Regulation of systems
Osmoregulation in Vascular Plants - Maintaining Water Balance
Water Regulation in Plants.pdfWATER BALANCE IN VASCULAR PLANTS
Presentation describes how vascular plants achieve water balance, including the involvement of plant hormones in regulation.
Root absorption
Describes process of absorption of water through the root system.
Opening and Closing of Stomata
Describes the mechanism of stomatal opening and closing.
Uses of Plant Hormones
Describes different ways in which plant hormones can be used.
Human Survival in a Range of Environments
Human survival in a range of environments.pdfHUMAN SURVIVAL IN A RANGE OF ENVIRONMENTS
PDF of presentation describing homeostasis and mechanisms for how this is achieved including the stimulus response model and negative feedback loops.
Nervous System #1
Crash Course video describing the nervous system and the role it plays in coordinating and controlling the body.
Nervous System #2
Crash Course video describing how electrical messages are sent along neurons and how these are achieved.
Nervous System #3
Crash Course video describing synapses - how messages are sent between neurons.
Endocrine System #1
Crash Course video describing the role of the endocrine system, focusing on glands and hormones
Endocrine System #2
Description of hormone cascades. Includes thyroid gland hormones and related diseases as main example.