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Indicate whether the next 3 sentences or statements are true or false.
____ 1. Plants and animals capture their energy from the sun. |
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| ____ 2. Cellular respiration describes how a cell breathes. |
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| ____ 3. Fermentation produces ATP and lactic acid. |
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____ 4. Which of the following refers to all of the organisms in a particular area?
a. population c. community
b. ecosystem d. organelles |
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____ 5. Which of the following is NOT found in plant cells?
a. lysosome c. cell membrane
b. ribosome d. Golgi complex |
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____ 6. One of the world's largest single cells is a chicken egg. This shows that
a. a unicellular organism develops from a large cell.
b. not all cells are too small to be seen without a microscope.
c. the ecosystem depends on inactive cells to thrive.
d. a large cell is a specialized chicken-making cell. |
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____ 7. A person has about 200 different kinds of cells, each specialized to do a particular job. This means that
the person
a. does not need tissues. c. is multicellular.
b. does not need organs. d. is unicellular. |
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____ 8. Which of the following is an example of an organ?
a. a plant leaf c. heart
b. stomach d. All of the above |
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____ 9. The human body's largest organ is the
a. skin. c. lungs.
b. intestines. d. heart. |
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____ 10. What part of your body is dead tissue?
a. skin c. nails
b. hair d. All of the above |
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____ 11. Which of the following best describes the function of a plant's leaf?
a. sucking up water
b. capturing light energy to make food
c. getting minerals from the soil
d. only providing shelter for small animals |
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____ 12. An average-sized person's skin has a mass of about
a. 0.5 kg. c. 4.5 kg.
b. 2 kg. d. 10 kg. |
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____ 13. Which of the following best describes the function of the nervous system?
a. It breaks down food into very small particles so that it can be used by all of your body's
cells.
b. It transmits information back and forth between your brain and the other parts of your
body.
c. It takes oxygen into your body and expels carbon dioxide.
d. It keeps blood and oxygen flowing through all parts of your body. |
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____ 14. The first person to discover and name "the tiny boxes" seen under a crude compound microscope as cells
was looking at a
a. slice of cork. c. leaf from a fern.
b. piece of skin. d. feather. |
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____ 15. Leeuwenhoek was the first person to
a. see bacteria.
b. discover that yeast is a unicellular organism.
c. observe that human blood cells are flatter than bird blood cells.
d. All of the above |
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____ 16. Why is an elephant larger than a human?
a. It has larger cells than a person does.
b. It has a larger surface-to-volume ratio of its cells than a person does.
c. It has more cells than a person does.
d. None of the above |
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____ 17. When compared to a prokaryotic cell, a eukaryotic cell
a. has more types of organelles.
b. has DNA that is linear rather than circular.
c. stores its DNA in a nucleus rather than in the cytoplasm.
d. All of the above |
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____ 18. Which of the following best describes the characteristics of cells?
a. Prokaryotic cells are the world's smallest cells and probably were the first cells on Earth.
b. Eukaryotic cells have many membrane-covered organelles, allowing many different
chemical processes to occur at the same time.
c. All plants, animals, fungi, and protists are made up of eukaryotic cells.
d. All of the above |
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____ 19. Phospholipid molecules form the
a. cell membrane. c. ribosomes.
b. cell wall. d. DNA. |
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____ 20. Cellulose forms the
a. cell membrane. c. nucleus.
b. cell wall. d. mitochondria. |
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____ 21. A ____ keep(s) the cytoplasm inside and allow nutrients in and waste products out.
a. cell membrane c. nucleus
b. chloroplast d. mitochondria |
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____ 22. The cells of fungi have a ____ made of a chemical similar to that found in the hard covering of insects.
a. cell membrane c. nucleus
b. cell wall d. cytoplasm |
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____ 23. Almost every chemical reaction that is important to a eukaryotic cell's life involves some kind of
a. lipid. c. protein.
b. phospholipid. d. cellulose. |
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____ 24. The ____ store(s) the materials that will be used later to make ribosomes in the cytoplasm.
a. chloroplasts c. endoplasmic reticulum
b. nucleolus d. mitochondria |
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____ 25. The smallest and most abundant organelle is the
a. ribosome. c. endoplasmic reticulum.
b. nucleus. d. vacuole. |
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____ 26. Food molecules are broken down to release energy by the
a. ribosomes. c. mitochondria.
b. endoplasmic reticulum. d. chloroplasts. |
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____ 27. The ____ looks like flattened sacks stacked side by side or a cloth folded back and forth.
a. ribosome c. nucleus
b. endoplasmic reticulum d. cell membrane |
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____ 28. ____ are what make roses red and violets blue.
a. Ribosomes c. Golgi complexes
b. Vacuoles d. Lysosomes |
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____ 29. What causes the tail of a tadpole to shrink and disappear?
a. chloroplasts c. ribosomes
b. vacuoles d. lysosomes |
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____ 30. ____ destruction of cells may be one of the factors that contribute to the aging process in humans.
a. Ribosomal c. Mitochondrial
b. Lysosomal d. Bacterial |
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____ 31. If you want crispy lettuce for a salad, you need to fill up the lettuce's ____ with water.
a. ER c. lysosomes
b. vacuoles d. ribosomes |
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