_Protists, prokaryotes, eukaryotes Flashcards
(39 cards)
is algae unicellular or multicellular?
They’re a diverse group, they can be either
What is an algae’s body like?
they lack a well-defined body so structures like roots, stems and leaves are absent
How does algae reproduce?
can reproduce sexually and asexually
What is algae?
They’re photosynthetic eukaryotic organisms
What are 3 examples of algae?
chlamydomonas, volvox, spirulina
is algae harmful?
no, but certain species can form algal blooms (too much algae in one place) and be detrimental to health and environment
What can algae be used for?
can photosynthesize - produce oxygen
fertiliser, biofuel, food colour
What are eukaryotic cells?
animal, plant, fungal, protist cells
What does a eukaryotic cell contain?
a nucleus and cell organelles
cell functions compartmentalised (separated) into different ogranelles
What is the size and complexity of an eukaryotic cell like?
large and complex
What are prokaryotic cells?
bacteria and archaea
What does a prokaryotic cell contain?
no nucleus or organelles (little compartmentalisation)
What is the size and complexity of a prokaryotic cell like?
small and simple
what does bacteria act as?
decomposer, make humans sick, make food
Where does bacteria live in our body?
gut and skin
What does bacteria in our gut do?
helps digest food
What does bacteria on our skin do?
Protects us from harmful bacterial infections
What is cyanobacteria?
They’re special because they can perform photosynthesis
What is photosynthetic bacteria the precursor to?
modern-day chloroplast organelles
(Prokaryote vs Eukaryote)
which has a nucleus?
prokaryote
(Prokaryote vs Eukaryote)
which has membrane-bound organelles?
prokarote
Are prokaryotes unicellular or multicellular?
unicellular
Are eukaryotes unicellular or multicellular?
mostly multicellular, some unicellular
What’s the DNA form of a prokaryote?
circular