Question

#27

A plant that thrives in Iceland, where it is exposed to freezing temperatures and warm days, most likely produces _________ proteins

U cold-hardened. O osmotically adjusted. O tolerant. 26. Salicylic acid production by a plant tends to result in a general increase in the resistance of the entire plant to a wide range of pathogens. O ability to tolerate saline environments. O programmed death of infected plant tissue O reduced herbivory by insects. O ability to hyperaccumulate heavy metals. proteins. 27. A plant that thrives in Iceland, where it is exposed to freezing night temperatures and warm days, most likely produces O transcription factor O heat shock O cytoskeletal O antifreeze Othaw-inducing these spots are produced by the plant to solat 28. A healthy plant fighting off an attack by a bacterial pathogen develops dry brown spots on O avirulent regions O abscission tones O areas of abscisic acid O callose deposits necrotic lesions 29. Which combination of adaptations is often observed in plants found in saline environments? O Dense stomata and thick cuticles Spines and thin cutides Narrow leaves and dense stomata Salt glands and broad leaves Salt glands and succulence 30 Sant's first line of defense against herbivore damage 5:51:00 Start 6:06 PM

Answer 1

A plant that thrives in cold temperatures like that in Iveland mostly produce antifreeze proteins

Antifreeze proteins play an important role for cold tolerance in plants by inhibiting ice growth in the intercellular spacec. These proteins belong to a group of proteins that have the ability to inhibit ice crystal growth by binding with ice. Antifreeze proteins integrates with ice crystals due their attraction for surface of ice and cause to reudce the growth of ice crystals. Antifreeze proteins are also found in the body of animals. Antifreeze proteins were first discovered by a Canadian scientist Scholander during 1950s in the body of artic fish.Among plants antifreeze proteins were first discovered in winter rye by a scientist called Griffith.