Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology health and diseases disease and its treatment manifestation and treatment of disease treatment of disease

How can a person prevent itself from transmission of infection ?

  1. Contact precautions

  2. Droplet precautions

  3. Airborne precautions

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An individual can take following precautions to avoid infection: avoid physical contact, cover face with mask to prevent droplet infection and airborne infection. Therefore, (d) is the correct answer.

Multiple choice biology health and diseases disease and its treatment manifestation and treatment of disease treatment of disease

Assertion : Old age is not an illness. It is a continuation of life with decreasing capacity for adaptation.

Reason : Cessation of mitosis is normal genetically programmed event.

  1. Both Assertion and Reason are true and Reason is a correct explanation of Assertion

  2. Both Assertion and Reason are true but Reason is not a correct explanation of Assertion

  3. Assertion is true but Reason is false

  4. Both Assertion and Reason are false

  5. Assertion is false but reason is true.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Old age is not illness. It includes progressive deterioration of the structure and functions of cells, tissue, organs and organs systems. With increasing age, the efficiency of heat decreases and consequently, the blood going the brain and kidney is reduced to 80% and 42% respectively. Arthritis, weak eyesight, less secretion of digestive juices etc. are some degenerative diseases. Cessation of mitosis is not a genetically programmed event.

So, the correct answer is 'Assertion is true but Reason is false'.

Multiple choice biology body movement joints in the human body our skeletal system and the skin joints

Ginglymoid/hinge joint occurs in

  1. Elbow and shoulder

  2. Elbow and knee

  3. Atlas and odontoid process

  4. Knee and ankle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Joints are points of contact between bones, or between bones and cartilages.
  • Synovial joints are characterized by the presence of a fluid-filled synovial cavity between the articulating surfaces of the two bones. These joints help in locomotion and many other movements. 
  • A hinge joint (ginglymus) is a joint in which the articular surfaces are molded to each other in such a manner as to permit motion only in one plane.
  • The knee joint and elbow is a hinge joint/ ginglymoid i.e a type of synovial joint. 
  • So, the correct answer is 'Elbow and Knee'.
Multiple choice biology body movement joints in the human body our skeletal system and the skin joints

Largest synovial joint is

  1. Hip joint

  2. Knee joint

  3. Shoulder joint

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

A synovial joint is a connection between two bones which consists of a cartilage lined cavity filled with fluid. The knee joint is the biggest synovial joint in the human body. At the junction of the knee, the large femur bone of the thigh connects to both the tibia and fibula of the leg, as well as to the patella or knee cap. So, the correct answer is 'Knee joint'.

Multiple choice biology body movement joints in the human body our skeletal system and the skin joints

Synovial fluid is present in

  1. Spinal cavity

  2. Cranial cavity

  3. Freely movable joints

  4. Fixed joints
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Joints are points of contact between bones, or between bones and cartilages.
  • Synovial joints are characterized by the presence of a fluid-filled synovial cavity between the articulating surfaces of the two bones. These joints help in locomotion and many other movements.
  • Synovial joints are freely movable joint. Hence synovial fluid is present in freely movable joint.
  • So,the correct answer is 'Freely movable joints'.
Multiple choice biology body movement joints in the human body our skeletal system and the skin joints

Friction is lessened in ball-and-socket joint by

  1. Coelomic fluid

  2. Synovial fluid

  3. Pericardial fluid

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

Synovial fluid is the pale yellow fluid that is present in every joint of the human body. It helps the bone able to slide past each other without causing damage to the ends of the bone. It means that synovial fluid lessens the friction in ball and socket joint. So, the correct answer is 'Synovial fluid'.