Practice Tropisms with authentic MYP MYP Biology exam questions for both SL and HL students. This question bank mirrors Paper 1, 2, 3 structure, covering key topics like cell biology, genetics, and ecology. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of MYP examiners.
If a plant shoot is kept in a dark room and the hormone auxin is concentrated only on the left side of the shoot, what is the most likely growth response?
Which statement correctly describes the redistribution of auxin in a plant shoot during phototropism?
True or False: In a plant shoot exhibiting phototropism, cells on the side of the stem furthest from the light source elongate more than cells on the side facing the light.
In the context of plant survival, why is positive gravitropism in roots considered an essential adaptive outcome?
A plant shoot is exposed to light equally from all directions. Which of the following describes the distribution of auxin and the resulting growth of the shoot?
Tropisms are critical for survival because they act as a mechanism for __________, ensuring the plant maximizes its resource acquisition.
The specialized cells in a root that contain dense starch grains used for sensing gravity are known as __________.
Which of the following plant structures typically exhibits negative gravitropism?
Topic 9.3: Growth in plants
Why are plant tropisms considered to be "controlled growth responses"?
If a plant stem is placed horizontally, auxin accumulates on the lower side. How does this affect the stem's growth compared to a root in the same position?
Practice Tropisms with authentic MYP MYP Biology exam questions for both SL and HL students. This question bank mirrors Paper 1, 2, 3 structure, covering key topics like cell biology, genetics, and ecology. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of MYP examiners.
If a plant shoot is kept in a dark room and the hormone auxin is concentrated only on the left side of the shoot, what is the most likely growth response?
Which statement correctly describes the redistribution of auxin in a plant shoot during phototropism?
True or False: In a plant shoot exhibiting phototropism, cells on the side of the stem furthest from the light source elongate more than cells on the side facing the light.
In the context of plant survival, why is positive gravitropism in roots considered an essential adaptive outcome?
A plant shoot is exposed to light equally from all directions. Which of the following describes the distribution of auxin and the resulting growth of the shoot?
Tropisms are critical for survival because they act as a mechanism for __________, ensuring the plant maximizes its resource acquisition.
The specialized cells in a root that contain dense starch grains used for sensing gravity are known as __________.
Which of the following plant structures typically exhibits negative gravitropism?
Topic 9.3: Growth in plants
Why are plant tropisms considered to be "controlled growth responses"?
If a plant stem is placed horizontally, auxin accumulates on the lower side. How does this affect the stem's growth compared to a root in the same position?