Biology

Plant Transport and Physiology

1,834 Questions

Access a comprehensive set of questions on plant transport mechanisms and physiological adaptations. Topics include water movement, translocation of food, and plant responses to external stimuli. These biology questions are essential for medical entrance exams and other science competitive tests.

Xylem and phloem transportTranspiration and evaporationPlant adaptationsGeotropic and phototropic responsesWater absorption by rootsRespiration in roots

Plant Transport and Physiology Questions

Multiple choice
  1. a only

  2. b only

  3. c only

  4. b and c

  5. a, b and c

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer as both the statements are correct.

Multiple choice
  1. It is because it stores starch.

  2. It is because it bears scale leaves.

  3. It is because it is swollen.

  4. It is because it has a brown thin cover.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Presence of scale leaves qualifies a potato to be a stem.

Multiple choice
  1. mesophytes

  2. hydrophytes

  3. xerophytes

  4. halophytes

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Xerophytes (plants adapted to dry conditions) show the most advanced morphological and physiological adaptations including reduced leaves, thick cuticles, sunken stomata, extensive root systems, and CAM photosynthesis. While hydrophytes and halophytes also have adaptations, xerophytic adaptations are most diverse and specialized.

Multiple choice
  1. Gravitational water

  2. Hygroscopic water

  3. Combined water

  4. Capillary water

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Capillary water is held in soil pores by surface tension and is the primary water source available to plant roots. Gravitational water drains away, hygroscopic water is too tightly bound to soil particles, and combined water is chemically bound in minerals.

Multiple choice
  1. Photosynthesis

  2. Mechanical support

  3. Protection

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Stipules perform all the functions, i.e. photosynthesis, support and protection, depending upon the way they are modified.

Multiple choice
  1. gum & resins

  2. oxygen

  3. carbon dioxide

  4. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plants excrete waste materials in solid or semi-solid forms like gums, resins, latex, and rubber. These substances are byproducts of plant metabolism that are stored in specialized cells or ducts. Oxygen and carbon dioxide are involved in gas exchange, not excretory waste secretion in this context.