Worksheet Chapter 1: Stimuli and Responses

1. True or False: Phototropism in plant shoots is a negative response where stems grow away from sunlight.

2. State the five basic tastes that can be detected by sensory receptors on the human tongue.

3. A person struggles to read books up close because images form behind the retina. Name this vision defect and state the type of lens needed to correct it.

4. A student accidentally touches a hot kettle and immediately pulls their hand away before feeling pain. Trace the pathway of impulse transmission involved in this reflex action.

5. Fill in the blank: The central nervous system consists of the brain and the ____________.

6. Explain how stereophonic hearing assists animals in pinpointing sound sources and explain how ultrasound echolocation benefits bats hunting at night.

7. Explain why a person suffering from a cold often experiences a reduced sense of taste when eating food.

8. Compare stereoscopic vision and monocular vision in terms of eye position, field of view, and primary advantage.

9. Describe the main operational differences between tropism and nastic movement in plants, giving one example for each.

10. True or False: Reflex actions are involuntary responses controlled directly by the spinal cord to protect the body from danger.