Question

Which one of the following pair is mismatched: -

• A. Freeze tolerant animals − Ice nucleating proteins
• B. Freeze avoiding animals − Glycerol and anti-freeze protein
• C. Plants grow in high temperature − $\text{CAM}$ pathway
• D. Plant grow in low temperature − Chaperonins

Answer 1

The correct option is D Plant grow in low temperature − Chaperonins

Ice-nucleator proteins inhibit super-cooling and induce freezing in the extracellular fluid at high subzero temperatures in many freeze-tolerant species, thereby allowing them to control the location and temperature of ice nucleation, and the rate of ice growth.

The antifreeze molecules allow icefish to live in subfreezing water by plugging gaps in existing small ice crystals and preventing the attachment of more ice molecules.

Some plants that are adapted to dry environments, such as cacti and pineapples, use the crassulacean acid metabolism $\text{(CAM)}$ pathway to minimize photorespiration.

Chaperonins are proteins that provide favourable conditions for the correct folding of other proteins, thus preventing aggregation.
So, the correct answer is 'Plant grow in low temperature − Chaperonins'.