A&P Quiz II WITH ANSWERS

A&P Quiz II Name: Bethany Delaney 1) Which one of the following best defines differentiation? A) the process of gradual structural and functional specialization of daughter cells B) cell growth C) fertilization of ovum by sperm D) maintenance of homeostasis at cellular level E) coordinated action of different cells 2) Which organelle synthesizes lipids and carbohydrates? A) nucleus B) Golgi apparatus C) mitochondria D) smooth endoplasmic reticulum E) rough endoplasmic reticulum 3) Which of the following is an example of a nonmembranous organelle? A) nucleus B) cilia C) endoplasmic reticulum D) peroxisomes E) mitochondria 4) Which of the following organelles neutralizes toxic compound during cell metabolism? A) microvilli B) peroxisome C) centrioles D) ribosomes E) mitochondria A&P Quiz II Figure 3-1 5) In Figure 3-1, which structure is water most likely to pass through? A) 1 B) 2 C) 3 D) 4 E) 8 6) A function of the glycocalyx is A) regulating movement across the membrane. B) lubrication of the cell surface. C) stiffening the membrane. D) forming a bilayer. E) isolating the cytoplasm from extracellular fluid. 7) Providing strength and moving materials within the cell is a function of the filaments and A) ribosomes. B) microfilaments. C) intermediate filaments. D) flagella. E) microtubules. A&P Quiz II 8) Which of following properties of the cytoskeleton is false? A) It supports organelles. B) It controls cell shape. C) It provides cell strength. D) It is made of cytobones. E) It moves organelles. 9) The endoplasmic reticulum is an example of a(n) ________ organelle. A) inclusion B) nonmembranous C) membranous D) integral E) exclusion 10) Ribosomes are composed of protein and A) rRNA. B) mRNA. C) tRNA. D) DNA. E) mDNA. 11) The following is a list of the steps involved in the process of secretion by the Golgi apparatus. 1. Material moves from cisterna to cisterna by means of transfer vesicles. 2. Exocytosis. 3. Products from RER are packaged into transport vesicles. 4. Secretory vesicles are formed at the trans face. 5. Vesicles arrive at the cis face. 6. Enzymes modify arriving proteins and glycoproteins. What is the proper order for these steps? A) 5, 6, 1, 4, 2, 3 B) 2, 3, 5, 6, 1, 4 C) 4, 3, 1, 6, 5, 2 D) 3, 5, 6, 1, 4, 2 E) 1, 3, 6, 4, 2, 5 12) Which cellular structure is responsible for cell autolysis? A) centrioles B) Golgi apparatus C) smooth endoplasmic reticulum D) rough endoplasmic reticulum E) lysosome A&P Quiz II 13) Each of the following is true concerning mitochondria except A) the cristae increase the inner surface area of the organelle. B) it has its own DNA. C) it contains ribosomes. D) in glycolysis reaction pyruvate is produced from glucose inside the mitochondria. E) the matrix is the fluid that is enclosed by inner membrane. 14) Histones are found in A) nucleosomes. B) centromeres. C) lysosomes. D) vesicles. E) endosomes. 15) A mature red blood cell lacks a nucleus. Thus, it A) can repair itself readily. B) is malformed. C) can only divide once more. D) will be a long-lived cell. E) cannot make new proteins and will be worn out within a few months. 16) Transfer of mRNA from the nucleus to the cytosol occurs through A) tRNA. B) DNA. C) endocytosis. D) exocytosis. E) nuclear pores. 17) What is the term for tRNA? A) transfer ribonucleic acid B) transfer ribosomal nucleic acid C) triplet ribonucleic acid D) triplet ribosomal nucleic acid E) thymine ribosomal nucleic acid 18) A molecule of ________ contains all the codons needed to produce a particular polypeptide. A) DNA B) rRNA C) mRNA D) tRNA E) mDNA A&P Quiz II 19) A unit in messenger RNA consisting of a set of three consecutive nucleotides is termed a(n) A) amino acid. B) tRNA. C) anticodon. D) codon. E) gene. 20) The mRNA sequence that is complementary to the sequence ATC on DNA is A) ATC. B) TAG. C) UAG. D) AUG. E) AUC