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SYSTEM-atic Biology Trivia Quiz

This quiz is about the various organ-systems within the human body, including circulatory, respiratory, digestive, excretory and nervous. Questions are three per system, and are scrambled. There is also one question on an extra system.

A multiple-choice quiz by Rossell. Estimated time: 7 mins.

Author
Rossell

Time
7 mins

Type
Multiple Choice

Quiz #
251,181

Updated
Jul 25 23

# Qns
15

Difficulty
Difficult

Avg Score
7 / 15

Plays
4099

Awards
Top 35% Quiz

One at a Time - Single Page - Timed Game

Question 1 of 15

1. After strenuous cardiovascular exercise, which part of the nervous system is responsible for slowing down heart rate? Hint

Parasympathetic nervous system

Somatic nervous system

Sympathetic nervous system

It is the endocrine system, through hormones, that slows the heart rate and not the nervous system

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Question 2 of 15

2. What does the enzyme 'invertase' digest? Hint

Sucrose

Emulsified fat

Maltose

Lactose

3. You dissolve one gram of iodine, one gram of potassium iodide in 100 ml of distilled water to obtain a certain solution. You dilute this solution and add it to a sample of food. The food turns a blue-black color, confirming the presence of a type of food substance, 'X' in the food.

Name the enzyme that digests 'X' in the mouth.
Hint

Amilyse

Amylopsin

Ptyalin

Salivary amylopsin

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Question 4 of 15

4. I will describe a system to you, and you must name it.

This system is a part of the blood circulatory system. Because of this system, digested substances are not directly introduced into the bloodstream, but first taken to a certain organ to regulate their levels in order to ensure that the composition of the blood is not disturbed. A certain vein shares its name with this system.

Name the system.
Hint

None of these

Pulmonary circulatory system

Hepatic portal system

Systemic circulatory system

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Question 5 of 15

5. Name the artery from which blood is led to a dialysis machine upon the failure of both kidneys. Hint

Radial vein

Radial artery

Aorta

Superior vena cava

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Question 6 of 15

6. Glycolysis takes place in the cytoplasm of the cell and takes place without the use of oxygen to break down glucose into pyruvic acid.

True

False

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Question 7 of 15

7. The posterior pituitary gland secretes two hormones. One of these cause the contraction of the uterine muscle during childbirth.

Name the above mentioned hormone. Hint

Natocin

Vasopressin

Uterotocin

Oxytocin

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Question 8 of 15

8. Which part of the kidney does the proximal convoluted tubule lie in? Hint

Pelvis

Medulla

Cortex

Papilla

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Question 9 of 15

9. From which fluid do cells draw in oxygen and excrete carbon dioxide into? Hint

Synovial fluid

Tissue fluid

Blood

Lymph

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Question 10 of 15

10. What is the function of the node of Ranvier? Hint

Reducing the speed at which nerve impulses travel

Increasing the speed at which nerve impulses travel

Insulation of nerve impulses to prevent commands from getting mixed up

Synthesis of axoplasm

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Question 11 of 15

11. A person dies due to asphyxiation.

What would the probable pH level of such a person's muscular tissue? Hint

Above 7 (alkaline)

Impossible to say based on this information.

7 (neutral)

Below 7 (acidic)

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Question 12 of 15

12. Which of the following body parts initiates the cardiac cycle? Hint

Sino Atrial Node

Auriculo-Ventricular Node

Atrio-Ventricular Node

Medulla oblongata

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Question 13 of 15

13. A person suffers from a certain ophthalmic disorder. To correct it, he is required to wear glasses consisting of convex lenses.

What is the biological name of the disorder? Hint

Myopia

Near-sightedness

Xerophthalmia

Hypermetropia

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Question 14 of 15

14. A person eats tomatoes, spinach, pulses and cottage cheese in large quantities while consuming little water.

Which of the following diseases is he likely to get? Hint

Gout

Kidney stones

Glycosuria

Glucosuria

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Question 15 of 15

15. All multicellular organisms respire aerobically.

True

False

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Quiz Answer Key and Fun Facts

1. After strenuous cardiovascular exercise, which part of the nervous system is responsible for slowing down heart rate?

Answer: Parasympathetic nervous system

The parasympathetic nervous system has effects on the body opposite to the sympathetic nervous system, which prepares the body for action after being stimulated by the hormone adrenaline.

2. What does the enzyme 'invertase' digest?

Answer: Sucrose

'Invertase' is also known as 'sucrase'.

Maltose: Digested by 'maltase'
Lactose: Digested by 'lactose'

Answer: Ptyalin

'x' is starch. The solution was iodine solution. Starch reacts with iodine to obtain a blue-black colour.

Amylopsin digests starch, but in the duodenum. Amylopsin is also called 'pancreatic amylase'.

Ptyalin is also called 'salivary amylase'.

4. I will describe a system to you, and you must name it. This system is a part of the blood circulatory system. Because of this system, digested substances are not directly introduced into the bloodstream, but first taken to a certain organ to regulate their levels in order to ensure that the composition of the blood is not disturbed. A certain vein shares its name with this system. Name the system.

Answer: Hepatic portal system

The hepatic portal system, mainly through the hepatic portal vein, takes absorbed substances like simple sugars, amino acids, vitamins etc. from the blood and takes them to the liver for storage or excretion of excess substances.

5. Name the artery from which blood is led to a dialysis machine upon the failure of both kidneys.

Answer: Radial artery

The Radial artery is also used for measuring pulse rate.

6. Glycolysis takes place in the cytoplasm of the cell and takes place without the use of oxygen to break down glucose into pyruvic acid.

Answer: True

Glycolysis is the first part of cellular respiration.

7. The posterior pituitary gland secretes two hormones. One of these cause the contraction of the uterine muscle during childbirth. Name the above mentioned hormone.

Answer: Oxytocin

Vasopressin is also called ADH or the anti diuretic hormone, and is also secreted by the posterior pituitary.

8. Which part of the kidney does the proximal convoluted tubule lie in?

Answer: Cortex

The proximal convoluted tubule is a part of the nephron.

The only part of the nephron lying in the medulla is the Loop of Henle, which doubles back to re-enter the cortex.

9. From which fluid do cells draw in oxygen and excrete carbon dioxide into?

Answer: Tissue fluid

Tissue fluid is the circulating fluid which bathes and surrounds the cells. Oxygen diffuses into this fluid from the blood in the capillaries, and it is from the tissue fluid that cells take up oxygen.

10. What is the function of the node of Ranvier?

Answer: Increasing the speed at which nerve impulses travel

It is the medullary sheaths and not the nodes of Ranvier that insulate the axon.

11. A person dies due to asphyxiation. What would the probable pH level of such a person's muscular tissue?

Answer: Below 7 (acidic)

Under asphyxiation, a person's body would be forced to respire anaerobically. The product of anaerobic respiration in animals is lactic acid and little energy, resulting in a pH below 7.

12. Which of the following body parts initiates the cardiac cycle?

Answer: Sino Atrial Node

The SAN passes a lateral impulse to make the auricles contract rhythmically and simultaneously. This impulse touches the AVN located in the septum, which makes the ventricles contract rhythmically and simultaneously.

13. A person suffers from a certain ophthalmic disorder. To correct it, he is required to wear glasses consisting of convex lenses. What is the biological name of the disorder?

Answer: Hypermetropia

Hypermetropia or long-sightedness is corrected by a convex lens.

Myopia or near-sightedness is corrected by a concave lens.

14. A person eats tomatoes, spinach, pulses and cottage cheese in large quantities while consuming little water. Which of the following diseases is he likely to get?

Answer: Kidney stones

The four foods mentioned are rich in an insoluble salt, calcium oxalate, which is the primary cause of kidney stones.

15. All multicellular organisms respire aerobically.

Answer: False

There are in fact certain multicellular organisms, mainly parasites, e.g. a tapeworm, that respire without the use of oxygen.

Source: Author Rossell

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