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Question 1
Which physical property of water allows it to absorb or release large quantities of thermal energy with minimal change in its own temperature, buffering biological organisms against environmental thermal fluctuations?
Correct Answer:
High specific heat capacity
Question 2
When a red blood cell (erythrocyte) is placed in a hypertonic NaCl solution, water rapidly flows out of the cell across the plasma membrane. What is this cellular response termed in animal cell physiology?
Correct Answer:
Crenation
Question 3
Which of the following monosaccharides is classified structural-chemically as a ketohexose?
Correct Answer:
D-Fructose
Question 4
Maltose is a disaccharide produced by starch hydrolysis. Which glycosidic linkage connects the two glucose units in maltose?
Correct Answer:
alpha(1 -> 4) glycosidic bond
Question 5
Cellulose serves as a structural component in plant cell walls, whereas starch serves as energy storage. What structural feature accounts for the mechanical rigidity and resistance of cellulose to human digestive enzymes?
Correct Answer:
Linear unbranched chains of D-glucose linked by beta(1 -> 4) glycosidic bonds forming microfibrils
Question 1
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Prepare with the Castilla y León PAU Biology Practice Questions - Castilla y León PAU Biology (Biología 2o Bachillerato) Exam practice quiz. This question bank includes 100 questions covering acid, cell, cells, structural, and proteins. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Castilla y León PAU Biology Practice Questions - Castilla y León PAU Biology (Biología 2o Bachillerato) Exam

This practice set contains 100 questions from the matching question bank and focuses on acid, cell, cells, structural, and proteins. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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