During exercise, muscle cells immediately use ATP as the energy source for contractions.
The only immediate source of energy for muscular contraction is ATP. Within muscle fibers, ATP is replenished by creatine phosphate (anaerobic respiration), glycolysis (anaerobic respiration), and cellular respiration (aerobic respiration). As the duration and intensity increase, carbohydrates (glucose/glycogen) become the primary source of fuel. If exercise is sustained for an extended period of time, fatty acids will be used as a fuel source when glycogen stores are nearly depleted.
ATP is a form of instant energy. The body cannot obtain energy directly from glucose. Glucose is not a direct source of energy. Instead, the body uses the energy released from the breakdown of glucose to drive ADP phosphorylation.
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Answer:
1. (c)
2. (a)
3. (c)
4. (b)
5. (d)
1. (a)
2. (b)
3. (c)
Explanation:
<u>OBSERVATION TYPE</u> :-
1. The elements can be divided into 3 major groups metals, non- metals and metalloids. The rest of the options are also the names of some groups yet fail to be then correct answer. If you were asked to define 18 groups that exist in the periodic table then you'd have selected them. (r u getting me?)
2. Group 1 elements are known as alkali metals
3. Group 2 elements are called alkaline earth metals
4. Group 13 is called Boron Family
5. These are non-metals
i'd have selected Nobel gases had not Hydrogen been there. Excluding Hydrogen all are nobel gases.
<u>C</u><u>O</u><u>N</u><u>C</u><u>L</u><u>U</u><u>S</u><u>I</u><u>O</u><u>N</u><u> </u><u>:</u><u>-</u>
1. The modern periodic table groups the elements into vertical columns, groups, and horizontal rows, groups.
2. Since the question is asking the harmful changes in metals that take place upon reacting with acids, it'll be option (b). as the metals corrode upon being treated with acids which is not of good use to us. the last two options talk bout the uses of this process which wont be "harmful", so the answer is only option (b)
3. Protective layering of various metals like Zn, Al helps prevent corrosion in metals.
Telophase, - During telophase, the nuclear membrane reforms around each set of chromosomes, and the spindle fibers are dismantled.
The sugar and phosphate portion of the nucleotides are found as segments of the rails on the DNA twisted ladder.
