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GarryVolchara [31]
3 years ago
11

The myocardium receives its blood supply from the coronary arteries. True or False

Biology
1 answer:
Cerrena [4.2K]3 years ago
7 0

Answer:

The statement is true.

Explanation:

The myocardium is the muscle tissue of the heart, a muscle responsible for pumping blood through the circulatory system through contraction. It receives a part of the large volume of blood that passes through the atria and ventricles. A system of arteries and veins (coronary circulation) provides the myocardium with oxygen-rich blood and allows the return of venous or oxygen-poor blood to the right atrium. The right coronary artery and the left coronary artery are the branches of the aorta responsible for the blood supply.

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Zoonotic disease _________. A. is caused by sub organismal pathogens such as viruses, viroids, and prions only B. is caused by p
RUDIKE [14]

Zoonotic disease  is caused by sub organismal pathogens such as viruses, viroids, and prions only

<h3>What is Zoonotic disease?</h3>

A pathogen (an infectious agent, such as a bacterium, virus, parasite, or prion) that has transferred from an animal (often a vertebrate) to a human causes a zoonosis or zoonotic disease, which is an infectious disease of humans. Usually, the initial infected person spreads the infectious agent to at least one additional person, who then infects additional people.

Zoonoses are common modern diseases like salmonellosis and the Ebola virus sickness. Early in the 20th century, HIV was a zoonotic disease that was spread to people, but it has since evolved into a distinct illness that only affects humans. Despite the fact that many bird flu and swine flu strains are zoonoses and occasionally recombine with human strains of influenza, the majority of influenza strains that infect people are human diseases.

To learn more about Zoonotic disease from the given link:

brainly.com/question/26431673

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3 0
1 year ago
Proteins destined for the following locations are sorted in the trans-Golgi:
taurus [48]

Answer:

A

Explanation:

Golgi apparatus is an organelle in eukaryotic cells that stores and modifies (might include addition of sugar groups) proteins and lipids for certain functions and prepare them for transport to other parts of the cell.

In the Endoplasmic reticulum, proteins fold into into their correct shape. Some of them are transported to the Golgi apparatus in membrane vesicles. Some proteins need to do their jobs in the Golgi (they are said to be Golgi-resident). They are transported from the golgi appratus to their final destinations through a secretory pathway. It involves sorting proteins into different kinds of transport vesicles, which emanate from the trans Golgi network and deliver their contents to the appropriate cellular locations.

Proteins that are membrane embedded are conveyed to the plasma membrane (integral membrane proteins) by constitutive secretion. Proteins can divert from constitutive secretion pathway and be targeted towards other destinations such as lysosomes (as lysosomal proteins) and regulated secretion from cells (to the cell exterior).

8 0
3 years ago
What is the relationship between a food chain and an energy pyramid?
3241004551 [841]

Answer:

A food web is multiple food chains and an energy pyramid shows how energy moves through trophic levels.

Explanation:

3 0
3 years ago
Need the answer quick please thanks
ohaa [14]

Answer:

id k im not in high school

Explanation:

4 0
2 years ago
Dinitrophenol increases the permeability of the lipid bilayer of the inner mitochondrial membrane to protons. Assuming that all
Zigmanuir [339]

Answer:

The correct answer is : C .It will decrease ATP production because fewer protons will be able flow down through ATP synthase.

Explanation:

  • Oxidative Phosphorylation is a process which involves two steps:  
  1. Transport of electrons from the reduced compounds like NADH (Nicotinamide adenine dinucleotide hydrogen) and FADH₂ (Flavin adenine dinucleotide dihydrogen) through the electron transport complexes, located in the inner mitochondrial membrane, to oxygen for the generation of water molecules.
  2. Synthesis of ATP or adenosine triphosphate from ADP or adenosine diphosphate and inorganic phosphate by an enzyme called ATP synthase which is located in the inner mitochondrial membrane. This enzyme harnesses energy by carrying protons from the inter-membrane space into the mitochondrial matrix and in the process produces ATP.
  • Oxidative phosphorylation takes place in the mitochondria, especially involving the inter membrane space, inner membrane and mitochondrial matrix
  • During the transport of electrons through the protein complexes (I, II, III, IV) of the electron transport chain a proton gradient is generated across the inner mitochondrial membrane.
  • The proton gradient is such that the concentration of protons is more in the inter-membrane space and less in the matrix of the mitochondria.
  • This proton gradient provides the energy to the ATP synthase for the synthesis of ATP.
  • Dinitrophenol is responsible for making the inner mitochondrial membrane permeable to protons. As a result protons can directly diffuse through the inner mitochondrial membrane from the inter-membrane space into the mitochondrial matrix equalising the concentration of protons across the inner mitochondrial membrane. This causes distortion in the proton gradient.  Hence, protons are no longer available for the ATP synthase to operate and synthesise ATP.
4 0
3 years ago
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