42. The evolutionary process that created chloroplasts and mitochondria is: A. p

Question

42. The evolutionary process that created chloroplasts and mitochondria is: A. punctuated equilibrium B. evolution. C. endosymbiosis. D. symbiosis. 43. Ribosomes are made up of: A. only protein B. protein and C. only RNA. RNA molecules molecules. D. DNA and E. only DNA. RNA. molecules. 44. When the solute concentration of solution A is lower than the solute concentration of solution B, solution A is A hypertonic. B. hypotonic. C isotonic. 45. The type of movement that is specific and requires carrier molecules and energy is exocytosis. B. facilitated diffusion. C. active transport. D. endocytosis. E. osmosis. 46. s can only occur if water travels through the B. semi-permeable membrane. C. vacuole. D. ER. E. cytoskeleton. 47. A drug binds to the active site of an enzyme. If it is bound to the active site of the enzyme, it prevents substrate binding This drug would be considered a A. noncompetitive inhibitor B. allosteric inhibitor c. allosteric activator D. competitive inhibitor 48. One way to generate acetyl-CoA is to convert pyruvate into acetyl-CoA by stripping off a co molecule. The removal of CO2 is referred to as what type of reaction? A. Decarboxylation C. Carboxylation B. Glycolytic D. Acetylati 49. Plants that show a pattern of stomatal opening and closing that is the reverse of C ants are called: C. CAM D. Calvin cycle B. Temperate response to injury, cell fragments called platelets get activated to induce cloting. Activated platelets release factors that can in turn bind to specific membrane receptors on nearby cells. What type of signaling would this be considered? B. Paracrine C. Endocrine D. Synaptic E. Autocrine A. Direct contact

Explanation / Answer

Q42. Option 'C' that is endosymbiosis is correct option. According to endosymbiont theory the bacteria lived as endosymbionts in eukaryotes.

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