Cells, Organelles, Mitosis Flashcards
What is the name of the fine surface extension that appears like short Fingerlike projections of the plasma membrane and is used for absorption?
Microvilli
What is the name of the external structure that presents as feathery, hairlike membrane extensions and allows for the movement of substances over the surface?
Cilia
What is the function of the plasma membrane?
Protective barrier
Selective transport
- water, ions, proteins, growth factors, signaling,molecules
if you see densely basophilic in the cytoplasm, what does this indicate?
High ribosome concentration aka lots of translation
What is the basement membrane?
Basal pole of epithelia on a thin sheet tissue
what is the purpose of basement membrane?
Serves as a regulatory barrier and anchor CT
If a nucleus is heterochromatic, what does it indicate?
Densely packed
Not actively packed
If a nucleus is Euchromatic, what does this indicate?
Chromatin is unpacked
Active transcription
Densely concentrated ribosomal RNA in a nucleus is called?
“bullseye” aka Nucleolus
What are the 4 mitotic stages?
Prophase
Metaphase
anaphase
Telophase