BIOLOGY II: Human Anatomy and PhysiologyName______
Chapter 3.Cellular Structure and Function
For the following question mark A if true and B if false.
- ___You could see the cheek epithelia with the unaided eye if it was stained correctly.
- ___The sperm is the largest cell produced in humans.
- ___A red blood cell is an example of an undifferentiated or pluripotent cell.
- ___The cell membrane is composed of a single layer of phospholipid molecules.
- ___The phospholipid molecule has aphosphate group which carries a charge and is polar
- ___The phospholipid molecule has a fatty acidthat is uncharged and is non-polar.
- ___The cell membrane is composed of both phospholipids and embedded proteins.
- ___The non-polar components of the cell membrane make it selectively permeable to water.
- ___ Growth and the replacement of worn out cells in organisms is accomplished by mitosis
- ___Cellular respiration results in the production of glucose.
- ___The molecule ATP is produced by the mitochondria in all cells.
- ___Chromatin is composed of DNA and histone proteins
- ___The smooth endoplasmic reticulum is responsible for the production of mitochondria.
- ___The golgi apparatus’ major function is the formation of the mitotic spindle.
- ___During metaphase of mitosis chromosomes align along the cell’s equatorial plane.
- ___DNA replication occurs during anaphase.
- ___Osmosis is a form of passive transport in cells.
- ___Ionic pores like those for Sodium are important forms of active transport.
- ___The Na/K Pump is a membrane protein that is found in large quantities in nerve cells.
- ___The cheek epithelial cell is about 100m or .10mm in diameter.
For the following questions choose the best answer
21. Cells with a specific structure and function are said to be?
a. omnipotentb. pluripotentc. progenitord. differentiated
22. This type of membrane protein carries out active transport?
a. ion channelb. ion porec. Na/K ATPased. none of the above
23. Which of the following prefixes means cell?
a. endob. nucleoc. organd. cyto
24. This organelle is responsible for directing all cellular activities?
a. endoplasmic reticulumb. cytoskeleton c. mitochondria d. nucleus
25. This organelle is responsible for the formation of the mitotic spindle?
a. golgi apparatusb. cytoskeleton c. mitochondria d. nucleus
26. This organelle is responsible for the production of proteins and lipids?
a. endoplasmic reticulumb. cytoskeleton c. mitochondriad. nucleolus
27. This is responsible for RNA synthesis?
a. endoplasmic reticulumb. cytoskeletonc. mitochondriad. nucleolus
28. Secretory vesicles release their contents by fusing with
a. proteinsb. lysozomesc. the cell membraned. none of the above
29. The movement of secretory vesicles is guided by the?
a. cytoskeletonb. nucleolusc. ribosomesd. all of the above
30. During this phase of Mitosis chromosomes are pulled apart by the mitotic spindle.
a. Interphaseb. Prophasec. Metaphased. Anaphase
31. During this phase of Mitosis the nucleus dissolves and chromosomes appear.
a. Interphaseb. Prophasec. Metaphased. Anaphase
32. During this phase of the Cell Cycle DNA is replicated
a. G1b. Sc. G2d. Mitosis
33. During this phase of Mitosis chromosomes unwind and the nuclear membrane reforms.
a. Telophaseb. Prophasec. Metaphased. Interphase
34. The synthesis of proteins is controlled by and occurs through the actions of
a. nucleusb. ribosomesc. golgi apparatusd. all of the above
35. If you drink salt water what might you expect to happen?
a. dehydrationb. vomitingc. myocardial infarctd. all of the above
36. What is the common term for Myocardial infarct?
a. diarrheab. tootingc. blowing oatsd. heart attack
37. Which of the following are examples of passive transport in cells
a. transcytosis b. the Na/ K pump c. carrier facilitated diffusiond. exocytosis
38 Which of the following is most likely to pass through the membrane via an ionic pore?
a. potassiumb. waterc. oxygend. none of the above
39. Which of the following is most likely to pass directly through the cell membrane?
a. potassiumb. glucosec. oxygend. none of the above
40. What is most important in determining a substances ability to pass through the cell membrane?
a. sizeb. polarityc. boiling pointd. both a & b
41. The three major components of the cell are
a. the cell membraneb. the cytoplasmc. cytosold. all of the above
42. You would be most likely to find perioxisomes in cells located in this organ
a. brainb. lungsc. liverd. testicles
43. Where do lysozomes come from?
a. chloroplastsb. nucleusc. golgi apparatusd. santa’s workshop
44. This is an example of unregulated cell division?
a. mitosisb. cell cyclec. differentiationd. cancer
45. Which tissues would you expect the highest frequency of mitosis?
a. brain cellsb. bone cellsc. stem cellsd. skin
46. Mitochondria are responsible for which of the following
a.breakdown of glucose b. ATP production c. energy production d. all of the above
47. These sequences at the end of chromosomes regulate cell death
a. telomeresb. centromerec. nucleosomesd. centrioles
48. Lipids are made of
a. amino acidsb. phospholipidsc. fatty acidsd. none of the above
49. Nucleic Acids are made of
a. amino acidsb. phospholipidsc. fatty acidsd. none of the above
50. Preprogrammed cell death is also known as
a. dietosis b. halloweenosis c. apoptosisd. cytosis