Answer:
Oxygen and pyruvate.
Explanation:
The krebs cycle is a stage of cellular respiration and occurs in aerobic organisms. In this case, we can say that the Krebs Cycle only occurs in the presence of oxygen, being essential for the completion of cell respiration.
The Krebs cycle only occurs after the completion of glycolysis, as it needs to be initiated by pyruvate, which is a molecule resulting from glycolysis. In this case, in addition to oxygen, the presence of pyruvate is essential for the krebs cycle to occur.
The answer to this question is B
Answer:
Cross bridge in a sarcomere of a fast fiber produce higher amounts of force as compared to a cross bridge in a sarcomere of a slow fiber
Explanation:
When a muscle contracts, a cross bridge is formed between actin and myosin. The sarcomere shortens when a muscle contracts by reforming cross bridge. In general a muscle fiber is of three types – a) slow, b) Fast and c) intermediate.
The sarcomere of fast fiber generates high force but for a short period of time. On the other hand, sarcomere of slow fiber generate lower amounts of force but this force lasts for a longer period of time. Due to this difference, fast fibers are the predominant fibers in the body
Salivary amylase
Explanation:
In the tongue, salivary amylase is the first enzyme to mix with food in the digestive tract. It is the primary enzyme of saliva. Salivary amylase is secreted from the salivary glands (mainly parotid glands) in the buccal cavity.
<em> </em><em>Hope </em><em>it</em><em> helps</em><em> you</em><em>.</em><em>.</em><em>.</em><em> </em><em>Pls</em><em> mark</em><em> brainliest</em>
Answer:
o In the chemical bonds between adenine and ribose
Explanation:
<h2><u><em>
this is correct!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!</em></u></h2>
