BIO145 quiz 3
1 of 25
All of the following are characteristics of living things except
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growth. |
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production of diseases. |
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reproduction. |
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metabolism . |
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reaction to the external environment. |
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2 of 25
One important function of carbohydrates is that they
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form enzymes. |
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are structural molecules. |
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repel water. |
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store energy. |
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hold genetic information. |
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3 of 25
Which of the following organic molecules store energy, provide insulation, and assist in buoyancy?
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Proteins |
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Carbohydrates |
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Lipids |
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Nucleic acids |
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Amino acids |
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4 of 25
One of the products of photosynthesis is
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water. |
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energy released into the surrounding environment. |
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oxygen. |
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carbon dioxide. |
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energy contained in the water molecules. |
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5 of 25
During the process of cellular respiration,
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energy is released from organic molecules to do work in the cell |
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carbon dioxide and water form sugars |
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solar energy is transformed into chemical energy |
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oxygen and carbon dioxide are produced |
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sunlight is used to create energy |
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6 of 25
Which of the following is not true of a cell?
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It is the basic structural unit of life. |
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Mitochondria are found in both plant and animal cells. |
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Cell walls are found in all plant and animal cells. |
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All organisms are made of one or more cells. |
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The membrane-bound structures within most cells are called organelles. |
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7 of 25
Which of the following is classified as a prokaryotic cell?
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Bacteria |
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Fungi |
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Protist |
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Animal |
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Plant |
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8 of 25
Which of the following shows the correct level of organization in order of increasing complexity?
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Molecule, cell, organelle, individual, community |
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Organelle, tissue, organ, community, population |
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Ecosystem, individual, organ, cell |
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Molecule, atom, cell, organ system, ecosystem |
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Atom, molecule, organ, population, ecosystem |
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9 of 25
A group of organisms of different species living together on a rocky beach is an example of which of the following?
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Population |
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Community |
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Individual |
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Ecosystem |
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Colony |
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10 of 25
The ecosystem best encompasses which of the following?
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All living organisms living in one area |
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Populations in one area but not the physical environment |
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The community or communities but not the physical environment |
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The community or communities and the physical environment |
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Populations and communities living in one area |
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11 of 25
The cell membrane is said to be "selectively permeable" because it
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allows only some substances to move through. |
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allows all substances to enter the cell. |
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allows all substances to leave the cell. |
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allows only the smallest molecules to enter the cell. |
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allows only water and salts to enter the cell. |
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12 of 25
Marine organisms whose internal salt concentration varies with that of their environment are examples of which of the following?
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Osmoregulators |
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Isotonic organisms |
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Poikilotherms |
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Osmoconformers |
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Homeotherms |
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13 of 25
All of the following are examples of asexual reproduction except
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fission. |
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fertilization. |
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plants sending out "runners." |
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budding. |
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cell division. |
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14 of 25
Which of the following shows the correct taxonomic levels from most inclusive to least inclusive?
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Kingdom, phylum, order, species, genus |
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Kingdom, phylum, family, genus, species |
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Kingdom, family, order, phylum, genus |
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Kingdom, order, phylum, genus, species |
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Order, family, phylum, genus, species |
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15 of 25
Cellular respiration occurs in the
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mitochondria. |
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endoplasmic reticulum. |
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Golgi complex. |
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nucleus. |
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centrioles. |
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16 of 25
The end product of cellular respiration is
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oxygen. |
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nitrogen. |
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ATP. |
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amino acids. |
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glucose. |
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17 of 25
The events of evolution best explain
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how organisms obtain energy from organic molecules. |
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why people use a three domain system of classification. |
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how life originated on Earth. |
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the growth and development of individual organisms. |
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why so many organisms have characteristics in common. |
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18 of 25
Two single-cell organisms are placed in a 3.5% salt solution. Cell A enlarges slightly and then stops. Cell B enlarges and finally ruptures. Which of the following was true at the time the cells were placed in the saltwater?
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Cell A was hypertonic to the solution and cell B was hypotonic. |
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Cell A was hypotonic to the solution and cell B was hypertonic. |
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Cells A and B were isotonic in relation to each other. |
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Cell B was hypertonic in relation to cell A. |
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Cell A was hypertonic in relation to cell B. |
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19 of 25
Natural selection is best shown by _________________.
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new species being formed by genetic engineering |
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breeders selecting animals with desirable characteristics to mate together |
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individuals with adaptive traits surviving and leaving offspring |
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smaller organisms in any habitat dying out when the environment changes |
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osmoconformers surviving in seawater of constant temperature and salinity |
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20 of 25
Which kingdom of eukaryotic organisms is multicellular and capture its food?
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Fungi |
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Animals |
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Plants |
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Protists |
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Bacteria |
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21 of 25
In order to transport materials in and out of an organism efficiently, the best situation would be to have a _____________________.
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small surface area to volume ratio |
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a 1:1 ratio of surface area to volume |
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large surface area to volume ratio |
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inside volume that is significantly larger than the surface area of the membrane |
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reduced surface area of the membrane in comparison to the volume of the cell |
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22 of 25
______________ and _____________ were long ago free-living cells that joined with other cells in a symbiotic association.
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Chloroplasts and the nucleus |
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Mitochondria and ribosomes |
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Chloroplasts and Golgi bodies |
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Mitochondria and chloroplasts |
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Ribosomes and the Golgi body |
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23 of 25
A unicellular freshwater organism suddenly is placed in a marine environment. It would be expected that the cell would __________________.
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increase in size |
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decrease in size |
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stay the same size |
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change size from smaller to larger and back to smaller |
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neither increase or decrease in size |
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24 of 25
A freshwater cell placed into a marine environment would initially be ________________ in relation to saltwater.
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hypotonic |
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hypertonic |
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isotonic |
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hypoxic |
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anoxic |
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25 of 25
Sea turtles maintain constant water-salt balance by ________________________________.
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moving back and forth between fresh and salt water |
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drinking sea water and retaining as much salt as possible |
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excreting water throughout the day |
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secreting salts through glands near the eyes |
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retaining both salt and water in their kidneys |
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Solution: BIO145 quiz 3