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What is biological energy transducers?
transforms one mode of energy to another.this is the fundamental physical basis of the sensory response of most biological systems to their environments.during oxidative phosphorylation conversion of chemical energy to muscle contraction and relaxation
What is a passing source of physical energy that produces a response in a a sense organ?
stimulants
What physical event represents the receipt of an intercellular signal?
The binding of a hormone to a receptor molecule which changes conformation in response.
Is perspiration a physical change?
It is a chemical change. Actually "Perspiration" is a noun defined as the chemical product produced by sweat glands. sweating is a physical response to increased body temperature. and the reaction to sweating is the physical cooling that takes place when sweat or perspiration evaporates and gives off heat energy.
Why physics is the basis of technology?
physics is the basis of technology
The phototropic response to light occurs where?
does phototropism plants response to light
What part of speech is phototropic?
Phototropic is an adjective.
Are shoots negatively phototropic?
No, they are positively phototropic as they grow towards light.
What is the physical basis of the phototropic response in plants?
Tropisms are growthg responses in plants in which the direction of growth depends on the direction of the stimulus. Phototropism is the response to light. The shoots of plants are positively phototropic (grow towards the light) while the roots are negatively phototropic (grow away from light).Experiments carried out in 1880 by Charles Darwin and his son Francis showed that the stimulus was detected by the tip of the shoot but the bending response took place just below the tip.In 1913 the Dutch plant physiologist Boysen-Jensen showed that a chemical substance produced in the tip of the shoot passed to the bending region to cause the response and that this substance passed down the shaded side of the shoot.F. W.Went extracted the growth substance which was identified as auxin. He showed that the phototropic response was due to the unequal distribution of auxin in the shoot. More auxin accumulates on the shaded side of the shoot and causes more rapid cell elongation on that side, so that the shoot bent over towards the light.See related links below
Are all the plants phototropic?
No,
What has the author David G Heathcote written?
David G. Heathcote has written: 'Investigation of wheat coleoptile response to phototropic stimulations' -- subject(s): Life sciences
What are the effects of the tropisms caused by light and gravity?
A tropism is a growth response whose direction is determined by the direction of the stimulus. Growth towards the stimulus is called a positive tropism. Growth away from the stimulus is called a negative tropism. The response to light is called phototropism. Shoots are positively phototropic, roots are negatively phototropic. The response to gravity is called gravitropism (or sometimes geotropism). Shoots are negatively gravitropic and roots are positively gravitropic. http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/T/Tropisms.html
What always the basis of behavior?
response to stimuli
How is a plant shoot positively photo tropic?
Phototropic is a word to describe if the plant moves towards light sources or away from light sources. Positively phototropic means it moves towards light. Most, perhaps all, plants will grow towards a light source. Plants need light energy so they have evolved to grow in the direction of the best light. Negatively phototropic means it moves away from light. Vampires are known to be negatively phototropic.
The basis for all behavior is the stimulus-response mechanism?
fales
How does a plant that is positively phototropic respond to light?
it grows towards the light.
What is a physical response to an antigen?
allergy.
