Cell Structure and Function

A light microscope can be used to view

frog eggs, prokaryotes, and eukaryotes

Eukaryotes include

insects, protists, animals, plants, and fungi

unviersal cell features include

ribosomes, cytosol, and plasma membrane

prokaryote features

nucleoid and circular chromosomes

eukaryote features

nucleus, nucleolous, and linear chromosomes

central dogms of molecular biology applies to

insects, animals, plants, bacteria, and archaea

nucleolous is the site of

rRNA synthesis

true or false: all cells have ribosomes

true

true false: the entire ER has ribosomes

false, only the rough ER

the endomembrane has how many structures

7

the ER accounts for what percentage of the total cell membrane

over 50%

true false: the ER is continuous with the nuclear envelope

true

function of the smooth ER

lipid synthesis, detoxify drugs, stores calcium ions

rough ER functions

secrete glycoproteins and acts as a membrane factory

what is the name of the flattened golgi sacs

cisternae

lysosome functions

digesting food and recylcling mitochondria

central vacuole purpose

plays a role in growth of plant cells

the mitochondria is the site of

cellular respiration

true or false: photosynthesis only occurs in plants

false

true or false: cellular respiration does not occur in plants

false

what do mitochondria and chloroplasts have similarities with

bacteria

mitochondria have

cristae, free ribosomes, and circular DNA molecules

true or false: cillia and microvilli are found in animal cells

true

chloroplasts have

granum, stroma, plastids, and circular DNA

true or false: cillia is non motile and functions in absoprtion

false

true or false: microvilli is non motile and functions in absoprtion

true

true or false: cillia is found in the small intestine

false

true or false: goblet cells can be found in the small intestine and respiratory

true

true or false: mitochondrial density determines what a cell does

true

what two tissues have the highest density of mitochondria

cardiac and skeletal

plant cell walls maintain

turgor pressure

true or false: plants share water and solutes through the apoplastic pathway

false