Chapter 4 Weak Areas

Roles of Membrane Proteins

Transport proteins, cell surface receptor, identity markers, enzymes, anchoring sites, cell-adhesion proteins

Cell eating and drinking

Phagocytosis and pinocytosis

Sugar pattern of glycoproteins/lipids on the surface, helps with cell recognition

Glycocalyx

Lysosome Features (Define too)

Autophagy - digestion of nonfunctional/worn out organelles / Autolysis - self-destruction, death

Peroxisomes

(Think detox) Digests fatty acids, amino acids, and uric acid with hydrogen peroxide (H2O2) and synthesizes some lipids (distinguishing factor between lysosomes)

Non-membrane bound organelles (except ribosomes)

Centrosome, proteasomes, and cytoskeleton

Centrosome

Spindle fibers during cell division, microtubules

Proteasomes

Dissemble damaged, misfolded, or unneeded proteins, quality control

Cytoskeleton fiber types

Cilia, flagella, microvilli

Microvilli

Found in small intestine, increases surface area for absorption/transport

S Phase

Complementary strands by DNA polymerase, resulting in 2 sister chromatids at the centromere (bc when split each will get 1)

centrosome, centromere, centrioles

Where microtubules originate / The part of the chromosome that holds the chromatid (duplicated chromosomes that becomes a chromosome after division) / Pairs of microtubular structures in the centriole, helping with centriole activity

Programmed cell death by ligand-receptor signaling

Apoptosis