COMPILED 1

Nerve impulses are waves of chemical and electrical signal change that is conducted along the membrane of a neuron, which is basically from sensory neuron to interneuron to motor neuron.

Cytoplasm composes the bulk of cellular material and provides a suspension medium for organelles and free-floating molecules.

Motor neurons relay the processed message to the tissues in the body, such as the muscles for action.

Sensory neurons detect stimuli and transmit signals to the brain.

Myelin covers the axon, which speeds up the travel of the nerve impulses.

The synapse is a tiny gap between two adjacent neurons.

Neurons are the basic functional unit of structure and function of the nervous system.

Dendrites are thread-like structures that branches from the cell body.

The cell body is the largest part of a neuron.

The axon terminal is a feather-like fibers that is found at the far end of the axon and they pass on messages to the dendrites of other neurons.

Positive tropism is the type of tropism that grows towards the stimulus.

Ethylene is volatile gas used to control the timing of fruit maturation.

Heliotropism is a type of tropism that is in response to tracking the sun’s direction.

Gibberellin is a hormone that works together with auxin to keep the stem and leaves growing upward and the roots growing downward.

Light is the most important stimulus for plants.

Skototropism is a type of tropism wherein plants grow away from the light.

Auxin is the hormone that fosters cell elongation in phototropism and gravitropism.

Tropism is the process of growth in a certain direction in response to stimulus.

Oligosaccharins is a nonconventional hormone that plays an important role in protecting the plant against fungal and bacterial infections on the site of injury.

Cytokinin is the hormone that is responsible for delaying the senescence in plants and promotes differentiation of meristems in shoots and roots.