It is now well established that oxidation of other energy substrates, such as ketones and branched chain amino acids (BCAAs), can also contribute to energy production in the heart, despite the fact that mitochondrial fatty acid and carbohydrate oxidation is the major source of ATP production in the heart.
Cells must evaluate their metabolic condition in response to a dynamic nutritional environment to determine whether to grow, survive, or perish. When communicating metabolic information to their protein and nucleic acid counterparts, these tiny molecule metabolites are crucial. The processes by which metabolites have an impact on cellular regulatory mechanisms are still largely unknown, despite growing knowledge of this reciprocal interplay.
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Answer: The correct answer is-
C.They replaced carbon dioxide with oxygen in the atmosphere.
Cyanobacteria ( also known as blue green algae) is a large phylum of bacteria that is capable of synthesizing its own food using carbon dioxide and water in the presence of sunlight ( photosynthesis).
They contain a green pigment called chlorophyll that absorbs energy from sunlight and helps in the formation of food ( glucose). They release oxygen as a byproduct in the atmosphere.
As these organisms utilize carbon dioxide ( that is present in the atmosphere) to give oxygen in return, therefore, they affected early atmosphere of Earth by replacing carbon dioxide with oxygen.
Thus, option C) is the right answer.
Answer;
-Organizing the mitotic spindle in cell division
Explanation;
-A centriole is an organelle that helps cells divide, or make copies of themselves. Centrioles are only found in animal cells. All centrioles are made of protein strands called microtubules. Centrioles are made of nine triplets of microtubules arranged in a cylinder.
-The main purpose of a centrosome is to organize microtubules and provide structure for the cell, as well as work to pull chromatids apart during cell division.
Answer:in the third stage
Explanation: Aerobic respiration requires oxygen to breath in the third stage. In the third stage glucose molecule is the source of energy. Aerobic respiration occurs were cell use oxygen to convert glucose into energy. When you breath in,you breath in oxygen,when you breath out,you breath out carbon dioxide.
During cellular respiration,our body needs the oxygen we breath in,to get energy from the food we eat. cell uses oxygen to break down sugar.
Answer:
Both the nature of the gene and its environment can influence the mutation rate.
Explanation:
Mutations are caused by environmental factors known as mutagens.
Types of mutagens include
- radiation,
- chemicals, and
- infectious agents.
