CRCT

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CRCT

• Review Questions

2
1.

• 1. Which metric unit would you use to measure the
  mass of an object?
• A. Meters
• B. Grams
• C. Inches
• D. Pounds
• U1MA

3
2.

• Place the classification groups from largest to
  smallest.
• A. Kingdom, Phylum, Family, Order, Genus,
  Species, Class
• B. Kingdom, Phylum, Class, Order, Family,
  Species, Genus
• C. Kingdom, Phylum, Class, Order, Family, Genus,
  Species
• D. Kingdom, Species, Genus, Family, Order, Class,
  Phylum

4
3.

• All organisms classified in the same Order must
  also be classified in the same ____________.
• A. Family
• B. Species
• C. Phylum
• D. Genus

5
4.

• Erin guesses that it is about 100 meters from our
  room to the office. She is ____________.
• A. Measuring
• B. Inferring
• C. Estimating
• D. Hypothesizing

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5.

• Which quotation is an example of a hypothesis?
• A. I think the Falcons will win the Super Bowl
  next year.
• B. I think that Mr. Stokes is the best science
  teacher ever.
• C. I think I will pass the science part of the
  CRCT this year.
• D. I think high school will be fun because Ill
  get to pick my classes.

7
6.

• Which of the cell parts listed below is the
  control center of the cell?
• A. cell membrane
• B. cytoplasm
• C. nucleus
• D. cell wall

8
7.

• What is the primary purpose of mitochondria in a
  cell?
• A. They store genetic information.
• B. They convert food molecules into energy the
  cell can use.
• C. They trap sunlight and use the energy to make
  food.
• D. They ship proteins and other substances across
  the cell membrane.

9
8.

• Which of the following correctly lists an
  organisms structure from simple to complex?
• A. cells, organs, tissues, organ systems,
  organisms
• B. cells, tissues, organs, organ systems,
  organisms
• C. tissues, cells, organs, organ systems,
  organisms
• D. tissues, organs, cells, organ systems,
  organisms

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9.

• What is the function of the cell membrane?
• A. Moves materials in and out of the cell.
• B. Stores materials such as water.
• C. Carries nutrients throughout the cell.
• D. Carries waste away from the cell.

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10.

• Suppose there is a town called Cellville. Which
  building in Cellville would have a purpose
  similar to the mitochondria of the cell?
• A. the library
• B. the water tower
• C. the power plant
• D. the police station

12
11.

• The END products of respiration are
• A. glucose and water
• B. carbon dioxide, water, and energy
• C. oxygen, water, and energy
• D. glucose and carbon dioxide

13
12.

• Photosynthesis is the process in which light
  energy is converted into food. Which of the
  following is produced by photosynthesis?
• A. light
• B. heat
• C. protein
• D. sugar

14
13.

• Where in the cell does respiration occur?
• A. mitochondria
• B. chloroplasts
• C. ribosomes
• D. cell membrane

15
14.

• Which statement best explains osmosis?
• A. osmosis is the movement of water
• B. osmosis is the diffusion of water
• C. osmosis is the diffusion of water through a
  mixture
• D. osmosis is the diffusion of water through a
  membrane

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15.

• The cell membrane is to the cell as a
  ___________________ is to a classroom.
• A. desk
• B. power outlet
• C. book
• D. door

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16.

• Diffusion is the movement of molecules from an
  area of high concentration to an area of low
  concentration. Which of the following is an
  example of diffusion?
• A. Open a gate to allow horses to pass through.
• B. Food coloring spreading through water.
• C. Carrying books to class.
• D. Walking against the flow of traffic.

18
17.

• Specialized cells that are similar in structure
  and function are usually joined together to form
  ________.
• A. tissues
• B. organs
• C. organ systems
• D. organisms

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18.

• Where would this cell most likely be found?
• A. Bacteria C.leaf
• B. Frog D.mushroom

20
19.

• In which plant cell structure does photosynthesis
  occur?

A. Vacuole B. Chloroplast C. Cytoplasm D. Nucleus
21
20.

• New yeast grows on a parent yeast organism, and
  breaks off when it is ready to form a new,
  separate organism. What type of reproduction is
  this an example of?
• A. Sexual reproduction
• B. Mitosis
• C. Regeneration
• D. Asexual reproduction

22
21.

• Which of the following traits of a dog is
  inherited from its parents?
• A. the presence of fleas in its fur
• B. the color of its fur
• C. the ability to sit up and beg
• D. the habit of barking to go outside

23
22.

• Each form of a gene is called an allele. The
  alleles for human blood type are A, B, and O.
  Both the allele for type A blood and type B blood
  are dominant. The allele for type O blood is
  recessive. What blood type will a person have if
  he inherits an allele for type A and an allele
  for type O?
• A. Type A
• B. Type B
• C. Type AB
• D. Type O

24
23.

• DNA is essential to living organisms because it
• A. carries the genetic code.
• B. is a spiral helix.
• C. can prevent diseases.
• D. can break apart.

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24.

• Poodles, like all dog breeds, are so closely
  related to wolves that they can breed with them.
  What is the best explanation for why wolves and
  poodles do not look alike, despite being
  extremely close relatives?
• A. Poodles have naturally evolved to look
  differently from wolves.
• B. Wolves once resembled poodles, but quickly
  died out in the wild.
• C. Wolves once resembled poodles, but they
  evolved to look differently.
• D. Poodles are the result of people selectively
  breeding them for specific traits.

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25.

• The scientific name of the domesticated dog is
  Canius lupus. Which of the following animals
  would be most closely related to the dog?
• A. Felis domesticus
• B. Canius latrans
• C. Felis lupus
• D. Vulpes cana

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26.

• Ken owns a peacock farm. One day, a large batch
  of eggs hatch and Ken discovers that a few of the
  chicks are white instead of blue. White chicks
  can be sold for 100 each, instead of the 50
  that people pay for blue chicks. If Ken wants to
  raise more white peacocks in order to make more
  money, what should he do?
• A. He should continue breeding the peacocks the
  same way.
• B. He should always be sure to cross blue
  peacocks with white peacocks.
• C. He should isolate the white peacocks and allow
  them only to breed with each other.
• D. He should bleach the blue peacocks white
  before allowing them to breed with any white
  peacocks.

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27.

• Mike and his three brothers all have brown hair.
  Mike's father has brown hair, too. Mike's mother,
  however, is the only family member that has red
  hair color. What likely conclusion can you draw
  about the gene for hair color?
• A. The gene for red hair is dominant over the
  gene for brown hair.
• B. The gene for brown hair is dominant over the
  gene for red hair.
• C. Neither brown nor red are dominant since they
  both occur in the same family.
• D. Red and brown genes are co-dominant

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28.

• George Washington XIV decides that he likes a
  particular cherry tree in his yard. He makes a
  number of cuttings from this tall, white-flowered
  parent tree. The cuttings grow up into new cherry
  trees. What is true about the offspring cherry
  trees produced from cuttings?
• A. The offspring trees will be inferior to the
  parent tree.
• B. The offspring trees are clones of the parent
  tree and should look very similar.
• C. The offspring trees will vary greatly in
  height but they will all have white flowers.
• D. Some offspring trees will develop white
  flowers, while others will develop flowers of
  different colors.

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29.

• If you cross-pollinate a tall pea plant with a
  short pea plant, the offspring would be
• A. Heterozygous
• B. Homozygous
• Purebred
• Mutated

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30.

• Sarah is home sick with a flu virus. What is her
  body doing to help her get better?
• A. Her digestive system is breaking down the
  virus.
• B. Her reproductive system is making healthy new
  cells.
• C. Her endocrine system is making hormones to
  fight the virus.
• D. Her immune system is working to attack the
  virus.

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31.

• After blood is used, it is recycled back to the
  heart where it is eventually pumped back through
  the body. Before it can be reused, which organ
  must the blood pass through before it is returned
  to the rest of the body?
• A. the stomach, because it must receive nutrients
• B. the lungs, because it must be re-oxygenated
• C. the skin, because it must release excess heat
• D. brain, because it must receive messages

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32.

• All human body systems work together. What
  would happen to Samantha if one of her systems
  began to fail?
• A. The other systems would continue to function
  as usual.
• B. The system that is inefficient could be
  removed.
• C. The system directly beside the inefficient
  system would take over the functions of the
  inefficient system.
• D. The other systems would begin to fail
  eventually.

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33.

• Use the list below to answer this question.
• carrying oxygen to the cells
• carrying carbon dioxide away from the cells
• carrying food to the cells
• carrying waste products away from the cells
• Which system is most responsible for all of the
  body
• functions listed above?
• A. circulatory system
• B. muscular system
• C. nervous system
• D. respiratory system

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34.

• Which of these best completes the statement
  about the interaction of the digestive system
  with the circulatory system? The digestive system
  adds
• A. nutrients to the blood
• B. bile to the blood
• C. oxygen to the blood
• D. carbon dioxide to the blood

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35.

• Where, in a cell, does respiration occur?
• A. mitochondria
• B. chloroplasts
• C. ribosomes
• D. cell membrane

37
36.

• Photosynthesis is the process in which light
  energy is converted into food. Which of the
  following is produced by photosynthesis?
• A. light
• B. heat
• C. protein
• D. sugar

38
37.

• What type of cell MUST take in carbon dioxide in
  order to stay alive?
• A. plant cell
• B. animal cell
• C. fungal cell
• D. yeast cell

39
38.

• The process of releasing energy from food is
  called
• A. plant transpiration
• B. human circulation
• C. body perspiration
• D. cell respiration

40
39.

• Food-producing and energy-producing organelles in
  plants are
• A. chloroplasts and mitochondria.
• B. Golgi bodies and chloroplasts.
• C. lysosomes and Golgi bodies.
• D. mitochondria and lysosomes.

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40.

• Which of the following would be an example of a
  competitive relationship?
• A. a hawk and an owl
• B. a bee and a flower
• C. a fish and seaweed
• D. a lion and a gazelle

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41.

• Which of the following would be biotic?
• A. water
• B. producers
• C. soil
• D. the sun

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42.

• Clownfish live among sea anemones for protection
  and shelter. The sea anemone feeds on predators
  of the clown fish. What type of relationship is
  represented by a clownfish living near a sea
  anemone?
• A. commensalism
• B. mutualism
• C. parasitism
• D. predator/prey

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43.

• Hermit crabs live in shells that were abandoned
  by snails. This neither helps nor harms the
  snails. What type of relationship is this?
• A. commensalism
• B. mutualism
• C. parasitism
• D. predator/prey

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44. On this food web what is the original source
of energy for the fox?