Asu bio 181 stuvia Study guides, Class notes & Summaries

The association of ribosomes with _____ invaginations would support the _____ theory. - ANSWER membrane, endomembrane After a cell is pancake shaped in a cell culture dish, the order of events that occurs as a cell walks is? - ANSWER filapodia, lamellipodia, cell muscle, retraction fiber T/F It is presumed that the peroxisomes evolved in these primitive, proto-eukaryotes to remove oxygen, which was toxic to the primitive cells. - ANSWER true T/F In an extant prokaryotic cell the outer b...

The association of ribosomes with _____ invaginations would support the _____ theory. - ANSWER membrane, endomembrane After a cell is pancake shaped in a cell culture dish, the order of events that occurs as a cell walks is? - ANSWER filapodia, lamellipodia, cell muscle, retraction fiber T/F It is presumed that the peroxisomes evolved in these primitive, proto-eukaryotes to remove oxygen, which was toxic to the primitive cells. - ANSWER true T/F In an extant prokaryotic cell the outer b...

A Cell __ a. is the smallest entity studied by biologists. b. may be a distinct entity, a building block of a more complex organism, or (as seen among a few extant species) alternating between these two extreme life styles representing, perhaps, an evolutionary link between them. c. All the statements including this one are correct. d. can be composed of many types of tissues. e. is found only in plants and animals. - ANSWER Answer: b. may be a distinct entity, a building block ...

Actin Filaments are present in: - ANSWER The cell's cortex Microtubules are present in: - ANSWER The cell's interior Cytokinesis in plant and animal cells takes two forms: - ANSWER Animal: Contractile Ring Formation Plant: Phragmoplast Formation An important checkpoint regulator is at the Gap 2/M-phase transition. Here, Cyclin B and cdkl1 activate and form MPF which becomes a _____ _____ and causes DNA to condense into _____. - ANSWER Histone Kinase Chromosomes The _____ begins t...

Comparing a single-celled eukaryotic organism with a multicellular organism such as yourself identify the major difference from the list below. A. Escape from predator B. Finding a mate C. Division of Labor D. Find it's own food E. Nucleus - ANSWER C. Division of labor The paramecium swims by way of using a flagella. - ANSWER FALSE The contractile vacuole of the paramecium is possibly an evolutionary precursor of the kidney. - ANSWER TRUE The paramecium discussed in class containe...