PORTAGE LEARNING BIOD 101 FINAL EXAM REVIEW QUESTIONS AND CORRECT DETAILED ANSWERS/BIOD 101 FINAL EXAM

PORTAGE LEARNING BIOD 101 FINAL EXAM REVIEW QUESTIONS AND CORRECT DETAILED ANSWERS/BIOD 101 FINAL EXAM ( ANSWERS)
As part of the cytoskeleton, what role do microtubules serve? -
ANSWER-Microtubules influence cell shape, form spindles for
chromosome separation and serve as roads for organelles to travel
What are the two main components of phospholipids? - ANSWER-(1) a
polar head group joined to (2) a non-polar tail group
Specific ions bind to __________, and when a certain concentration has
successfully attached, the confirmation of the channel changes,
allowing for ions on the outside to passively diffuse into the cell. -
ANSWER-Carrier proteins
What occurs in a dehydration reaction? - ANSWER-A water molecule is
lost from the reactant side
What type of passive transport relies on the tendency of salutes to
move from an area of high concentration to an area of lower
concentration - ANSWER-Simple diffusion
What are three characteristics of prokaryotic cells? - ANSWER-Size, nonenclosed genetic material, and lack of organelles
True or false; the two major components embedded in a cell membrane
are nucleic acids, and lipids - ANSWER-False: the two main components
are phospholipids and proteins.