Answer:
Endocytosis is a cellular process which helps the cell to bring large pr macromolecules inside the cell.
There are many known mechanisms of endocytosis but one of the best-understood mechanism is which involves the molecule called clathrin.
Clathrin is a protein which helps the endocytosis process by assisting the formation of the coated pit in the inner side of the cellular membrane.
When the inner surface when forms a vesicle and pinches off in the cytoplasm, then the clathrin allows the selection of the vesicles cargo and pits to reduce the surface area of the vesicle.
Thus, clathrin plays an important role in endocytosis.
Answer:
Osteoclast break down the calcified extra-cellular matrix. They secrete an acid that dissolves the inorganic component of the calcified matrix. After the osteoclasts remove the extra cellular matrix, osteoblasts deposit new bone tissue.
Explanation:
Answer:
Ground water flow
Explanation:
Watershed and Aquifers are connected to the water cycle by groundwater that flows under ground, so water is always under the ground.
We can actually deduce here that the actions that require ATP are: Both muscle contraction and muscle relaxation.
<h3>What is ATP?</h3>
ATP is actually known as Adenosine Triphosphate. It's known to be consumed because of its energy which is used during:
- muscle contraction
- muscle relaxation
- chemical synthesis
- ion transport
- nerve impulse propagation, etc.
ATP is used up during muscle relaxation in order to break bonds that are seen between myosin heads and actin filament.
Learn more about ATP on brainly.com/question/893601
#SPJ4