Zadanie 1a
(i) Distinguish the structure of a green leaf cell from that of a typical fungal cell. (ii) Distinguish a plant nuclear chromosome from a typical bacterial chromosome.
Organization of a bacterial cell
Identify the main structures of a typical Gram-positive bacterium and distinguish them from eukaryotic structures.
Tę umiejętność sprawdza 12 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 12 Otwórz w wyszukiwarce z filtrami
Zadanie 2b
Suggest why the chromosome of Escherichia coli is not packaged into nucleosomes of this type.
- Materiał graficzny
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 3b
Distinguish the bacterial cells from cells of the lupin plant.
- Materiał graficzny
Zadanie 4
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 8
(a) Draw and fully label a bacterial cell. (b) Describe barriers that prevent pathogenic bacteria entering the body. (c) Explain how immunity to pathogenic bacteria develops.
Zadanie 1
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 1
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 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 1
Which conclusion follows from the observations of two cells? Feature | Cell R | Cell S Ribosomes | present | present Membrane-bound nucleus | present | absent Cell wall | absent | present Mitochondria | present | absent Chloroplasts | absent | absent A. R is a…
Zadanie 2b
Chromosomes package genetic information. Distinguish the typical chromosome structure of a bacterium from that of a eukaryotic nucleus.
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