8) How do substances enter and leave cells? What are the 3 types of endocytosis?

Question

8) How do substances enter and leave cells? What are the 3 types of endocytosis?

9) What are the different types of cytoskeletal filaments and how are they important?

16) What cell junctions are present in the lateral and basal membranes of cells to provide mechanical strength? What are the molecular components of these junctions?

What cell junctions are present in the lateral surface of cells to allow communication between these cells? What is transported through these junctions? What are the molecular components of these junctions? 2

18) What is meant by the terms basement membrane? What type of tissue makes up the basement membrane?

Explanation / Answer

1) Two main types of endocytosis are distinguished on the basis of the size of the endocytic vesicles formed. Endocytosis, by which cells take up macromolecules, particulate substances. Specialized Phagocytic Cells CanIngest Large Particles.Many of these receptors, like the LDL receptor, enter coated pits irrespective.

2) their are three different types of cytoskeletal filaments a) Intermediate filaments, b) Microtubules, c) Actin filaments.

Intermediate filaments we have already encountered is the keratin filaments in skin and other epithelial cells. Some types of keratin are involved in making up skin, hair and nails.

Microtubules function like tracks within the cell

Actin filaments help in providing shape to the cell
They function as tracks for intracellular traffic, like microtubules.
They are involved in muscle contraction.

3) Anchoring junctions mechanically attach cells (and their cytoskeletons) to their neighbors. From there, these nutrients diffuse into small blood vessels to provide. This transcellular transport depends on two sets of membrane-bound . The other set is confined to the basolateral (basal and lateral) surfaces of the cell

4) The organization of metazoa is based on the formation of tissues and on tissue-typical functions and thesein turn are based on cell–cell connecting.

5) The basal lamina (lamina - layers), also known as the basement membrane, is having limits to contact between epithelial cells and the other cell types in the tissue and acts and these proteins can bind to each other to make a highly crosslinked to see with conventional light microscopy and is usually only clearly defined

Related Questions

Navigate

• Browse (All)
• Browse 8
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.