1. The name for the process of converting body proteins to energy is:
a. Gluconeogenesis
b. Lipogenesis
c. Lipolysis
2. In synthesizing a body protein, at which step in the process does a protein become able to carry out its function?
a. Primary Structure – amino acid sequencing
b. Secondary Structure – polypeptide shapes
d. Tertiary Structure – polypeptide tangles
3. Where are proteases made? (Select all that apply)
Mouth
Stomach
Pancreas
Small intestine
1. The name for the process of converting body proteins to energy is: Well, this is a tough question. I guess you could say it’s a "protein hunt" for energy. But the correct answer here is a. Gluconeogenesis, because turning proteins into energy is a real protein power move.
2. In synthesizing a body protein, at which step in the process does a protein become able to carry out its function? Well, it’s like a protein going through its own "makeover show." First, it figures out its "primary structure" in the amino acid sequencing step. Then it gets its "secondary structure" by trying on different polypeptide shapes. Finally, in the "tertiary structure" step, it untangles all its polypeptide knots to become fully functional! So the answer is d. Tertiary Structure – polypeptide tangles.
3. Where are proteases made? (Select all that apply) Proteases are like the "secret agents" of the digestive system, breaking down proteins like Jason Statham breaks down bad guys in action movies. They can be found in the mouth (because hey, sometimes even proteins need a little chewing), the stomach (the acid in there can be quite the protein party), and the pancreas (it’s like proteases have their own production line there). So, the correct answers are Mouth, Stomach, and Pancreas.
1. The correct answer is c. Lipolysis. Lipolysis is the process by which body proteins are broken down and converted into energy.
2. The correct answer is d. Tertiary Structure – polypeptide tangles. A protein becomes able to carry out its function when it folds into its three-dimensional structure, known as the tertiary structure. This structure is essential for the protein to interact with other molecules and perform its specific function.
3. Proteases are made in the Stomach and Pancreas. Proteases are enzymes that break down proteins into smaller molecules. They are produced and secreted by various organs of the digestive system, including the stomach and pancreas. In the mouth, enzymes called amylases are more involved in breaking down carbohydrates rather than proteins.
1. The name for the process of converting body proteins to energy is:
c. Lipolysis
To answer this question, we need to understand the process of converting body proteins to energy. Lipolysis is the breakdown of fats into fatty acids and glycerol, which can be used as a source of energy. However, when it comes to converting body proteins to energy, there is not a specific process dedicated solely to this conversion. When the body is in need of energy and other fuel sources are depleted, such as carbohydrates and fats, it can break down proteins through a process called gluconeogenesis. During gluconeogenesis, amino acids from proteins can be converted into glucose, which can then be used as an energy source.
2. In synthesizing a body protein, at which step in the process does a protein become able to carry out its function?
d. Tertiary Structure – polypeptide tangles
The process of synthesizing a body protein involves different steps that contribute to its overall structure and function. The primary structure refers to the sequence of amino acids in a protein chain. The secondary structure refers to the folding and arrangement of the polypeptide chain, forming structures like alpha helices and beta sheets. The tertiary structure is the three-dimensional folding of the polypeptide chain, which brings together different regions of the protein to create its overall shape and functionality. Therefore, it is at the tertiary structure stage that a protein becomes able to carry out its function.
3. Where are proteases made? (Select all that apply)
Proteases are enzymes that break down proteins into smaller fragments. Here are the locations where proteases are made:
- Stomach
- Pancreas
- Small intestine
Proteases play a crucial role in the digestion of proteins. In the stomach, pepsinogen is secreted by the stomach lining cells and is activated to pepsin by the acidic environment of the stomach. Pepsin is a protease that helps break down proteins into smaller peptides. In the pancreas, proteases such as trypsin, chymotrypsin, and elastase are produced and released into the small intestine. These pancreatic proteases further break down proteins into smaller peptides and amino acids. Finally, in the small intestine, additional enzymes called brush border proteases are located on the surface of the intestinal lining. These enzymes help break down peptides into amino acids for absorption.