Biology

Which of the following statements is true?

Since all cells carry out cellular repiration, they contain mitochondria.

A cell cannot be subdivided into smaller units that maintain the living state.

Plant cells contain chloroplasts and no mitochondria while animal cells contain mitochondria and no choroplasts

The cells membrane's function is to prevent diffusion of any subatance into or out of the cell.

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  1. Oh my answer is B

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  2. your answer is correct

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  3. Thank you!

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  4. you welcome

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  5. . A biologist discovers a new unicellular organism and classifies it as a prokaryote. The cell is very small, contains a cell membranc, a cytoplasm, DNA is a nucleus, and no other cell organelles. Which statement below represents a correct response to the biologist's discovery and classification?

    The organism is a prokaryote, because it lacks cell organellessuch as mitochondria, Golgi apparatus, andendoplasmic reticulum.

    The organism is a prokaryote, because it is so small and simple in structure.

    The organism is a eukaryote, because it has a nuvleus.

    The organism is a eukaryote, because it has a cell membrane, a cytoplasm, and DNA

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  6. My answer is c

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  7. Can someone help me?

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  8. We don't have a biology tutor here. Sorry.

    You should make good use of https://www.khanacademy.org/-- click on Courses near the top left corner and choose the subjects you need help with.

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    Writeacher
  9. Thank you!

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  10. You're welcome.

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    Writeacher
  11. you are correct. here is an explanation:
    A mistake was made when the scientist decided to classifies it as a prokaryotic cell. Most of times eukaryotic refers to all unicellular or multi-cellular organisms. They have a nucleus and organelles (endoplasmic reticulum, Golgi apparatus, various plastids, mitochondria, etc.) delimited by membranes.

    Eukaryotes are distinguished from prokaryotes (such as bacteria) which, for their part, are devoid of these structures. The absence or presence of nucleus is how one can really differentiate eukaryotes from prokaryotic.

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  12. A cell is viewed under a microscope. It doubles every 20 seconds. What is most likely being viewed?
    A. binary fission****
    B. conjugation
    C. Diffusion
    D. Thermoregulation

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  13. A bacterial cell*****

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  14. B. A cell cannot be subdivided into smaller units that maintain the living state.
    C. The organism is a eukaryote, because it has nucleus.
    A. Nucleus, chromatin
    D. Water would flow into them because they are hypertonic to the external environment.
    B. Because water provides electrons.
    D. None
    C. ATP, NADH, and FADH2
    C. Glycolysis, pyruvate oxidation, Krebs cycle, electron transport.
    D. Eighteen times more ATP is formed during aerobic respiration than during anaerobic respiration.
    D. Glucose

    Enjoy, cause they usually don't change quizes

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  15. LESSON 12 UNIT 3 - CELLS OVERVIEW QUIZ
    1. B
    2. C
    3. A
    4. D
    5. B
    6. D
    7. B
    8. C
    9. D
    10. D
    100% just took the quiz :))

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  16. gallavich is correct, ty <3

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  17. connexus is 90 percent on pearson connexus

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  18. 1b
    2c
    3a
    4d
    5a
    6d
    7b
    8b
    9b
    10a

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  19. ty A1234

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  20. a1234 is wrong

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  21. gallavich is corect for2020

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