Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology our skeletal system and the skin other systems in the body introduction to skeletal system busy at work - our internal organs

Which of the following is not a function of skeletal system?

  1. Production of eythrocytes

  2. Storage of minerals

  3. Production of body heat

  4. Locomotion
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • The adult human skeletal system consists of 206 bones, as well as a network of tendons, ligaments and cartilage that connects them.
  •  The skeleton serves six major functions: support, movement, protection, production of blood cells, storage of minerals and endocrine regulation. Hence, Production of body heat is not a function of the skeletal system.
 So, the correct answer is 'Production of body heat

Multiple choice biology our skeletal system and the skin other systems in the body introduction to skeletal system busy at work - our internal organs

The protein content of skeletal muscles is ............ %.

  1. 10

  2. 20

  3. 40

  4. 30
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Skeletal muscle represents the majority of muscle tissue. It is the type of muscle, that powers movement of the skeleton. Their composition is 75-80 percent water, 15-20 percent proteins, 1 percent glycogen, 1 percent lipids and 1 percent mineral salts.

Multiple choice biology our skeletal system and the skin other systems in the body introduction to skeletal system busy at work - our internal organs

Water content of skeletal muscles is ............... %.

  1. 25

  2. 50

  3. 75

  4. 90
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The water and electrolyte content of skeletal muscle was an average of 78.8 gm. of water, 4.96 milliequivalent (meq.) of sodium, 8.32 meq. of potassium, 4.04 meq. of chloride, 0.445 meq. of magnesium, and 3.88 meq. of phosphorus per 100 gm. of wet tissue or muscle. Hence, the percentage of water content in skeletal muscle can vary from 75-78%.

Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

The condition of compression of the chest or abdomen is known as 

  1. Perinatal asphyxia

  2. Compressive asphyxia

  3. Anoxia

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Compressive asphyxia (also called as chest compression) is mechanically limiting expansion of the lungs by compressing the torso, hence interfering with breathing. Compressive asphyxia occurs when the chest or abdomen is compressed posteriorly. In accidents, the term traumatic asphyxia or crush asphyxia usually refers to compressive asphyxia resulting from being crushed or pinned under a large weight or force. 

Therefore, the correct answer is option B.

Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Hypoxia causes .......... in healthy people which travel to high altitudes. 

  1. Breathing sickness

  2. Altitude sickness

  3. Asthma

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Altitude sickness is the negative health effect of high altitude, caused by rapid exposure to low amounts of oxygen(hypoxia) at high elevation. Hypoxia is the deficiency of an adequate supply of oxygen to the body tissues. It occurs due to reduced oxygen tension in arterial blood. Symptoms of altitude sickness may include headaches, vomiting, tiredness, trouble sleeping, and dizziness. Hence, Hypoxia causes altitude sickness in healthy people which travel to high altitudes.

So, the correct answer is 'altitude sickness'.
Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Which of the following are symptoms of generalized hypoxia? 

  1. Hallucinations

  2. Nausea

  3. Breathlessness

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Hypoxia is the deficiency of an adequate supply of oxygen to the body tissues. It occurs due to reduced oxygen tension in arterial blood. A condition in which the body as a whole (generalized hypoxia) or a region of the body (regional hypoxia) is deprived of adequate oxygen supply. The symptoms of generalized hypoxia include Nausea, Changes in the color of your skin, Confusion, Cough, Hallucinations, Fast heart rate, Rapid breathing, breathlessness, Sweating. Hence, hallucinations, nausea, and breathlessness are the symptoms of generalized hypoxia.

So, the correct answer is 'all the above'.
Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Mountain sickness results due to

  1. Anaemic hypoxia

  2. Arterial hypoxia

  3. Lack ofsufficient RBCs

  4. Lack ofsufficient WBCs
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Arterial hypoxia (also known as hypoxiation or anoxemia) is a condition in which the body or a region of the body is deprived of adequate oxygen supply. Hypoxia may be classified as either generalized, affecting the whole body, or local, affecting a region of the body. Generalized hypoxia occurs in healthy people when they ascend to high altitude, where it causes altitude sickness or mountain sickness leading to potentially fatal complications: high altitude pulmonary edema (HAPE) and high altitude cerebral edema (HACE). Thus, option B is correct.