophy?
Hyperplasia- tissue growth through cell multiplication Hypertrophy- enlargement of preexisting cells
400
What is hydrostatic pressure? What does this affect?
The pressure that fluid exerts on the wall of a container. Filtration.
500
What is transport maximum?
The maximum amount of substance that can be transported regardless of the amount present.
500
How is ATP made during: Glycolysis Krebs Cycle Electron Transport Chain
Substrate Level Phosphorylation SLP Oxidative phosphorylation or Chemiosmosis
500
In meiosis when do cells become haploid?
Telophase I
500
What are the 3 types of cell junctions?
Tight junctions Adhesions junctions Gap junctions
500
Describe the second messenger system
Chemical first messenger binds to a surface receptor. Receptor activates G protein. G protein relays signal to adenylate cyclase which converts -----ATP to cAMP (second messenger) cAMP activates a kinase in the cytosol Kinases add phosphate groups to other cellular enzymes (activates some enzymes and inactivates others triggering physiological changes in the cell)