Pericardial sac also known as pericardium is a cone-shaped sac made of fibrous tissue surrounding the heart and the blood vessels. It has two parts: the inner coat which is double-layered supporting the heart; and the outer coat which is solid and heavily built attached to the diaphragm and the rear part of the breastbone.
Answer:
c) Endoplasmic reticulum, ribosomes, Golgi apparatus
Explanation:
The process of producing and delivering enzymes typically involves the endoplasmic reticulum (ER) where ribosomes are involved in protein synthesis. The newly synthesized enzymes then move to the Golgi apparatus for further processing and packaging before being delivered to their destinations.
The sequence of organelles involved in enzyme production and delivery in your pancreas include: endoplasmic reticulum, ribosomes, and Golgi apparatus. These organelles work in a conjunct to synthesize the enzymes, modify and package them, and finally expel them to be used in the digestive system.
The sequence of organelles involved in enzyme production and delivery in your pancreas follows this order: endoplasmic reticulum, ribosomes, and Golgi apparatus. In the first step, the ribosomes attached to the endoplasmic reticulum are the site of protein synthesis, and in this case, enzyme synthesis. Following the synthesis of these enzymes, they are sent to the Golgi apparatus. Here, they are modified, packaged, and tagged for delivery. The enzymes are then dispatched from the cells through exocytosis into the pancreatic juices which then get released into the digestive system.
The organelles involved in producing and getting enzymes into the digestive system, specifically in the pancreas, are the endoplasmic reticulum, ribosomes, and Golgi apparatus. Ribosomes in the rough endoplasmic reticulum (RER) synthesize the enzyme proteins, which are then modified and packaged in the Golgi apparatus. Finally, the Golgi apparatus sends the enzymes to other areas of the cell or exports them through exocytosis.
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When the body senses that the heart rate is very high, it secretes hormones that decrease the heart rate.
When a pregnant woman begins to go into labor, the body sends hormones that increase the intensity of the labor contractions.
When someone is exercising intensely, the body sends hormones that increase oxygen supply for cellular respiration.
Answer;
An example of positive feedback loop is;
-When a pregnant woman begins to go into labor, the body sends hormones that increase the intensity of the labor contractions.
Explanation;
-Feedback loops are therefore the process whereby a change to the system results in an alarm which will trigger a certain result. The result will then either increase the change to the system or reduce it to bring the system back to normal.
-Feedback loops are important because they allow living organisms to maintain homeostasis (maintenance of internal environment of the body constant).
-A positive feedback loop occurs in nature when the product of a reaction leads to an increase in that reaction. It moves a system further away from the target of equilibrium, by amplifying the effects of a product or event and occurs when something needs to happen quickly.
A positive feedback loop in biology is a process in which the end product of an action stimulates more of the same action to occur. An example is during child birth, where hormone release intensifies labor contractions, leading to further hormone release. This continues until the process is complete, differentiating from negative feedback loops which work to maintain homeostasis by reversing a process.
A positive feedback loop in biological systems is a process in which the end products of an action cause more of that action to occur. This contrast with a negative feedback loop, which works to stop a process in order to bring the body back to its set point. One of the examples provided is a classic example of a positive feedback loop: when a pregnant woman begins to go into labor, the body sends hormones that increase the intensity of the labor contractions.
This is a positive feedback loop because the contractions that begin labor lead to the release of a hormone (oxytocin) that intensifies those contractions, which then causes more hormones to be released, and so on until the baby is born.
Other instances, such as when blood sugar is low or the heart rate is high, are illustrations of negative feedback loops, where the body works to maintain homeostasis by reversing a process.
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B phosphate group is removed from ADP to form ATP.
c phosphate group is added to ADP to form ATP.
D phosphate group is removed from ATP to form ADP.
Answer:
the answer is D: A phosphate group is removed from ATP to form ADP.
Explanation:
I got it right on the exam
The three parts are amino group, carboxyl group, and R group,
Amino acids are the basis of the constitution of proteins and other peptides, even if they are not the only constituents (see, for example, heme, prosthetic group of hemoglobin). This article aims to review the main characteristics common to all amino acids, as well as the particular properties of the main amino acids found in living molecules.
The molecule has two ionizable groups: one acid (COOH <-> COO - + H +), the other basic (NH 2 + H + <-> NH3 +). The carbon atom to which the amine-NH 2 group is attached and the carboxylic acid-COOH group is called alpha carbon convention.
The group R corresponds to a variable radical depending on the amino acid in question. It is therefore he who determines the nature of the amino acid since the rest is invariant.
the BMI should be 20.8
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The statement which best describes cancer cells is that: D. They are not regulated by contact inhibition.
Cancer can be defined as the uncontrolled division of certain bodycells, which then invade the surrounding tissues of the body and interfere with the body's normal function.
Basically, cancer cells are caused when various body cells grow and divide more than they are required or they fail to when necessary (required).
Generally, some examples of cancer are:
The growth and division of body cells is controlled by cyclin-dependent protein kinases (Cdks) and regulated by subunits called cyclins during contact inhibition.
In conclusion, cancer cells are caused when body cells are not regulated by contact inhibition, which may be due to exposure to extremely dangerous radioactive substances such as gamma ray, uranium etc.
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