SNC2DI - Exam Review

True/FalseIndicate whether the statement is true orfalse.

1. Microscopes helped people understand that all cells come from cells.

2. White blood cells have a big nucleus.

3. The cell is the basic organizational unit that makes up tissue.

4. Cytosol is a term that describes the contents of a cell.

5. Both plant and animal cells have cell membranes that help them function.

6. Mitochondria help muscle cells.

7. Genes are found in the nucleus of the cell, which is divided during mitosis.

8. It is just as easy to clone a sheep as it is to clone a carrot.

9. A Cut heals because new cells are produced.

10. Cells separate into two Cells during mitosis.

11. A cell spends most of the cell cycle going through mitosis.

12. Ribosomes are found only in animal cells.

13. All tumour cells are cancer cells.

14. Epithelial cells make up all the layers of the skin.

15. Connective tissue cells can be bone, fat, or blood cells.

16. Stem cells are found only in embryos.

17. Pluripotent cells have the ability to differentiate into any other type of cell.

18. Skin is an organ system made up of many types of cells.

19. The digestive system starts with the stomach.

20. Arteries and veins are connected by capillaries.

21. Carcinogens, such as some chemicals in cigarette smoke, cause some cells to form tumours.

22. Xylem and phloem form the vascular bundles.

23. Tiny holes on the bottom of a leaf allow oxygen to enter the leaf.

24. Dandelions have a taproot.

25. Water enters the leaves of plants and is carried to the roots.

26. The advantage of a taproot is that it can draw a lot of water through its large surface area.

27. An object that can be heated to such a high temperature that it emits visible light is called a fluorescentsource.

28. A firefly glowing in the night is an example of bioluminescence.

29. Incandescent lighting is much more energy-efficient than fluorescent lighting.

30. The most abundant source of tight is the Sun.

31. Street lights emit light from heated gases.

32. A normal is a line that is parallel to the reflected surface.

33. The angle between the incident ray and the normal is called the angle of incidence.

34. Reflection occurs when light bounces off a surface.

35. If the angle of reflection is 55°, then the angle of incidence will also be 55°.

36. While looking in the bathroom mirror, you observe that your reflection appears to be the same distancebehind the mirror as you are in front of the mirror. This must be a convex mirror.

37. In a convex mirror, objects appear smaller than they are in reality.

38. Concave mirrors make great security devices in stores.

39. Images in plane mirrors are always upright, real, and larger than the object.

40. When an object is placed closer to a concave mirror than F, theimage will always be upright and virtual.

41. Radar antennae act as convex mirrors for radio waves.

42. Rays of light spread out when reflected off at concave mirror.

43. The focal length is the distance between the vertex of a mirror and the focal point.

44. The principal axis passes through the centre of curvature of the mirror.

45. Reflection is the bending of light as it travels frm one medium to another.

50. The angle of incidence that produces a refracted ray at an angle of 90° from the normal ia called thecritical angle.

51. A rainbow forms when sunlight enters a water droplet and refracts, reflects off the inner surface of thedroplet, and then refracts again when leaving the droplet.

52. Objects viewed at the bottom of a swimming pool are actually deeper than they appear.

— 53. Mirages are caused by the reflection of light in unevenly heated air.

54. Diverging lenses cause parallel light rays to spread away from a Common point.

— 55. The cornea is the tissue that forms a transparent curved structure in the front of the eye that refracts lightbefore it enters the eye.

56. Flyperopia, also known as far-sighiedp.eas is the condition in which the eye cannot focus on nearbyobjects.

57. In the human eye, the lens is the coloured ring that functions like the diaphragm of a camera.

58. An iontc compound is composed of ions with the same charge.

59. A ration a negatively charged ion.

60. A binary ionic compound is composed of two metal cations

61. Magnesium phosphide is an ionic compound.

62. Multivalent metals have more than one ion charge.

63. A reactant is a pure substance that is formed in a chemical change.

64. Formation of a gas is evidence that a chemical reaction has occurred,

65. The electrolysis of water, resulting in production of hydrogen and oxygen gas, is an example of a doubledisplacement reaction.

66. The reaction of zinc metal with hydrochloric acid, producing hydrogen gas, can be classified ass singledisplacement reaction.

67. Synthesis reactions SItr characterized by the following general equation:

A+B-,AB

68. Acids have a pH of greater than 7.

69. Acids are characterired by a bitter taste.

— 70. Bases are characterized by having a slippeiy feeling on skin.

71. Acids react with phenolphthalein and turn pink.

72. Bases react with litmus and turn blue.

73. When bases dissolve in water they release hydroxide ions.

74. Neutral solutions have the same concentration of hydrogen and hydroxide ions.

75. Acids react with bases to form only table salt and water.

76. Acids in soil deterrome whether some types of hydrangea plants produce blue or pink flowers.

46. Light travels in a straight line and at a constant speed as long as the medium it is travelling in is the same.

— 47. Fermat’s principle states that when light travels from one point to another, it follows the path that willtake the least time.

48. The diagram below demonstrates total internal reflection.

49. In the diagram below, light is passing from air into a medium of greater optical density, as evidenced bythe fact that light refracts toward the normal.

I I ,

Multiple ChoiceIdentify the choice that best completes the statement or answers the question.

77. Which of these statements is not part of the cell theory?a. All cells come from pre-existing cells.b. All cells have a nucleus.c. All living organisms are made of one or more cells.d. The cell is the basic organizational unit of life.

78. Which of theae organdies are found only in plant cells?a. cell membrane c. chloroplastb. mitockondria d. vesicle

79. The nucleus of a cell containsa. chromosomesb. stored food

80. The first mammal cloned from an adult cell rather than from an egg wasa. a red calf. c. a sheep.b. a cat d. a Labrador retriever.

81. Which of the following is not part of a plant cell?a. Golgi bodyb. cell membrane

82. The cell membranea. has no function that is known.b. controls what substances enter the cell.

83. Diffusion means thata. particles move around until they are distributed evenly.b. all particles cross a membranec. smaller particles move across the membrane faster.d. particles stop when they are halfway across the membrane.

— 84. Spindle fibres first start to form duringa. prophase.b. metaphase.

— 85. The chromosomes are aligned across the centre of the cell duringa. prophase. c. anaphase.b. metaphase. d. telophase.

86. The replicated chromosomes are separated by spindle fibres duringa. prophase. c. anaphase.b. metaphase, d. telophase.

87. The newly separated chromosomes are surrounded by the nuclear membrane duringa. prophase. c. anaphase.b. metaphase. d. telophase.

— 88. Cytokinesis in plant cells is different from cytokisiesis in animal cells becausea. new cells are made at the terminal bud.b. there are no Spindle fibres.c. plants don’t have chromosomesd. a cell plate forms without pinching.

89. Which is an activity that a cell does not do during interphase7a. make special proteins c. release energy from foodb. copy the DNA in chromosomes d. separate into two different cells

90. Which factor is flora main factor that influences differentiation in divided animal cells?a. the size of the cellb. environmental conditions such as temperaturec. the contents of the cell’s cytoplasmd. the influence of neighbouring cells

91. A specialized cella. has some inactive genes.b. has no active genes.

92. Nerve tissue formsa. ligaments.b. nuclear cells.

93. Stem cells in animals are comparable to which cells in plants?a. bud cells c. ground cellsb. endosperm cells d. meristem cells

94. How are bodies organized? (from big to small)a. system, organ, tissue, cellb. cell, organ, tissue, system

95. Food passes through the digestive aystem from the mouth to the stomach through thea. small intestine c. duodenumb. esophagus d. pyloric sphincter

96. The large intestinea. absorbs water.b. secretes enzymes.

97. The main puipose of the heart is toa. clean Waste from the blood before it goes to the lungs.b. mix blood from the lungs gnd the body.c. remove toxic substances from blood after it comes back from the lungs.d. pump blood through the body and blood through the lungs.

98. Theaortacomesoutofthea. left atrium.b. left ventricle.

99. The most muscular pump in the heart is thea. left atrium.b. left ventricle.

c. eggsd. fibres

c. cell walld. ribosome

c. is responsible for starting mirosis.d. has a thick cuticle around the outside.

c. is ready for mitosis.d. is ready for cell death.

c. neurons.d. matrix cells.

c. anaphase.d. telophase.

c. tissue, organ, cell, system,d. organ, cell, system, tissue

c. makes bile.d. breaks down the food eaten.

c. right atrium.d. right ventricle.

c. right atrium.d. right ventricle.

100. The air we breathe moves to the bronchus mm thea. tracheab. pharyn

101. Dust and dirt are removed from the air bya. Smooth muscle contractionsb. ureters and urethra

102. In the lungs, oxygen enters the bloorj stream from thea. epiglottisb. alveoli.

103. Meristematic cells can become everything excepta. dermal tissueb. sap.

104. Plant ground tissue includesa. xylem cells.b. PhOtosynthe cells.

105. The layers of a leaf from top to bottom area. mesophyll guard cells, palisade epidermisb. epidermis, guard cells, mesophyll palisadec. epidermis, palisade mesophyll guard cellsd. mesophyll, Palisade, guard cells, epidermis

106. The cuticle helps the leaf bya. letting carbon dioxide into the leaf.b. reducing water loss.

107. Palisade cells help the plant bya. Protecting the leaf from insecte.b. Providing some scturaj sngth to the leaf so it does not collapse.c. attracting Pollinators to flowers.d. cing sugar made by photosynthe5j5away to other pans of the plant.

Guard cells controla. the insects that might enter a plantb. the openings in leaves called stonvjta

110. Chloropia area. found in all parts of a plant.b. respolisible for making sugar.

Which term descdbes the visible light given off bya chemica, reaction?a. incandescence c. chemjlumineacencb fluorescence d. bioluminescence

112. Which of the following best descijbea the term rat’?a. light that pasars through any substarb. a straight line that reprearnts the path of a beam of lightc. light that is bent as it Passes through a translucent objectd. an explanation based on observation of how light behaves

113.

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Wave ‘‘uaee NfliCrawaves Sotr IC fa/5 ga//ma

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Which colour of light has the shortest wavelenh9a. redb. blue

114. There Wants to powder her nose. The powder comes in a small compact with a mor. When Theresaopens the mirror she flotices that when she is close to the mirror, her nose appears a bit larger thannormal. From her studies in optics, she is confident that the mirror isa. concave c. plane.b. convex d. compact.

115. The image seen in a convex or in compmison with the object, is alwaysa. smaller and upright. c. smaller and inverted.b. larger and upright. d. larger and inverted.

116. When an object is far from a concave mirro the image is alwaysa. smaller and upright. c. larger and inverted.b. larger and upright d. smaller and inverted

117. How do reflected rays form an image you can see in a mirror?a. Light reflects off the object only.b. Light reflects off the object and the mirror.c. Light travels into the mirror and forms an image.d. Light travels from the object directly into your eye.

118 Which of thear descptora is not acharactedstic of an image?a. size c. locationb. upright or inverted d. accommodetion

C. bronchioles.d. diaphragm

c. microvilli and villi.d. cilia and mucus.

c. microvillid. capillaries.

c. Vascumi. tissue.d. ground tissue.

c. epidermal cells.d. phloemcelis

c. keeping insects out.d. attracting pollinators

108.

109. Transpiration is controlled bya. guard cells.b. mesophyll cells.

c. greend. violet

c. the amount of sap that gets into a leaf.d. the size of a leaf.

c. vascular bundles.d. Palisade cells.

c. coloured to attract pollinatorsd. used by guard cells to close stomata.

A concave mirror has a focal length of 10 cm. How far away from the mirror will the image appear if anobject is placed 20cm from the mirror?a. 15 cm c. 25 cmb. 20cm d. 30cm

A 15-cm high object is place 5 cm from a concave mirror of focal length 10 cm. How far from the mirrorwill the image appear?a. 5cm in front of the mirror c. 10cm in front of the mirrorb. 5 cm behind the mirror d. 10cm behind the mirror

What is the magnification of a mirror of focal length 10 cm if a 12-cm high object appears to be 18 cmtall?a. 2.0 c. 1.75b. 1.5 d. 1.2

Which of the following statements is true of an image seen in a plane mirror?a. It is smaller than the object it reflects.b. It is larger than the object it reflects.c. It is the same size as the object it reflects.d. It can be either larger or smaller than the object it reflects.

While driving across the prairie on your summer vacation, you notice the road ahead looks as if it iscovered by a pool of water. As you get closer, however, the pool seems to disappear. It was actuallya. an image of the sky refracted by the warm air near the ground.b. heat waves refracted across the surface of the road.c. refracted images of the road affected by the heat.d. caused by cool air near the road refracting the warmer air above the road.

This optical device contains prisms that change the path of light through 360° as it moves from theobjective lens to the eyepiece.a. telescope c. microscopeb. binoculars d. camera

The surface between two media is called thea. normal. c. boundary.b. reflecting surface. d. wave front.

Use the accompanying table to answer the following question(s).

126. In which of the following media is the speed of light fastest?a. water c. carbon disulfideb. glycerol d. ethyl alcohol

127. The speed of light in water is equal to which of the following?a. 3.00 10 m/s c. 2.25 <-s l0 m/sb. 2.20 l0 rn/s d. 3.36 i0 rn/s

128. Which of the following is the opening in your eye through which light enters?a. retina c. pupilb. optic nerve d. iris

129. An object is placed between one and two focal lengths from a converging lens. Which of the following isnot characteristic of the image formed?a. farther from lens than object c. larger than objectb. upright d. real

130. For diverging lenses, the image characteristics are never which of the following (regardless of the locationof the object)?a. upright c. closer to the lens than the objectb. virtual d. larger than the object

131. Which ion has the same number of electrons as an atom of argon?a. Ca2’ c. Bfb.Na d.N

132. How many electrons does a beryllium atom lose when it forms an ion?a. I c. 3b. 2 d. 4

133. How many electrons does phosphorus have in its valence energy level?a. 3 c. 5b. 4 d. 6

134. When carbon dioxide is formed, how many shared pairs of electrons are present?a. 1 c. 3b. 2 d. 4

135. Which element does not exist as a diatomic molecule?a. oxygen e. phosphomsb. nitrogen d. chlorine

136. Consider the diagram below of an unknown element. Elements from whichchemical family in the periodic table are most likely to react with thiselement to form an ionic compound?

a. alkali metals c. alkaline earth metalsb. halogens d. noble gases

137. Which of the following is not an acceptable formula for a manganesecompound?a. MnO c. Mn,03b. Mn30, d. MnO,

119.

120.

121.

122.

123.

124.

125.

138. The coect name for the CompoundP4010 is:a. decuoxide c. tetraphosphore decaoXideb. Phosphoms Oxide dipho05pentaoxjde

139. Comidrr the following skeleton equatjo for the production ofaonj5i8en the equation is balancedhow meny atoms of hydrogen appearo0each side of the chenrical equation?

N2 + F , - NH,

a. two C. sixb. three d. eight

aqueous ionic solutiom?140 What tç of chencal reaction will produce at least One solid ionic product from the reaction of Ovo

a. single replacement c. synthesisb. double replacement d. con ustion

141. Copd the following balanced formula equatjo.

2 FeO,(s) — 4 Fe(s + 3

Which of the following is an accura drscriptj00 of the even nccing is this reaction?

forjna fron(lIf) cation5 gain electrons and oxide anions lose electrom as the product elements

form.b. fron(l1) carione gain electrone and oxide anions lose electrons as the product elements

form.c. fron(llI) catiom lose electrons and Oxide ahions gain electrons as the Product elements

form.d. Iron(ll) catione lose electr05 and oxidr shion gain electro5as the product elemenh

142. When niae5ium met and hitrogen gas react togee the coect formula for the product will be:a. MgN c.b. Mg,N, d. MgN,

143. Consjdrr the following reactants.

K,p04 -- Fe(NO,), —, 7

The products of the reaction that occurs are:a. Fep04 + KNO,b. FeIC, + NO,po4

144. COreidrr the following reaction.

Sn(NO,) +Na,p04 —s Sn,(P04) +?

Which of the following is the name of the missing product?a. tin(iv nitrate c. tin(W) phosphab sodium Phosphate d. sodium nitrip

145. Comider the following balanced chemical equatjo.

2A1(5)+3CuCI,(aq) -2AICI,(aq) + 3Cu(s)

Which of the following statements best describes what is occing during this reaction?a. Aluminum ions sre replacing copper atoms from 5olutionb. Aluminum atoms are replacing copper ions from solution.c. Copper ions are replacing aluminum atoms from solutiond. Copper atoms are replacing aluminum ions from solution

146. A chemical change occurs whena. a tomato is sliced c. iced lea cstajs are dissolved in waterb. an egg is boiled d. an ice cube melts.

Use thfoI1owing table toa, the nextfive questjo,55

b. x

C. Fe,po, +d. K,Fe +

H TableSolutjo,1 H

147. 1dentjj, the solutions that are acidic ‘

a. U, V, and X c. U, X, and Yb. V, W, and 2 d. W,

148. ldentj the solution that is neutrala.U c.W

d.z

149. Which Solution is the most basic?a. c.y

d. Z

150. Which reaction is an example a neutraliantion reaction?a. Cls(g) +2Na&(sq) —. &U) +2NaCl(sq)b. NaoH(aq) ÷ HCl(aq) NaCl(a + HO(l)C H,CO,5—s CO, li,O(l)d. N2(g) +3F12(g) —2NFI,(g)

151. A solution is found to have an H ion concentratio 10 000 times lower than that of pure Water. Which ofthe following conclusiom would coiTespe to this obsers,arion?a. a basic solution with a pH of 11 c. 50 acidic solution with a phi of 11b. anacidk solution witha phi of 3 d. a basic solution with a phi of 3