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- 1. Multiple ChoiceHomeostasis refers to ____.a. the ability of a cell to reproduceb. directions the cell receives from DNAc. the maintenance of a constant internal stated. the extraction of energy from nutrientse. the ability of organisms to move within their environments
- 2. Multiple ChoiceIn terms of classification humans belong to which domain?a. prokaryoteb. Eukaryac. Archaead. Bacteriae. protists
- 3. Multiple ChoiceWhich form of organization is classified between cell and organ?a. atomb. moleculec. compoundd. organellee. tissue
- 4. Multiple ChoiceEnergy flows into the biosphere from ____.a. waterb. raw materialsc. decompositiond. ecosystemse. the sun
- 5. Multiple ChoiceIn science, the word "theory" ____.a. is an explanation that has not been publishedb. has essentially the same meaning as a predictionc. is based mostly on opinionsd. signifies that a hypothesis has been tested and proven over a period of timee. means that a scientist has a hunch something is true
- 6. Multiple ChoiceA pure substance that cannot be broken down into another substance is known as a(n) ____.a. protonb. electronc. compoundd. elemente. isotope
- 7. Multiple ChoiceWhich element is not one of the four most common elements found in organisms?a. hydrogenb. oxygenc. carbond. heliume. nitrogen
- 8. Multiple ChoiceWhich statement is true of electron shells?a. The innermost shell can hold up to two electrons.b. The innermost shell is at the highest energy level.c. A shell can hold up 20 electrons.d. Larger atoms have less electron shells.e. A second shell with six electrons is completely filled.
- 9. Multiple ChoiceWhen an atom's outer electron shell is filled the atom is ____.a. unstableb. positively chargedc. polarizedd. most stablee. isotope
- 10. Multiple ChoiceThe bonding of two or more atoms creates a(n) ____.a. moleculeb. ionc. isotoped. mixturee. solution
- 11. Multiple ChoiceWhich type of bond is responsible for the linking together of two water molecules?a. hydrogenb. ionicc. polar covalentd. nonpolar covalente. isotropic
- 12. Multiple ChoiceHow do hydrophilic molecules interact with water?a. They are attracted to water.b. They are absorbed by water.c. They are repelled by water.d. They absorb heat from water.e. They transfer heat to water.
- 13. Multiple ChoiceAn acid is a substance that donates a(n) ____.a. neutronb. antioxidantc. hydroxide iond. electrone. proton
- 14. Multiple ChoiceA buildup of H + in the blood will lead to ____.a. alkalosisb. acidosisc. excess calciumd. excess carbon dioxidee. a higher than normal pH
- 15. Multiple ChoiceA system that compensates for pH fluctuations by donating or accepting H + is known as a(n)____.a. acidb. basec. saltd. buffere. antioxidant
- 16. Multiple ChoiceA nucleotide is composed of at least one sugar, one phosphate group, and ____.a. one nitrogen containing baseb. one amino acidc. multiple cholesterold. fatty acid chainse. ATP
- 17. Multiple ChoiceThere are how many different types of amino acids?a. 5b. 10c. 15d. 20e. 50
- 18. Multiple ChoiceThe sequence of amino acids in a protein represents its ____.a. primary structureb. secondary structurec. three dimensional shaped. tertiary folding patterne. biological function
- 19. Multiple ChoiceA phospholipid molecule contains a "head" portion that ____.a. is hydrophilicb. is derived from cholesterolc. contains two fatty acid chainsd. is similar in structure to a triglyceridee. forms a hydrophobic barrier
- 20. Multiple ChoiceFats that stay liquid at room temperature are ____.a. animal fatsb. unsaturatedc. trans fatty acidsd. phospholipidse. cholesterol
- 21. Multiple ChoicePlants store large amounts of carbohydrates in the form of ____.a. glycogenb. starchc. glucosed. sucrosee. lipids
- 22. Multiple ChoiceEach carbon atom can share pairs of electrons with as many as ____ other atoms.a. twob. threec. fourd. fivee. six
- 23. Multiple ChoiceA prokaryotic cell has all of the following EXCEPT ____.a. a plasma membraneb. DNAc. cytoplasmd. a nucleus inside a membranee. ribosomes
- 24. Multiple ChoiceIn what portion of a eukaryotic cell is the majority of DNA isolated?a. nucleusb. mitochondriac. vesiclesd. cytoplasme. lysosome
- 25. Multiple ChoiceWhich statement is true of mitochondria?a. Mitochondria are found only in prokaryotic cells.b. ATP is formed by reactions that convert carbon dioxide and water into sugars.c. ATP producing reactions take place in the outer compartmentd. Mitochondria possesses their own DNA.ATP producing reactions do not require DNA.
- 26. Multiple ChoiceThe production of ATP in the mitochondria requires ____.a. ribosomesb. oxygenc. carbon dioxided. vesiclese. DNA
- 27. Multiple ChoiceTwo solutions A and B are separated by a membrane, which is permeable to water but not salts. Solution A is a 2% NaCl solution, while solution B is a 3% NaCl solution. Which of the following will occur?a. Water will move from side B to side A.b. Water will move from side A to side B.c. Salt will move from side B to side A.d. Salt will move from side A to side B.e. Neither salt or water will move across the membrane.
- 28. Multiple ChoiceA red blood cell is placed in a solution. After a period of time, the cell has shrunk to half its original size. Which of the following is true?a. Water moved from the solution into the cell.b. The solution inside the cell is hypertonic.c. The cell was placed in a hypertonic solution.d. The cell was placed in an isotonic solution.e. Salt left the cell resulting in its change in size.
- 29. Multiple ChoiceWhich transport process requires ATP utilization?a. active transportb. osmosisc. diffusiond. facilitated diffusione. diffusion through a channel
- 30. Multiple ChoiceGlucose moves through a protein transporter down its concentration gradient into the cell. This is an example of ____.a. diffusionb. endocytosisc. exocytosisd. osmosise. facilitated diffusion
- 31. Multiple ChoiceThe chemical reactions in cells are called ____.a. substrateb. coenzymesc. receptor sitesd. metabolisme. active site
- 32. Multiple ChoiceMost enzymes are which type of organic molecule?a. lipidsb. mineralsc. carbohydratesd. vitaminse. proteins
- 33. Multiple ChoiceWith each turn of the Krebs cycle, ____.a. the majority of ATP are producedb. oxygen is producedc. carbon dioxide is utilizedd. NADH and FADH 2 are producede. pyruvate is produced
- 34. Multiple ChoiceWhat type of tissue covers body surfaces or lines cavities?a. muscleb. nervec. endocrined. epitheliale. connective
- 35. Multiple ChoiceExocrine glands secrete all of the following EXCEPT ____.a. milkb. hormonesc. salivad. earwaxe. enzymes
- 36. Multiple ChoiceWhat type of fiber allows tissue to easily stretch and recoil?a. elasticb. connectivec. collagend. dense regulare. loose regular
- 37. Multiple ChoiceMuscle that is striated and voluntary is ____.a. skeletal onlyb. smooth onlyc. cardiac onlyd. both skeletal and cardiace. both cardiac and smooth
- 38. Multiple ChoiceWhich cells supply nutrients to and remove wastes from nerve cells?a. dendritesb. glialc. myocytesd. neuronse. chondrocytes
- 39. Multiple ChoiceWhich portion of nerve cells receives incoming messages?a. cell bodyb. somac. axond. dendritee. synapse
- 40. Multiple ChoiceStem cells can be found in ____.a. nerve tissueb. all adult tissuec. muscled. epidermise. umbilical cord blood
- 41. Multiple ChoiceMembranes that line cavities and tubes in the digestive and respiratory systems are classified as ____.a. serousb. cutaneousc. mucousd. synoviale. visceral
- 42. Multiple ChoiceThe heart is located in which body cavity?a. cranialb. thoracicc. spinald. abdominale. pelvic
- 43. Multiple ChoiceWhich layer of the integument contains stratified squamous cells?a. epidermisb. dermisc. hypodermisd. subcutaneous layere. loose connective tissue layer
- 44. Multiple ChoiceThe most extreme form of body temperature increase is ____.a. hyperthermiab. heat exhaustionc. heat stroked. heat gaine. non shivering heat production
- 45. Multiple ChoicePositive feedback systems play a role in ____.a. blood pressure controlb. fluid volume regulationc. body temperature regulationd. child birthe. blood glucose regulation
- 46. Multiple ChoiceThe type of bone that forms the shaft of long bones is known as ____.a. spongy boneb. hard bonec. compact boned. hyaline bonee. synovial bone
- 47. Multiple ChoiceDuring the remodeling process, which cells break down the bone matrix?a. osteoblastsb. osteocytesc. glial cellsd. osteoclastse. chondrocytes
- 48. Multiple ChoiceThe portion of the skeleton that includes bones of the limbs, shoulder and hips is classified as the ____.a. axial skeletonb. cranial skeletonc. girdle skeletond. appendicular skeletone. vertical skeleton
- 49. Multiple ChoiceWhat structure connects a muscle to a bone?a. tendonb. ligamentc. cartilaged. jointe. collagen
- 50. Multiple ChoiceWhich bone is NOT part of the pectoral girdle or upper limbs?a. tibiab. claviclec. scapulad. humeruse. radius
- 51. Multiple ChoiceHow many bones are in the fully formed human skeleton?a. 50b. 56c. 150d. 196e. 206
- 52. Multiple ChoiceBone tissue is a storage area for ____.a. phosphateb. sodiumc. potassiumd. calciume. chloride
- 53. Multiple ChoiceWhich skeletal structure is NOT part of the axial skeleton?a. skullb. vertebratec. ribsd. sternume. scapula
- 54. Multiple ChoiceWhich bone is found on the "thumb side" of the forearm?a. scapulab. humerusc. radiusd. ulnae. clavicle
- 55. Multiple ChoiceWhich part of a synovial joint secretes lubricating fluid?a. synovial membraneb. articulating cartilagec. ligamentsd. fibrous connective tissuee. visceral membrane
- 56. Multiple ChoiceThe most common type of joint in the human body is a ____.a. synovial jointb. fibrous jointc. membranous jointd. cartilaginous jointe. hinge joint
- 57. Multiple ChoiceA patient with joint pain was sent to the hospital for lab work. The results showed significant over activity of her immune system. Based on these results, the most likely diagnosis is ____.a. osteoarthritisb. vitamin D deficiencyc. growth hormone deficiencyd. rheumatoid arthritise. osteoporosis
- 58. Multiple ChoiceThe stomach and liver are located in which body cavity?a. cranialb. thoracicc. spinald. abdominale. pelvic
- 59. Multiple ChoiceWhat molecule is the body's main energy source?a. oxygenb. carbon dioxidec. glucosed. fatse. proteins
- 60. Multiple ChoiceA computer programmer complains of pain in his wrist and numbness and tingling of his fingers. He likely suffers from ____.a. carpal tunnel syndromeb. osteoarthritisc. a wrist spraind. a slipped diske. a torn muscle
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