Hormonal and Nervous Signalling
a group of tissues working together that carry out a specific function
Organs
Signals from all receptor cells are conveyed to the
CNS
What hormone affects impacts the SA node to increase heart rate durng vigourous activity?
Epinephrine (adrenaline)
Name one benefit of phototropism
Increased the amount of light absorbed by a shoot's leaves for use in photosynthesis
In second grade, which USA president punched his music teacher in the face?
Trump
How do hormones travel?
through the bloodstream
What detect changes in the external environment or internal conditions?
Receptor cells
What is another name for the "Pacemaker" of the heart?
SA node
Name two roles of phytohormones
-Control of growth
-Plant development
-Responses to stimuli
What's the hardest part of the human body?
Tooth (enamel)
_______ = how components communicate and coordinate
System integration
Role of motor neurons
Receive signals via synapses with interneurons (from cns to effectors)
What is the normal pH range of blood?
7.35-7.45
Main structural components of plant cell walls
Cellulose
Who is known as the ‘One Punch Man’?
Saitama.
is the duration of response for the nervous system long or short-lasting?
short
Which gland control the secretion of melatonin?
Pineal Gland
What nerves increase or decrease heart rate?
Vagus nerve and Sympatheitic Nerve
Why does fruit ripen?
Seed dispersal
The shortest war in history was between Zanzibar and the UK. How long did the war last?
38 minutes
The spinal cord is located
Inside the inside the vertebral column (backbone)
-control of skeletal muscle contraction
-precise coordination of movements
-maintain posture
-balance
-helps us with activities requiring motor memory
What are required for auxin to enter the cell cytoplasm?
Auxin Efflux Carriers
Many fruits are stimulated to ripen by (what?)
Ethylene
The largest living single organism on Earth is a what?
Fungus