Question

Q38. Which of the following is Q39. The anatomical term "mentis" directly involved in protein synthesisi refers to: A) Plasma membrane A) The knees B) Ribosomes B) The head C) Transmembrane channels C) The chin D) None of the above D) The hands Q37. Which of the following is TRUE about the nucleus A) It is where ATP is produced B) It is a large non-membranous organelle C) It contains chromatin D) It is made of many mitochondria joined together with microtubules Q40. Ribosomes consist of: A) Lipids and electrically charged molecules B) DNA C) RNA and protein D) DNA and a lipid bilayer Q43. What does the term "pedal" Q41. Which of the following is found in only ONE type of human celli A) Flagella B) Mitochondria C) Lysosomes D) Endosomes Q44. What is a desmosome? A) A type of organelle B) A type of intercellular attachment/cell Junction C) A protein of the cytoskeleton D) An electrically charged molecule that interacts with ATP Q42. Which of the following terms are the opposite of each otheci A) Superior and anterior B) Anterior and distal C) Superior and superficial D) Medial and lateral Q45. Which of the following terms is the opposite of deep: A) Proximal B) Anterior C) Superficial D) Lateral refer to A) The hands B) The chest C) The chin D) The feet

Answer 1

37. Correct answer: C. It is a membrane bound organelle which contains genetic material (DNA) of eukaryotes. Nuclear DNA does not appear in free linear strands, it is highly condensed and wrapped around nuclear proteins in order to fit inside the nucleus. Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus.

38. Correct answer: B. Ribosomes. They are the sites in a cell in which protein synthesis takes place. Within the ribosomes, the rRNA molecules direct the catalytic steps of protein synthesis.

39. Correct answer: C. The chin. Mentis referrs to the chin

40. Correct answer: C. Ribosomes consists of RNA and proteins. Ribosomes consists of two subunits: 30S and 50S in prokaryotes and 40S and 60S in eukaryotes. Bacterial ribosomes contain 34% protein and 66% RNA while eukaryotic ribosomes contain 40% protein and 60% RNA. The 30S subunit contains 16S rRNA and 21 proteins; 50S subunit contains 5S and 23S rRNA and 31 proteins. In most eukaryotes, the 40S subunit contains an 18S rRNA and 33 proteins; the 60S subunit contains 5S , 5.8S and 28S rRNAs and 49 proteins.

41. Correct answer: A. Only one type of human cell is having flegella and that cell is sperm. Motile sperm cells typically move via flagella.

42. Correct answer: D. Medial and lateral. Medial means towards the midline of the body (example: the middle toe is located at the medial side of the fot. Lateral means away from the midline of the body (example: the little toe is located at the lateral side of the foot).

43. Correct answer: D. Pedal in anatomy refers to the feet.

44. Correct answer: B. Desmosomes are a type of intracellular attachment/ cell junction . As an intracellular junction they provide strong adhesion between cells.

45. Correct asnwer: C. In anatomy superficial is a directional term that indicates one structure is located more externally than another or closer to to the surface of the body. Example: The cornea is on the superficial surface of the eye.