Answer:
The answer to the question: The movement of ions through their channels require a discharge of the capacitance, is, true.
Explanation:
In order for cells, muscular and neuronal, to perform their activities, they need to generate action potentials, that will permit these activities. In order for an action potential to happen, a cell´s membrance must be charged, or rather, its polarity must be changed, so that the cell can be charged and then fire. Usually, cells remain in a resting membrane state, in which, the extracellular matrix remains positive, while the intracellular space remains positive, due to ion, and anion presence in either. In order for the action potential to happen, these polarities are reversed through a series of steps in which ions, particularly potassium and sodium, sometimes calcium, will enter and exit the cell´s membrane to change this polarity. But in order for this process to take place, first a current, or stimulation, must motivate the cell to start the process. The capacitance is the capability of a cell to be ready to be activated or de-activated when stimulated, meaning, to be charged and discharged, when necessary. In order for this capacitance to permit the process of action potential formation, it needs to be discharged first, and this is done through the stimulus, which orders the cell´s membrane to initiate depolarization by opening up the ion channels. This is why the answer is true.
Answer: True
Explanation:
Pancreas can be defined as an organ that acts as both endocrine gland and exocrine gland.
It is differentiated into two parts exocrine parts which includes acinar and duct tissues. This portion of the pancreas includes many juices and digestive enzymes that lies in the middle and covers 85% of pancreas.
It also consists of endocrine part which lies at the corners of the pancreas. It secretes hormones like insulin and glycogen.
Answer:
Explanation:
Left coronary artery - divides into two branches (the circumflex artery and the left anterior descending artery). Left anterior descending artery (LAD) - supplies blood to the front and bottom of the left ventricle and the front of the septum. Pulmonary veins - bring oxygen-rich blood back to the heart from the lungs.
Answer:
In this protein supplement there are 11 grams of protein which contribute with 44 kcalories. Therefore, the percentage of kcalories coming from protein in this particular supplement is 28,5 %.
Explanation:
Each gram of protein contributes 4 kcal (calories), so 11 grams of proteins x 4 kcal/gram = 44 kcal.
The total amount of kcalories is 154, so 44 kcal / 154 kcal x 100 = 28,5%.
When it comes to protein supplements is very important to realise how many proteins are being consumed and how many total calories this supplement has, for the simple reason that it might be not help to reach the protein goal for a particular individual, but instead, it might be providing too many calories that come from non-protein compounds.
Answer:
types 4,8,10
Explanation:
1.
Fibril-forming collagens (I, II, III, V, XI, XXIV, XXVII);
2.
Fibril-associated collagens with interrupted triple helices (FACITs) (IX, XII, XIV, XVI, XIX, XX, XXI, XXII). The FACITs do not form fibrils by themselves but they are associated with the surface of collagen fibrils.
3.
Network-forming collagens (IV, VIII, X) form a pattern in which four molecules assemble via their amino-terminal 7S domain to form tetramers while two molecules assemble via their carboxy-terminal NC1 domain to form NC1 dimers
4.
Membrane collagens (XIII, XVII, XXIII, XXV)
