Quiz On Internal Systems Of Biology Quiz
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Questions and Answers
- 1.
Explain the travel of food entering from the mouth and being ex/creted from the anus
- 2.
If a person is exercising, why does their breathing rate increase?
- 3.
What signals the gall bladder to release bile into the pancreas to send to the small intestine?
- 4.
Describe 2 ways the digestive system and respiratory system work together.
- 5.
Do the blood vessels on the surface of your skin constrict or dilate in response to a cold environment? Explain.
- 6.
Why are there no mitochondria in the red blood cells?
- 7.
In which digestive organ is chyme produced?
- A.
Mouth
- B.
Stomach
- C.
Small Intestine
- D.
Pancreas
Correct Answer
C. Small IntestineExplanation
Chyme is produced in the stomach. After food is swallowed, it enters the stomach where it is mixed with gastric juices and broken down into a semi-liquid substance called chyme. The chyme is then gradually released into the small intestine for further digestion and absorption of nutrients.Rate this question:
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- 8.
What is the main function of the respiratory system?
- A.
To break food down
- B.
To make red, white blood cells
- C.
Supply the blood with oxygen
- D.
Circulate the blood
Correct Answer
C. Supply the blood with oxygenExplanation
The main function of the respiratory system is to supply the blood with oxygen. This is achieved through the process of respiration, where oxygen is inhaled into the lungs and then transported to the bloodstream. The oxygen-rich blood is then circulated throughout the body to provide oxygen to the cells and tissues, allowing them to carry out their functions. This process is essential for the survival and proper functioning of the body.Rate this question:
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- 9.
Where does the exchange of oxygen and carbon dioxide take place?
- A.
Within the alveoli
- B.
The bronchioles
- C.
The lungs
- D.
Inside the right atrium of the heart
Correct Answer
A. Within the alveoliExplanation
The exchange of oxygen and carbon dioxide takes place within the alveoli. Alveoli are tiny air sacs located at the end of the bronchioles in the lungs. They have thin walls and are surrounded by capillaries, allowing for efficient exchange of gases between the air in the alveoli and the bloodstream. Oxygen from the air enters the bloodstream, while carbon dioxide, a waste product, is removed from the bloodstream and exhaled out of the body.Rate this question:
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- 10.
Which of the following is NOT a function of white blood cells?
- A.
Carry Oxygen
- B.
Fight parasites
- C.
Attack bacteria
- D.
Guard against infection
Correct Answer
A. Carry OxygenExplanation
White blood cells, also known as leukocytes, are responsible for various functions in the immune system. They play a crucial role in defending the body against infections and foreign substances. However, carrying oxygen is not one of their functions. Red blood cells, specifically the protein hemoglobin within them, are responsible for carrying oxygen to the body's tissues. White blood cells primarily function in recognizing and attacking pathogens, fighting parasites, and guarding against infections.Rate this question:
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- 11.
The circulatory system is composed of?
- A.
The heart, blood, blood vessels
- B.
The heart, the brain, and the lungs
- C.
The lungs, the blood, and the blood vessels
- D.
The brain, the heart, and the blood vessels
Correct Answer
A. The heart, blood, blood vesselsExplanation
The circulatory system is composed of the heart, blood, and blood vessels. These three components work together to transport oxygen, nutrients, hormones, and waste products throughout the body. The heart pumps the blood, which carries oxygen and nutrients, through the blood vessels to reach all the cells and organs in the body. The blood vessels, including arteries, veins, and capillaries, provide a network of pathways for the blood to flow. This system ensures that all parts of the body receive the necessary oxygen and nutrients for proper functioning.Rate this question:
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- 12.
The gastric fluid components are...
- A.
Chyme, Mucus, HCl
- B.
Pancreatic juices, Mucus, pepsinogen
- C.
HCl, Pepsinogen, Mucus,
- D.
Bile, HCl, Mucus
Correct Answer
C. HCl, Pepsinogen, Mucus,Explanation
The correct answer is HCl, Pepsinogen, Mucus. Gastric fluid is a digestive fluid produced by the stomach. HCl (hydrochloric acid) is a key component of gastric fluid, helping to break down food and kill bacteria. Pepsinogen is an inactive enzyme that is converted into pepsin, an enzyme that breaks down proteins, in the presence of HCl. Mucus is also present in gastric fluid, providing a protective lining for the stomach and lubricating the passage of food. This combination of HCl, pepsinogen, and mucus helps to facilitate the digestion process in the stomach.Rate this question:
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- 13.
The 4 major stages of digestion are:
- A.
Injestion, Chemical digestion, Physical digestions, Elimination
- B.
Digestion, Absorption, Water absorption, Elimination
- C.
Injesion, Chemical digestion, Water absorption, Physical digestion
- D.
Injestion, Digestion, Absorption, Elimination
Correct Answer
D. Injestion, Digestion, Absorption, EliminationExplanation
The correct answer is "Injestion, Digestion, Absorption, Elimination". Ingestion refers to the intake of food into the body. Digestion involves the breakdown of food into smaller molecules through both chemical and physical processes. Absorption refers to the absorption of nutrients into the bloodstream from the digestive tract. Elimination is the process of removing waste products from the body through defecation. This sequence accurately represents the major stages of digestion in the correct order.Rate this question:
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- 14.
Correct Answer
N/A - 15.
Why is the trachea surrounded by cartilage rings?
- A.
For structure
- B.
To prevent it from collapsing
- C.
To allow air to pass by efficiently
- D.
To produce mucus so it can trap particles
Correct Answer
B. To prevent it from collapsingExplanation
The trachea is surrounded by cartilage rings to prevent it from collapsing. These rings provide structural support and help to maintain the shape and openness of the trachea. Without these cartilage rings, the trachea would be susceptible to collapsing under the pressure changes that occur during breathing. By preventing collapse, the cartilage rings ensure that air can pass through the trachea efficiently, allowing for proper respiration.Rate this question:
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- 16.
The platelet's function is to...
- A.
Clot the blood
- B.
Clog the blood
- C.
Release chemicals
- D.
Fix damaged organs
Correct Answer
A. Clot the bloodExplanation
Platelets are small cell fragments in the blood that play a crucial role in the clotting process. When a blood vessel is damaged, platelets adhere to the site and form a plug to stop bleeding. They release chemicals that attract more platelets and help in the formation of a stable blood clot. This clotting mechanism is essential in preventing excessive bleeding and promoting wound healing. Therefore, the correct answer is "Clot the blood."Rate this question:
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- 17.
When you breath in
- A.
Diaphragm moves up, rib cage contracts
- B.
Diaphragm moves down, rib cage contacts
- C.
Diaphragm moves down, rib cage expands
- D.
Diaphragm moves up, rib cage expands
Correct Answer
C. Diaphragm moves down, rib cage expandsExplanation
When you breathe in, the diaphragm moves down and the rib cage expands. This allows more space for the lungs to expand and fill with air. The diaphragm is a dome-shaped muscle located at the base of the lungs, and when it contracts and moves downward, it creates a vacuum effect that pulls air into the lungs. At the same time, the rib cage expands as the intercostal muscles between the ribs contract, further increasing the space available for the lungs to expand. This movement of the diaphragm and rib cage is essential for inhalation and the intake of oxygen.Rate this question:
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- 18.
When oxygen is taken into a cell and is used in the breakdown of nutrients it is calle?
- A.
Cellular respiration
- B.
Compliance
- C.
Inhalation
- D.
Vital Capacity
Correct Answer
A. Cellular respirationExplanation
When oxygen is taken into a cell and used in the breakdown of nutrients, it is called cellular respiration. This process occurs in the mitochondria of the cell and produces energy in the form of ATP. Cellular respiration is essential for the survival of cells and is a fundamental process in all living organisms.Rate this question:
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- 19.
The trachea divides into how many "main stems"?
- A.
2
- B.
4
- C.
Doesn't divide at all
- D.
6
Correct Answer
A. 2Explanation
The trachea, also known as the windpipe, divides into two main stems called the bronchi. Each bronchus then branches out further into smaller bronchioles, which eventually lead to the lungs. This division allows for the efficient distribution of air into both lungs, ensuring proper oxygenation of the blood.Rate this question:
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- 20.
Internal exchange takes place between
- A.
Blood and the tissues
- B.
Air and nostrils
- C.
Phrenic nerve
Correct Answer
A. Blood and the tissuesExplanation
Internal exchange takes place between blood and the tissues. This refers to the process of exchanging gases, nutrients, and waste products between the bloodstream and the cells of the body. Oxygen is taken up by the blood from the lungs and transported to the tissues, while carbon dioxide and other waste products are transported from the tissues back to the blood to be eliminated. This exchange occurs through the network of blood vessels that supply the tissues, allowing for the delivery of essential substances and the removal of waste.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Nov 11, 2013Quiz Created by
Simransandhu
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