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Questions 29-32 match the letter of the organelle next to its corresponding function. A) Ribosomes B) Microtubules C) Plasma Membrane D) Mitochondria 29. Flexible boundary layer for ALL cells; regulates what comes in or out of the cell. 30. Network of fibers inside the cytosol (cytoplasm) that helps cell's movements. 31. The site of protein synthesis. 32. The site of cellular respiration and cellular energy (ATP) formation. 33. True or False --------- Smooth Endoplasmic Reticulum (ER) is the site of lipid synthesis and Rough Endoplasmic Reticulum (ER) is the site of protein synthesis. 34. ____ are the major lipids of plasma membranes. A) Steroids B) Fatty acids C) Starches D) Phospholipids 35. Most homeostatic mechanisms depend on . A) positive feedback B) negative feedback Questions 36-40 match the letter of given term next to its corresponding definition. A. active transport B. Pinocytosis C. Facilitated diffusion D. Antiport E. Symport 36) _a cell engulfs fluids forming an invagination and suspend it within a small vesicle. 37) _ carrier moves solute down its concentration gradient with no need of ATP molecule 38) _ carrier moves solute through a membrane up its concentration gradient uses ATP molecule 39) carries two or more solutes simultaneously in same direction (cotransport) 40) __ carries two or more solutes in opposite directions (counter transport)

          Questions 29-32 match the letter of the organelle next to its
corresponding function.
A) Ribosomes B) Microtubules C) Plasma Membrane D)
Mitochondria
29. Flexible boundary layer for ALL cells; regulates what comes
in or out of the cell.
30. Network of fibers inside the cytosol (cytoplasm) that helps
cell's movements.
31. The site of protein synthesis.
32. The site of cellular respiration and cellular energy (ATP)
formation.
33. True or False --------- Smooth Endoplasmic Reticulum (ER) is
the site of lipid synthesis and Rough Endoplasmic Reticulum (ER) is
the site of protein synthesis.
34. ________ are the major lipids of plasma membranes. A)
Steroids B) Fatty acids C) Starches D) Phospholipids
35. Most homeostatic mechanisms depend on ________. A) positive
feedback B) negative feedback
Questions 36-40 match the letter of given term next to its
corresponding definition.
A. active transport B. Pinocytosis C. Facilitated diffusion D.
Antiport E. Symport
36) _______a cell engulfs fluids forming an invagination and
suspend it within a small vesicle.
37) _______ carrier moves solute down its concentration gradient
with no need of ATP molecule
38) _______ carrier moves solute through a membrane up its
concentration gradient uses ATP molecule
39) ______ carries two or more solutes simultaneously in same
direction (cotransport)
40) ______ carries two or more solutes in opposite directions
(counter transport)

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