Biodiversity and interdependence
I understand how animal and plant species depend on each other and how living things are adapted for survival. I can predict the impact of population growth and natural hazards on biodiversity.
Body systems and cells
I can explain how biological actions which take place in response to external and internal changes work to maintain stable body conditions.
Through investigation, I can explain how changes in learned behaviour due to internal and external stimuli are of benefit to the survival of species.
Through investigation, I can compare and contrast how different organisms grow and develop.
Through evaluation of a range of data, I can compare sexual and asexual reproduction and explain their importance for survival of species.
I can use my understanding of how characteristics are inherited to solve simple genetic problems and relate this to my understanding of DNA, genes and chromosomes.
I can debate the moral and ethical issues associated with some controversial biological procedures.
CCEA AS and A Level Biology
Describe the ultrastructure of eukaryotic and prokaryotic cells:
prokaryotic cells (e.g. bacteria) as those without nuclei, mitochondria or endoplasmic reticulum and possessing naked, circular DNA, small ribosomes, possibly plasmids, and a cell wall
eukaryotic cells as those with a membrane-bound nucleus, chromosomes (helical DNA with a histone protein coat), mitochondria, endoplasmic reticulum, ribosomes, Golgi apparatus, vesicles, lysosomes, microtubules.
Understand the structure and function of eukaryotic cell components.
Compare eukaryotic cell structure:
plant cells as protoplasts bordered by an extracellular cellulose cell wall and possessing chloroplasts and vacuole(s); neighbouring cell walls adhered by a middle lamella (a sticky material composed of calcium pectate)
fungal cells as protoplasm (often multinucleate) bounded by an extracellular wall of chitin
animal cells as lacking chloroplasts and a cell wall and possessing centrioles.