Chp. 4 Flashcards
Prokaryotes depend on _____ to obtain some materials and to get rid of wastes
diffusion
bacteria that lack fimbriae are less likely to
adhere to cell surfaces
which of the following is surrounded by two phospholipid bilayers
the nucleoplasm
which of the following is both in eukaryotic and prokaryotic cells
ribosomes
which of the following is not a component of the endomembrane system
mitochondrion
Congenital disorders of glycosylation are a growing class of rare diseases. Which organelle would be most commonly involved in the glycoprotein disorder portion of the group?
Golgi apparatus
which of the following have the ability to disassemble and reform quickly
microfilaments and microtubules
which of the following are only in plant cells
plasmodesmata
Diseased animal cells may produce molecules that activate death cascades to kill the cells in a controlled manner. Why would neighboring healthy cells also die?
the death molecule passes through gap junctions
the key components of desmosomes are cadherins and
intermediate filaments
protein fiber network that collectively maintains the cell’s shape, secures some organelles in specific positions, allows cytoplasm and vesicles to move within the cell, and enables unicellular organisms to move independently
cytoskeleton
organelle in an animal cell that functions as the cell’s digestive component; it breaks down proteins, polysaccharides, lipids, nucleic acids, and even worn-out organelles
lysosome
the cytoskeleton system’s narrowest element; it provides rigidity and shape to the cell and enables cellular movements; also called actin
microfilament
cellular organelles responsible for carrying out cellular respiration, resulting in producing ATP, the cell’s main energy-carrying molecule
mitochondria
phospholipid bilayer with embedded (integral) or attached (peripheral) proteins, and separates the cell’s internal content from its surrounding environment
plasma membrane
