chapter 4 objectives Flashcards
6 structures not present in all eukaryotic cells
Cilia, Flagella, Glycocalyx, the Cell wall, Chloroplasts
flagellar structures of bacteria, eukaryotes, and
archaea
bacterial flagella –>smaller
eukaryotic–> 10x thicker
9 pairs +2 in center
eukaryotic vs bacterial
cytoplasmic membranes
eukaryotic contain sterols
main structural components of a nucleus
nuclear envelope, pores, 2 parallel lipid membranes
importance of ribosomes
site of protein synthesis
three main fibers of the cytoskeleton
actin filaments, intermediate filaments, and microtubules
ribosomes bacteria vs. eukaryotic
Eukaryotic ribosomes are larger in size as 80s where as bacterial ribosomes are 70s
flagella
Long sheathed cylinder containing regularly spaced microtubules. The function is for motility
cilia
smaller and more numerous than flagella. The purpose of cilia is for motility
glycocalyx
Composed of polysaccharides. They are meant for protection, adherence, and signal reception
cell wall
They are rigid and provide structural support and shape in fungi.
cytoplasmic membrane
made up of a bilayer of phospholipids in which protein molecules are embedded. serving as selectively permeable barriers
cytoskeleton
permitting shape changes and movement. Made up of actin filaments, intermediate filaments, and microtubules
nucleus
most prominent DNA
nuclear envelope
protection and permeability
nucleuous
RNA synthesis
chromosomes
linear DNA
ribosomes
protein synthesis
endoplasmic reticulum
rough: ribosomes attached, transport materials
smooth: no ribosomes, storage
golgi apparatus
sort, package, send
mitochondria
powerhouse, ATP, provides energy
two groups of fungi
molds and yeast
three features of fungal anatomy
Yeast, Hyphae, Pseudo hyphae
budding yeast
single celled, has a round to oval shape, and reproduces asexually
