Test Yourself

Select correct statements:

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cell wall covers surface of human cells (N)
most of eukaryotic cell organelles are covered by a membrane (Y)
euchromatin is a condensed genetic material (N)
chromatin structure consists of a DNA strand and basic proteins (Y)

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basic human cell organelles include: mitochondria, ribosomes, plastids, endoplasmic reticulum and lysosomes (N)
inner surface of mitochondria is increased by mitochondrial cristae (Y)
mitochondria are semiautonomic organelles with two membranes (Y)
ribosome is composed of three subunits (N)

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smooth endoplasmic reticulum is the site of protein synthesis (N)
golgi apparatus provides post-translational processing of protein molecules and formation of secretory vesicles (Y)
lysosomes do degradation of useless parts of our cells (Y)
we can distinguish these cytoskeletal structures: microtubules, microfilaments and intermediate filaments (Y)

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intermediate filaments are composed of actin molecules (N)
microfilaments participate in muscle movement (Y)
between intermediate filaments belong neurofilaments, desmin and vimentin (Y)
microtubules enable intracellular transport (Y)