Answer:
D. All of the above
Explanation:
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
Cardiac output can be defined as the volume of blood that is being pumped by the mammalian heart through the left and right ventricle per unit time (minute).
The following conducting systems of the heart cause the ventricles to contract;
I. Atrioventricular (AV) node: it's a component of the electrical conduction system of the mammalian heart located in the Koch triangle which connect the ventricles and atria electrically.
II. Atrioventricular (AV) bundle: it's a specialized tissue that transmits electrical impulse from the atrioventricular (AV) node to the Purkinje fibres of the ventricles.
III. Purkinje fibers: it's a network of specialized cells that comprises of glycogen and they transmit cardiac action potentials in a rapid manner from the atrioventricular (AV) bundle to the myocardium of the ventricles.
Furthermore, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.
Answer:
The ground tissue found in plants I'll called parenchyma tissue
To identify how your experiment represents the carbon cycle analyze how each Earth's sphere participates in the cycle and relate it to the experiment.
<h3>What is the carbon cycle?</h3>
This is a natural phenomenon on Earth in which carbon circulates through different spheres.
<h3>What is the role of each sphere?</h3>
- Atmosphere: Contains gaseous carbon as carbon dioxide.
- Biosphere: Plants use carbon and release oxygen; on the other hand, animals produce carbon as a result of the breathing process.
- Geosphere: Contains carbon, which is the result of processes such as organisms' decay.
- Hydrosphere: Contains dissolved carbon.
<h3>How do you relate the experiment to the natural process?</h3>
- Identify the components of your experiment and the way they interact with carbon.
- Compare this function to the function of the speheres.
- Relate the experiment and natural model.
Note: This question is incomplete because there is not information about the experiment; due to this, the answer is based on general knowledge.
Learn more about carbon cycle in: brainly.com/question/1627609
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A resting plasma membrane has carrier proteins on its surface. Energy derived from ATP is usually utilized by these carriers to change their shape in order to carry different molecules into or out of the cell. The sodium pump is a membrane protein which uses energy from ATP to carry sodium ions out of the cell and allow potassium ions into the cell to replace sodium.
Answer:
The enzyme would be deactivated.
Explanation:
Enzymes are usually deactivated by low temperatures.
<em>Enzymes are proteinous in nature, function by catalyzing biological reactions, and have a particular range of temperatures where they function optimally. Above these temperatures, the catalyzing attribute of enzymes gradually declines till they are denatured by high temperature and below the optimal temperature, their catalyzing attributes also decline. However, instead of being denatured by very low temperatures, they become deactivated instead.</em>
