Transport - Grade Gorilla IB Biology Questions

Target: 10 questions in 10 minutes
1. Which of the following adaptations allows arteries to withstand and maintain high blood pressures? A. Presence of valves B. Walls with layers of muscle and elastic tissue C. Thin walls with fenestrations D. Large lumens relative to wall thickness	ABCD
2. What structural feature of veins aids in the return of blood to the heart? A. Thick muscular walls B. Valves C. Low pressure D. High elasticity to withstand pressure	ABCD
3. Which of the following is not an adaptation of capillaries? A. Narrow diameters to reduce diffusion distance B. Branching networks to increase surface area C. Fenestrations to facilitate exchange D. High pressure maintained by elastic tissue	ABCD
Q4-6. The image shows a transverse section of blood vessels seen under a light microscope.	OpenStax College (adapted) CC-BY-SA 3.0
4. The structure labelled Y is the best described as ... A. a compressible lumen of a vein B. a compressible lumen of an artery C. a capillary D. a non-compressible lumen of a vein	ABCD
5. Which structure(s) in the above diagram contain elastic fibres and collagen? A. II only B. III only C. II and III only D. I and II only	ABCD
6. Which features seen on the image can be used to distinguish arteries and veins? A. II only B. I and II only C. I and III only D. I, II and III	ABCD
7. Which of the following applies to measuring the heart rate in the neck? A. Feel for the radial pulse with your fingertips and count the number of beats per hour B. Feel for the carotid pulse with your thumb and count the number of beats per minute C. Feel for the radial pulse with your thumb and count the number of beats per minute D. Feel for the carotid pulse with your fingertips and count the number of beats per minute	ABCD
8. Which adaptation of xylem vessels specifically helps them withstand the tension generated during transpiration? A. Presence of sieve plates B. Lignified walls C. Reduced cytoplasm and organelles D. Thin walls with fenestrations	ABCD
9. What role does cohesion play in the transpiration stream within xylem vessels? A. It prevents water from evaporating from the leaf surface. B. It ensures a continuous column of water is maintained from roots to leaves. C. It facilitates the entry of water into root hair cells. D. It allows for the active transport of minerals into the xylem.	ABCD
Q10. The image shows a transverse section of the root of a dicotyledonous plant seen under a light microscope.	Naz Amann CC-BY-SA 4.0
The plant is placed in water containing blue ink. In which region of the root would you expect the blue colour to appear due to the action of transpiration?	ABCD