5 Written questions
5 Matching questions
- Endocrine system
- Effector neurons
- Affector neurons
- a Sytstem of ductuless glands that produce hormones which are released directly into the bloodstream.
- b Loss of water from the surfaces of a plant.
- c Neurons that transmit information about changes in external or internal conditions to the central nervous system. Also called sensory neurons.
- d Neurons which transmit information from the central nervous system to muscle cells or glands. Also called motor neurons.
- e The net movement of water across a partially permeable membrane without an input of energy and down a concentration gradient.
5 Multiple choice questions
- In animals, chemicals produced in endocrine glands that are released into and transported via that bloodstream to other parts of the body where they act.
- Exntension of a nerve cell along which impulses are transmitted away from that cell.
- Endocrine attached to the hypothalamus. Influences the production of thyroxine by the thyroid gland.
- The part of the nervous system that is comprised of the brain and spinal cord.
- Excretory organs involved in osmoregulation.
5 True/False questions
Tolerance range → Nerve cells found within the CNS which communicate between affector and effector neurons.
Hypothalamus → Organisms whose body temperature is maintained by internal metabloic sources.
Poikilothermic → Organism that is able to maintain an internal body temperature within a narrow range. Endothermic.
Adaptations → Loss of water from the surfaces of a plant.
Antifreeze → Waxy outer layer on a leaf.