Test: Coordination & Response - Year 11 MCQ

Sensory neurons are responsible for carrying information from sensory receptors (such as those in the skin, eyes, and ears) to the brain where it is processed.

The relay neuron, located in the spinal cord, processes the information from the sensory neuron and decides the appropriate response.

A synapse converts the electrical impulse of a neuron into a chemical signal (neurotransmitter) that crosses the synaptic gap to transmit the signal to the next neuron.

The lens of the eye focuses light onto the retina, allowing for clear vision.

Insulin, produced by the pancreas, regulates blood glucose levels by facilitating the uptake of glucose into cells.

Homeostasis aims to maintain stable internal conditions, such as temperature and pH, despite changes in the external environment.

To cool down the body, blood vessels dilate, and sweating increases, allowing heat to be released more effectively.

Auxins are plant hormones that promote growth towards light (phototropism) by elongating cells on the shaded side of the plant.

Pulling your hand away from a hot surface is a reflex action that occurs automatically and rapidly without conscious thought.

The retina contains photoreceptor cells (rods and cones) that detect light and convert it into electrical signals for visual processing.