Bile is a secretion which aids in the digestion of

A. lipids

B. proteins

C. saccharides

D. starches

Answer Explanation:

A) lipids

- Correct: Bile is a secretion produced by the liver and stored in the gallbladder. It aids in the digestion of lipids (fats) by emulsifying large fat globules into smaller droplets. This process increases the surface area of fats, allowing digestive enzymes such as lipase to more efficiently break them down into smaller molecules (fatty acids and glycerol) that can be absorbed in the small intestine.

B) proteins

- Incorrect: Bile does not aid in the digestion of proteins. Proteins are broken down by specific digestive enzymes such as pepsin in the stomach and proteases in the small intestine.

C) saccharides

- Incorrect: Bile does not aid in the digestion of saccharides, which are carbohydrates. Carbohydrates are broken down by enzymes such as amylase into simple sugars (monosaccharides) during the process of digestion.

D) starches

- Incorrect: Bile does not aid in the digestion of starches. Starches are complex carbohydrates

Therefore, the Correct Answer is A.

Q #1: The pancreas is an organ connected to the digestive tract of humans by a duct (tube) through

A. which digestive enzymes flow. These enzymes are important to the digestive system because

B. they

C. form proteins needed in the stomach

D. form the acids that break down food

Answer Explanation

The enzymes secreted by the pancreas play a crucial role in the digestion process by breaking down various nutrients, such as carbohydrates, proteins, and fats, into smaller molecules.

These smaller molecules are then absorbed through the walls of the small intestine into the bloodstream and subsequently transported to cells throughout the body for energy production, growth, and repair.

Therefore, these enzymes are essential for converting complex food substances into molecules that can be utilized by the body's cells for various metabolic processes.
Q #2: Base your answer to the following question on the diagram below of some human digestive organs and on your knowledge of biology. Which organ synthesizes both urea and bile?

A. A

B. E

C. C

D. D

Answer Explanation

The organ that synthesizes both urea and bile is the liver (E).

The liver plays a crucial role in metabolism and detoxification in the body. It synthesizes urea as a waste product of protein metabolism through the process of the urea cycle. Urea is then excreted by the kidneys in urine.

Additionally, the liver produces bile, a substance that aids in the digestion and absorption of fats. Bile is synthesized in hepatocytes (liver cells) and then stored and concentrated in the gallbladder before being released into the small intestine to emulsify fats.
Q #3: Salmonella bacteria can cause humans to have stomach cramps, vomiting, diarrhea, and fever. The effect these bacteria have on humans indicates that Salmonella bacteria are

A. predators

B. pathogenic organisms

C. parasitic fungi

D. decomposers

Answer Explanation

B) pathogenic organisms

- Correct: Salmonella bacteria are pathogenic organisms, meaning they can cause disease in humans and other animals. When ingested, Salmonella bacteria can lead to symptoms such as stomach cramps, vomiting, diarrhea, and fever. Salmonella infection, known as salmonellosis, is a common cause of foodborne illness, often associated with the consumption of contaminated food, particularly undercooked poultry, eggs, and unpasteurized dairy products.

A) predators

- Incorrect: Predators are organisms that hunt, kill, and consume other organisms for food. Salmonella bacteria are not predators; they do not actively hunt and consume other organisms.

C) parasitic fungi

- Incorrect: Salmonella bacteria are not parasitic fungi. Parasitic fungi are fungi that derive nutrients from living organisms, often causing harm or disease. Salmonella bacteria are a distinct type of pathogenic bacteria, not fungi.

D) decomposers

- Incorrect: Decomposers are organisms that break down and feed on dead organic matter, aiding in the process of decomposition. Salmonella bacteria are not decomposers; they are pathogenic bacteria that can cause illness in humans and animals.

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Bile is a secretion which aids in the digestion of

More Questions on TEAS 7 Science

Q #1: The pancreas is an organ connected to the digestive tract of humans by a duct (tube) through

Answer Explanation

Q #2: Base your answer to the following question on the diagram below of some human digestive organs and on your knowledge of biology. Which organ synthesizes both urea and bile?

Answer Explanation

Q #3: Salmonella bacteria can cause humans to have stomach cramps, vomiting, diarrhea, and fever. The effect these bacteria have on humans indicates that Salmonella bacteria are

Answer Explanation

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