BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 39, Problem 1S
Summary Introduction
To determine:
The process, in which the long white sprouts are formed with tiny leaves in the potatoes when kept in a dark cupboard and to explain the behavior of the potatoes.
Introduction:
The potatoes are grown using the two methods: true seeds of potatoes and small potatoes. The small potatoes are used to grow the new potatoes because they form tiny shoot tike structures on it.
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Growers often wrap potted plants in plastic sleeves prior to shipping. If plants remain in these sleeves too long, their leaves curl and fall off. Imagine you are working at a garden center and have been asked to make a presentation to a local garden club. how can growers avoid problems for example when it comes to plastic sleeves how can we fix it
Do you agree that it is the stem that
is growing? Why or why not?
Notebook Entry 1
My seed has begun to
grow. I think the thing
coming out of the split seed
is the stem. It will begin to
grow up in a few more
days. Later, the root will
begin to grow.
We used seedlings of Lepidium sativum to see under which conditions it would germinate in an experiment. We'd use cotton wool and dampen it, and placing the seedlings at the bottom. Depending on which bottle it was, some were mixed with dampened cotton wool, and others didn't have cotton wool that were dampened. Then the opening of the bottle was covered, except for one which was covered with a lid. (See the picture).
Now, I have to explain my results in my lab report. I can't find a solid source on what factors that cause the germination of seedlings. I've covered cellular respiration, and photosynthesis, but I don't know how to proceed from here. Bear also in mind that there's no soil in which the seed is germinating, so I will have to be able to explain this.
Second of all, could you clue me in on how moisture is important for the germination of seedlings? Should I also bring up the physiology of seedlings and how they're growing?
Chapter 39 Solutions
BIOLOGY
Ch. 39.1 - Compare the pigments phytochrome and chlorophyll.Ch. 39.1 - List growth responses influenced by phytochrome.Ch. 39.1 - Prob. 3LOCh. 39.2 - Prob. 1LOCh. 39.2 - Prob. 2LOCh. 39.3 - Prob. 1LOCh. 39.3 - Prob. 2LOCh. 39.3 - Prob. 3LOCh. 39.4 - Prob. 1LOCh. 39.4 - Prob. 2LO
Ch. 39.4 - Identify the types of biological molecules that...Ch. 39.5 - Discuss properties of hormones.Ch. 39.5 - Prob. 2LOCh. 39.5 - Prob. 3LOCh. 39 - Prob. 1DACh. 39 - Prob. 1IQCh. 39 - Prob. 2IQCh. 39 - Propose a mechanism to explain how seedlings could...Ch. 39 - Which of the following is stimulated by blue...Ch. 39 - Prob. 2UCh. 39 - Prob. 3UCh. 39 - Prob. 4UCh. 39 - Which of the following does NOT happen as a seed...Ch. 39 - Dwarf mutants can sometimes be induced to grow...Ch. 39 - Prob. 1ACh. 39 - If you were to plant a de-etiolated (det2) mutant...Ch. 39 - Prob. 3ACh. 39 - Which of the following defects would prevent...Ch. 39 - You have come up with a brilliant idea to stretch...Ch. 39 - You have identified a mutant Arabtdopsis plant...Ch. 39 - Which of the following might not be observed in a...Ch. 39 - Prob. 1SCh. 39 - Prob. 2SCh. 39 - The current model for gravitropism suggests that...Ch. 39 - Prob. 4S
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- When you look at a head of cabbage or lettuce, what are you seeing? Where is the stem? What about when you look at an onion? What are you seeing and where is the onion’s stem?arrow_forwardA student reporting on a project said that one of her seeds did not grow properly because it was planted upside down, so it got confused and tried to grow down. Should the teacher accept this explanation? Why or why not?arrow_forwardA short-day plant flowers only when exposed to light for less than 12 hours long. Which of the following would cause the plant to flower? * O a 13-hour night and 11-hour day with 1 minute of darkness after 6 hours a 12-hour day and 12-hour night with a flash of red light an 8-hour day and 16-hour night with a flash of white light after 8 hours O a 9-hour night and 15-hour day with 1 minute of darkness after 7 hours 24 hours of continuous lightarrow_forward
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