Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology biology : an introduction introduction to organization of life signs of life what is living?

In the living things, growth

  1. Happens from inside

  2. From outside

  3. Both A and B

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

All living beings grow by the cell division and metabolic processing like respiration, nutrition etc. The living being is made up of cells hence their division happens inside the body and thus the growth happens from inside.

So the correct option is 'Happens from inside'.

Multiple choice biology biology : an introduction introduction to organization of life signs of life what is living?

Important inorganic molecules of living things are

  1. Water

  2. Salts

  3. Glucose

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Water is a major component of many of the body’s lubricating fluids and transport of materials throughout an organism. Water also protects cells and organs from physical trauma.
Many other salts are important in the body. For example, bile salts produced by the liver helps break apart dietary fats, and calcium phosphate salts form the mineral portion of teeth and bones. Salts also help in maintaining pH level of body along with water and other components.
Hence correct option is "Both A and B".
Multiple choice biology biology : an introduction introduction to organization of life signs of life what is living?

The idea of homeostasis was first presented by

  1. W. B. Cannon

  2. Claude Bernard

  3. Linus Pauling

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Homeostasis is the state of steady internal conditions maintained by living things. The concept of the regulation of the internal environment was described by French physiologist Claude Bernard in 1865. He wrote, "The stability of the internal environment [the milieu intérieur] is the condition for the free and independent life. The word homeostasis was coined by W. B. Cannon in 1926.
Hence correct option is 'Claude Bernard'.
Multiple choice biology biology : an introduction introduction to organization of life signs of life what is living?

Which of the following organism has cellular level of organization?

  1. Bacteria

  2. Virus

  3. Animals

  4. Plants
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bacteria are single-celled organisms that exhibit a cellular level of organization. Viruses are generally considered non-cellular, while animals and plants exhibit tissue or organ-system levels of organization.

Multiple choice biology biology : an introduction introduction to organization of life signs of life what is living?

Which of the following characteristic is absent in viruses?

  1. Mutation

  2. Replication

  3. Production of energy

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

Viruses are obligate parasites. They are acellular and are only made of a genetic material surrounded by a protein capsid. Viruses use the host cellular machinery for survival and replication. They also undergo mutation within the host. They have no energy metabolism nor do they produce waste products. Hence they are considered non-living. Thus the correct answer is option C.

Multiple choice biology biology : an introduction introduction to organization of life signs of life what is living?

Which of the following statements is incorrect?

  1. There are 639 muscles in man's body

  2. There are 200 bones in human body

  3. There are 30 vertebrae in human body

  4. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The human body typically has 206 bones (not 200) and 33 vertebrae (not 30). Since the other options contain incorrect information, 'None of these' is the correct choice.

Multiple choice biology biology : an introduction introduction to organization of life signs of life what is living?

Which of following is common in living and non-living thing?

  1. Cell

  2. Tissue

  3. ATP

  4. Atoms
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The living organisms are made up of the cells in which the atom forms the basis of all the structures in the cells like the proteins, lipids, fats, nucleic acids, etc. The living organisms are composed of cells, tissues, and ATP as the common source of energy. The non-living things are made up of the atoms which form the material. 

Thus, the correct answer is option D. 

Multiple choice biology biology : an introduction introduction to organization of life signs of life what is living?

Identify the attribute of living organisms.

  1. Tissue repair

  2. Irritability

  3. Both A and B

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

The living organisms are composed of cells which form the tissues. The tissues when damaged are repaired and replaced by the new cells. Irritability is the ability of an organism to respond to the external stimulus. The organism exhibit movement on receiving the stimulus from the internal or the external environment. The most common example of irritability is shown by the Mimosa plant which folds the leaflets on stimulus with touch. 

Thus, the correct answer is option C. 

Multiple choice biology biology : an introduction introduction to organization of life signs of life what is living?

Homeostasis is achieved by .......... adaptation.

  1. Morphological

  2. Physiological

  3. Behavioural

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

  • Homoeostasis is the process that helps to maintain an equilibrium between the processes or the concentration of the fluid inside and outside the body.
  • The process of homeostasis can be achieved by morphological adaptation in the form of gills or through physiological adaptation by a change in temperature or through behavioral adaptation to survive in extreme conditions. 
Thus, the correct answer is option D.