Answer:
wait give me a sec, I’m editing my answer
yeah..in my opinio, your right
Answer:
True ############################
Explanation:
Hashtags are to get past the letter minimum
Answer:
A
Explanation:
These are the correct layers in order of increasing altitude.
Answer:
The cytosol is best described as semifluid substance in which organelles are suspended.
Explanation:
Cells have different components. They can be divided in eukaryotic and prokaryotic. When it comes to the first type, they have a defined membrane for the nucleus. When it comes to the second ones, they have their nucleus in all the cytosol. <em>The cytosol is the space in the cell made of a semifluid subtance with different organelles suspended</em>.
Just to mention some of the organelles that can be there, we can find mitochondrion
, endoplasmic reticulum
, centriole
, among others.
Answer:
The correct answer will be options
1. The position of the tropomyosin threads shift
2. Exposing myosin binding sites
3. Allowing the myosin head to attach to the actin filament
Explanation:
Calcium plays an important role in the contraction of muscles especially in the formation of the cross-bridge between myosin and actin filaments.
In the presence of calcium, myosin head binds the actin filament as calcium binds to the troponin which changes the configuration of the troponin which releases the tropomyosin from the myosin-binding site on actin.
Once the myosin binding site is freed, myosin binds the site and causes muscle contraction due to ATP hydrolysis.
Thus, the selected options are the correct answer.
