Coordination and Response (2.45-2.53)

Endocrine glands

________ have a good blood supply to get hormones in the blood stream as soon as possible to reach target organ.

Auxins

________ will always move away from sunlight and towards gravity.

pupil reflex

The ________ controls the level of light that enters the eyes.

Negative feedback

________: If conditions deviate from normal, body will not function properly.

Sensory neurone

________ sends electrical impulses to spinal cord (CNS)

Insulin

________- Causes liver to use blood glucose and covert it to glycogen for storage inside liver cells.

→ Insulin

________ causes blood sugar levels to fall and glucagon causes blood sugar levels to rise.

Receptors

________ have to be complementary to hormones for there to be an effect.

Phototropism

________: is a response where the stimulus is light.

sense organs

Eyes are ________ containing receptor cells sensitive to light (rods) and color (cones)

Geotropism

________: (also called gravitropism) is a response where the stimulus is gravity.

Glucagon

________- Causes the liver to convert glycogen to glucose and release it into the blood.

insufficient insulin

Type 1 diabetes: Caused by ________ production.

Hormone

________: Chemical substance produced by glands and carried by blood to alter activity of target organs.

Homeostasis

________: Maintaining constant internal environment.

Coordination

________ is acheived by the endocrine system and nervous system.

Negative tropisms

________- the plant grows away from the stimulus.

Nervous system

________ allows us to make sense of surrounding and respond and to coordinate and regulate body function.

Endocrine system

________: Group of glangs producing hormones.

Blood sugar levels

________ are controlled by two hormones that are secreted by the pancreas.

Hormones

________ only affect cells with target receptors that the ________ can bind to.

Sense organs

________: Group of receptor cells responding to specific stimuli.