9700/12 Biology Feb Mar 2018 Online Test | Cambridge AS and A Level MCQ
Cambridge
AS & A Level
Biology (9700)
خرداد
2018
مشاهده نمونه سوال
شامل مباحث:
AS Level
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه
پیش نمایش صفحه اول فایل
Gama Admin Hydrogen bonding explains many of the properties of water, including the high latent heat of vapourisation and high specific heat capacity.
For which processes in plants is hydrogen bonding in water important on hot sunny days?
1) preventing denaturation of enzymes in leaves
2) reducing water loss by evaporation
3) allowing leaves to cool down quickly at night
4) holding the column of water in xylem vessels…
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