Tag: control and co-ordination in plants and animals

Understanding directional growth responses (tropisms) and non-directional movements (nasties) in plants including phototropism, geotropism, chemotropism, hydrotropism, thigmotropism, and related hormonal mechanisms.

structure and function of neuron

Questions about hormones regulating gastrointestinal functions including gastrin, secretin, cholecystokinin, GIP, VIP, enterogastrone, and their effects on digestive organs

Study of the thymus gland: its structure, functions in immune system development, T-lymphocyte maturation, hormonal secretions (thymosin), and age-related atrophy.