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Quiz Chapter 3: Transportation

10 questions · Form 3 Science Bab 3: Transportation

10 questions · plays in fullscreen

Full Question List & Answer Key

Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.

1. Why is blood group AB considered the universal recipient?

  1. Red blood cells of group AB carry no antigens on their surfaces
  2. Plasma of group AB contains neither Anti-A nor Anti-B antibodies
  3. Group AB blood contains both Anti-A and Anti-B antibodies in plasma
  4. Red blood cells of group AB contain only O antigens
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Answer: B

Blood group AB plasma lacks both Anti-A and Anti-B antibodies, so donor red blood cells with A or B antigens will not be agglutinated.

2. What is the term given to the transport of soluble organic products of photosynthesis through phloem tissue?

  1. Transpiration
  2. Translocation
  3. Osmosis
  4. Guttation
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Answer: B

Translocation is the process by which phloem tissue transports dissolved organic sugars from source leaves to sink tissues.

3. Which heart valve separates the left atrium from the left ventricle?

  1. Tricuspid valve
  2. Bicuspid (Mitral) valve
  3. Semilunar valve
  4. Aortic valve
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Answer: B

The bicuspid valve (mitral valve) is located between the left atrium and left ventricle.

4. Which environmental factor speeds up the transpiration rate when its value increases?

  1. Air humidity
  2. Wind speed
  3. Carbon dioxide concentration
  4. Atmospheric pressure
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Answer: B

Increased wind speed blows away water vapor accumulating near leaf stomata, maintaining a steep concentration gradient for faster evaporation.

5. What is the primary suction force that moves water from plant roots up through the xylem to the leaves?

  1. Translocation force
  2. Transpiration pull
  3. Gravitational pull
  4. Photosynthetic pressure
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Answer: B

The evaporation of water from stomata creates a suction force called transpiration pull, drawing a continuous water column up xylem vessels.

6. A person with blood group O can safely donate blood to which blood groups?

  1. Group O only
  2. Group AB only
  3. Groups A and B only
  4. Groups A, B, AB, and O
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Answer: D

Blood group O red cells carry neither A nor B antigens, so they will not trigger antibody reactions in any recipient group (universal donor).

7. How many heart chambers are present in the circulatory system of a adult frog?

  1. 2 chambers (1 atrium, 1 ventricle)
  2. 3 chambers (2 atria, 1 ventricle)
  3. 4 chambers (2 atria, 2 ventricles)
  4. 1 chamber
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Answer: B

Amphibians like frogs have a 3-chambered heart consisting of two atria and a single shared ventricle.

8. What structural feature distinguishes veins from arteries?

  1. Veins have thicker muscular walls than arteries
  2. Veins possess internal valves to prevent blood backflow
  3. Veins carry blood away from the heart under high pressure
  4. Veins have walls that are only one cell thick
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Answer: B

Veins carry low-pressure blood toward the heart and contain internal valves along their length to prevent backflow.

9. Which vertebrate class possesses a single circulatory system where blood flows through the heart only once per complete circuit?

  1. Pisces (Fish)
  2. Amphibia
  3. Reptilia
  4. Aves (Birds)
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Answer: A

Fish have a single circulatory system: deoxygenated blood goes from the 2-chambered heart to gills, then directly to body tissues, and back to the heart.

10. Why do simple unicellular organisms like Amoeba sp. not require a complex transport system?

  1. They have a small surface area-to-volume ratio
  2. They have a large surface area-to-volume ratio allowing rapid direct diffusion
  3. They do not require oxygen for survival
  4. Their outer membrane is impermeable to water and nutrients
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Answer: B

Simple unicellular organisms have a large SA/V ratio, allowing nutrients and oxygen to diffuse quickly and directly across their cell membrane.

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