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Questions and Answers
Who proposed the idea of chemical messengers being responsible for the formation and growth of plant organs?
Who proposed the idea of chemical messengers being responsible for the formation and growth of plant organs?
- Charles Darwin
- Gregor Mendel
- Louis Pasteur
- Julius Von Sachs (correct)
What term did Julius Von Sachs use to refer to the chemical messengers responsible for organ formation in plants?
What term did Julius Von Sachs use to refer to the chemical messengers responsible for organ formation in plants?
- Growth Stimulators
- Organic Initiators
- Organ-forming Substances (correct)
- Botanical Messengers
In what decade was the first chemical messenger, auxin, identified in plants?
In what decade was the first chemical messenger, auxin, identified in plants?
- 1930s (correct)
- 1940s
- 1950s
- 1960s
Which of the following is NOT one of the major classes of chemical messengers identified in plants?
Which of the following is NOT one of the major classes of chemical messengers identified in plants?
What is another common name for plant hormones or growth regulators?
What is another common name for plant hormones or growth regulators?
According to Julius Von Sachs, what external factor could affect the distribution of organ-forming substances within a plant?
According to Julius Von Sachs, what external factor could affect the distribution of organ-forming substances within a plant?
Which plant hormone was the first chemical messenger identified in the 1930s?
Which plant hormone was the first chemical messenger identified in the 1930s?
What term is commonly used to refer to the substances that trigger or initiate biochemical processes resulting in organ formation or growth in plants?
What term is commonly used to refer to the substances that trigger or initiate biochemical processes resulting in organ formation or growth in plants?
Which of the following external factors did Julius Von Sachs suggest could influence the distribution of organ-forming substances within a plant?
Which of the following external factors did Julius Von Sachs suggest could influence the distribution of organ-forming substances within a plant?
What did Julius Von Sachs call the substances responsible for the formation and growth of different plant organs?
What did Julius Von Sachs call the substances responsible for the formation and growth of different plant organs?
Which of the following classes of chemical messengers is NOT one of the five major classes identified in plants as mentioned in the text?
Which of the following classes of chemical messengers is NOT one of the five major classes identified in plants as mentioned in the text?
What concept did later work suggest instead of specific organ-forming substances being present in plants?
What concept did later work suggest instead of specific organ-forming substances being present in plants?
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