SL/HL Topic B2.2 Organelles and compartmentalisation

1#

1. Why is the cell wall not con.g: 33l;y xmgt1cr xvhsidered to be an organelle?

A. It contains cellulose.

B. It is too big.

C. It is not surrounded by a membrane.

D. It contains DNA.

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2#

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2. Which of the following units is the most useful as the unit of size of a mime 0p(:g uzlviw1,nj6tochondrio(w plv,gen jz1 6ui0m:n?

A. $A$

B. µm.

C. mm.

D. nm.

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3#

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3. Which of the following apparatus and tecle yrmm: cz(j8b2l2(ihniques was used in determining the functil22ji8ez( ym brl:( cmon of individual organelles?
I. Fractionation.
II. Ultracentrifugation.
III. Electron microscopy.
IV. Light microscopy

A. All of the above.

B. I, II and IV only.

C. I only.

D. II only

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4#

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4. Which of the following are adv9ve;hm 6 09i7n lrbrdlt fu9k/antages of the presence of a nuclear membrane surrounding the n9v9telmir u6k/7nl0hrf9d b;ucleus of eukaryotic cells?
(1). Separation of the DNA from the cytoplasm.
(2). Separation of gene transcription from translation.
(3). Concentration of enzymes for DNA replication and transcription.
(4). Increased efficiency of nuclear division.

A. All of the above

B. I, II and IV only.

C. I and IV only.

D. II and III only.

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5#

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5. List four organelles that would be found in a photosynthetic cell of a leaf 7ip nkd b6j.8y7/wowl.

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6#

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6. Explain the advantage to cellular function of organelles being surrounded by ) yk 777h8+unpow taeb9gj),qjmin0 ha membrane. Illustrate your answer with an exampl8)a e pjkbujq)hi77o +ng, nhw79myt0e.

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7#

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7. The image shows avv. z6 xpl:xhv:vq.r0 mitochondrion.

Outline 3 ways in which a mitochondrion is adapted to its function.

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