Zadanie 1b
Compare and contrast cytoplasmic ribosomes in a liver cell with those in a bacterium.
Organization of a bacterial cell
Identify the main structures of a typical Gram-positive bacterium and distinguish them from eukaryotic structures.
Tę umiejętność sprawdza 19 zadań wzorowanych na arkuszach IB z lat 2022–2026.
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Zadanie 7
Cell organization enables specialized reactions, and life cycles transmit inherited information. (a) Outline three structural differences between eukaryotic and prokaryotic cells. (b) Outline advantages of dividing a cell into compartments. (c) Explain sexual…
Zadanie 3b
The diagram is a simplified model of a nerve cell communicating with a muscle fibre. List two structures present in this neuron and also in a typical bacterium.
- Materiał graficzny
Zadanie 3c
A typical bacterium is compared with a typical animal cell. Outline one structural difference between them.
Zadanie 9
Which structure is present in both a typical bacterium and a typical animal cell? A. A chloroplast B. A membrane-bound nucleus C. A cellulose wall D. Ribosomes
Zadanie 1b
Compare and contrast their cellular components.
Zadanie 2b
(i) State one organelle characteristic of plant cells but absent from typical animal cells. (ii) State one organelle present in both prokaryotic and eukaryotic cells.
Zadanie 3c
Distinguish the main chromosome of a bacterium such as Escherichia coli from nuclear chromosomes of a typical eukaryote.
- Materiał graficzny
Zadanie 1c
A cheek-cell preparation also contains single cells much smaller than the epithelial cells. Predict what these smaller cells could be, giving a reason.
Zadanie 2
The outline represents a prokaryotic cell. Draw and label its internal structures.
- Materiał graficzny
Zadanie 3
A bacterial population becomes less susceptible to an antibiotic after many generations of exposure. (i) State two structural features distinguishing a typical bacterial cell from a typical eukaryotic cell. (ii) Explain how resistance can become common in this…
Zadanie 5
Compare a bacterial cell with a typical animal cell. Which contrast is valid? A. Only the bacterium has ribosomes B. Only the animal cell contains hereditary DNA C. Both must have a cellulose cell wall D. The animal cell has membrane-bound internal…
Zadanie 7a
Microbial cultures can be used to manufacture useful substances. State one advantage of using microorganisms for this purpose.
Zadanie 2
Which pair of labels is correctly matched to the structures in this model bacterium? A. R: ribosome; Q: plasma membrane B. S: mitochondrion; P: nuclear envelope C. Q: cellulose wall; R: chloroplast D. P: nucleolus; S: secretory vesicle
- Materiał graficzny
Zadanie 2
Which feature is characteristic of eukaryotic organization compared with a typical bacterial cell? A. A plasma membrane surrounding cytoplasm B. Ribosomes used to make proteins C. Membrane-bound internal compartments such as a nucleus D. DNA containing the…
Zadanie 2
Which component of a typical animal cell is absent from a bacterial cell? A. Cytoplasmic ribosomes B. A plasma membrane C. Mitochondria D. Genetic material made of DNA
Zadanie 4a
Consider a typical motile prokaryotic cell. State one function of its flagellum and one function of its ribosomes.
Zadanie 4a
Consider a typical motile prokaryotic cell. State one function of its flagellum and one function of its ribosomes.
Zadanie 1
Identify P and Q in this bacterial cell. A. P: membrane-bound nucleus; Q: lysosome B. P: nucleoid; Q: 70S ribosome C. P: mitochondrion; Q: storage vesicle D. P: folded chloroplast; Q: 80S ribosome
- Materiał graficzny