<P> Most animal cells have one MTOC during interphase , usually located near the nucleus , and generally associated closely with the Golgi apparatus . The MTOC is made up of a pair of centrioles at its center , and is surrounded by pericentriolar material ( PCM ) that is important for microtubule nucleation . Microtubules are anchored at the MTOC by their minus ends , while their plus ends continue to grow into the cell periphery . The polarity of the microtubules is important for cellular transport , as the motor proteins kinesin and dynein typically move preferentially in the `` plus '' and `` minus '' directions respectively , along a microtubule , allowing vesicles to be directed to or from the endoplasmic reticulum and Golgi apparatus . Particularly for the Golgi apparatus , structures associated with the apparatus travel towards the minus end of a microtubule and aid in the overall structure and site of the Golgi in the cell . </P>
<P> Most animal cells have one MTOC during interphase , usually located near the nucleus , and generally associated closely with the Golgi apparatus . The MTOC is made up of a pair of centrioles at its center , and is surrounded by pericentriolar material ( PCM ) that is important for microtubule nucleation . Microtubules are anchored at the MTOC by their minus ends , while their plus ends continue to grow into the cell periphery . The polarity of the microtubules is important for cellular transport , as the motor proteins kinesin and dynein typically move preferentially in the `` plus '' and `` minus '' directions respectively , along a microtubule , allowing vesicles to be directed to or from the endoplasmic reticulum and Golgi apparatus . Particularly for the Golgi apparatus , structures associated with the apparatus travel towards the minus end of a microtubule and aid in the overall structure and site of the Golgi in the cell . </P>
where are the microtubules located in an animal cell
where are the microtubules located in an animal cell
near the nucleus
near the nucleus