What you’ll learn7 learning objectivesChoose one objective for a focused lesson, or study the complete topic.1.2.1Eukaryotic cell organelles• Recognise and describe organelles in eukaryotic cells:- Cell surface membrane- Nucleus, nuclear envelope, nucleolus- Rough and smooth endoplasmic reticulum- Golgi body- Mitochondria (with small circular DNA)- Ribosomes (80S in cytoplasm, 70S in chloroplasts/mitochondria)- Lysosomes- Centrioles and microtubules- Cilia and microvilli- Chloroplasts (with small circular DNA)- Cell wall and plasmodesmata- Large permanent vacuole and tonoplast (plant cells)Syllabus objective1.2.2Cell images and drawings• Interpret photomicrographs, electron micrographs and drawings of plant and animal cellsSyllabus objective1.2.3Plant and animal cell comparison• Compare plant and animal cell structuresSyllabus objective1.2.4ATP in cells• State that cells use ATP from respiration for energy-requiring processesSyllabus objective1.2.5Prokaryotic cell features (bacteria)• Prokaryotic cell features (bacteria):- Unicellular, 1–5 µm diameter- Peptidoglycan cell walls- Circular DNA- 70S ribosomes- Absence of double-membrane organellesSyllabus objective1.2.6Prokaryotes vs eukaryotes• Compare prokaryotic and eukaryotic cell structuresSyllabus objective1.2.7Virus structure and envelope• Virus structure: non-cellular with nucleic acid core (DNA or RNA), protein capsid, some with phospholipid envelopeSyllabus objective