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

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About this Exam

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.

Sample Questions

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?
High specific heat capacity
High surface tension
Low latent heat of vaporization
Maximum density at 0 °C
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?
Crenation
Plasmolysis
Hemolysis
Turgor
Question 3
Which of the following monosaccharides is classified structural-chemically as a ketohexose?
D-Fructose
D-Glucose
D-Galactose
Ribose
Question 4
Maltose is a disaccharide produced by starch hydrolysis. Which glycosidic linkage connects the two glucose units in maltose?
alpha(1 -> 4) glycosidic bond
beta(1 -> 4) glycosidic bond
alpha(1 -> 2) glycosidic bond
alpha(1 -> 6) 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?
Linear unbranched chains of D-glucose linked by beta(1 -> 4) glycosidic bonds forming microfibrils
Branched polymer chains of D-glucose linked by alpha(1 -> 4) and alpha(1 -> 6) bonds
Coiled helical chains of D-glucose linked exclusively by alpha(1 -> 4) bonds
Heteropolysaccharide composition containing alternating units of N-acetylglucosamine

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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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Frequently Asked Questions

This quiz contains a total of 100 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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