Answer:
C. Exocytosis uses transport vesicles to export materials from the cell
Explanation:
Exocytosis is the reverse process of endocytosis including the expulsion of the material that is membrane -encapsulated (material is packaged in the vesicles ) inside the cell out of the cell. It has following steps :
1) The cell forms a vesicle around a material which is to be expelled.
2) The vesicle is transported to the cell membrane.
3) The vesicle membrane fuses with the cell membrane and releases the contents from the cell.
Hence option C. Exocytosis uses transport vesicles to export materials from the cell IS THE RIGHT OPTION.
Answer:
A. Actin filaments and microtubules
B. intermediate filaments
Explanation:
Actin filaments and microtubules are two major building blocks that form part of the cytoskeleton in all eukaryotic cells. Both actin filaments and microtubules play a fundamental role in the dynamics of the cytoskeleton, and they are involved in many essential cellular processes including, among others, mitosis, cytokinesis, intracellular transport, cell signaling, etc. Moreover, intermediate filaments are very stable structures found in animal cells, where they extend from a ring around the cell nucleus to the plasma membrane in order to provide consistency and shape to the nuclear envelope.
Answer:
Any compound/molecule that contains carbon is considered an organic molecule. This is because carbon is considered the basis for all life on earth. Therefore, the answer is organic.
The molecules doesn't need energy to cross through.
The diffusion doesn't need protien, the molecules pass between phospholipids by passes protien. It moves smaller molecules. Facilitated need protien also hormone, and larger molecules.
I wish it makes sense.
