Krebs cycle occurs in the ___ of a eukaryotic cell. Question 27 answers matrix of the mitochondrion cristae membranes of the mitochondrion nucleus cytoplasm

Answers

Answer 1

Answer: The answer to the question stated above is matrix of the mitochondria or matrix of the mitochondrion
Krebs cycle occurs in the matrix of the mitochondria of a eukaryotic cell.
Additional information:
>matrix of the mitochondria is the fluid filled interior of the mitochondria.

Answer 2

Answer:

Final answer:

The Krebs Cycle occurs in the matrix of the mitochondrion of a eukaryotic cell, which is a part of the process of cellular respiration, generating energy for the cell.

Explanation:

The Krebs cycle, also known as the citric acid cycle or the tricarboxylic acid (TCA) cycle, takes place in the matrix of the mitochondrion of a eukaryotic cell. This cycle is a crucial part of cellular respiration, the process by which cells generate energy. During the Krebs cycle, the pyruvate molecules derived from glucose are oxidized and, in turn, produce ATP (adenosine triphosphate), the main source of cellular energy, and other high-energy compounds. The matrix of the mitochondrion provides the necessary environment and enzymes for this cycle to occur effectively.

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Does dna sythesis occur during interphase or mitosis

Answers

Yes, for eukaryotes which have a nucleus and therefore have to do nuclear division (mitosis), DNA replication occurs during a specific period of interphase. Protein synthesis, which includes transcription and translation, occurs throughout interphase. But neither replication nor protein synthesis occur during M-phase.

Why is pancreas considered as a heterocrine gland

Answers

the pancreas is considered a heterocrine gland because it has both endocrine and exocrine functions.

the pancreas functions as an endocrine gland by secreting glucagon and insulin

the pancreas functions as an exocrine gland by secreting pancreatic juices to the duodenum.

Which of the following describes a positive feedback loop?When blood sugar is low, the body sends hormones that increase blood sugar.
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.

Answers

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.

Final answer:

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.

Explanation:

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.