Question

Which of the following statements defines auxetic growth?

• A. Volume of the organism increases
• B. No cell division
• C. Cellular enlargement
• D. All of the above

Answer 1

Answer: (D)

All of the above

• Auxesis (increase; grow) refers to growth from an increase in cell size rather than an increase in the number of cells. Auxetic growth occurs in certain tissues, such as muscle, of the higher animals as well as in some organisms, such as nematodes, tunicates, and rotifers.
• In plant physiology, an auxetic substance will tend to increase cell growth without any cell division. Auxins are auxetic plant hormones.
  
• Hence Volume of the organism increases, No cell division, and Cellular enlargement defines auxetic growth.
• So, the correct answer is 'All of the above'.