CAMPBELL BIOLOGY IN FOCUS (LL)-W/MOD.MA
3rd Edition
ISBN: 9780135686065
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 29.1, Problem 3CC
WHAT IF? Some plants can detect increased levels of light reflected from leaves of encroaching neighbors. This detection elicits stem elongation, production of erect leaves, and less branching. How do these responses help the plant compete?
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Please help this is hw and I want to know why I'm wrong
Why do many plants use pathways that detect light to regulate their flowering?
Selected Answer:
This allows plants to link flowering to temperature, which corresponds to the season when conditions are optimal
Answers:
This allows plants to link flowering to day length, which corresponds to the season when conditions are optimal
Flower petals carry out high levels of photosynthesis and require high light conditions
This allows plants to link flowering to temperature, which corresponds to the season when conditions are optimal
A minimum amount of light is always necessary for flowering
Based on the cohesion-tension theory, what could be the potential
shortfall and how would plant overcome this shortfall? *
• On a commercial scale, enhancing the level of _______ (hormone) can help to speed up fruit ripening. • What measure do fruit producers take to slow down fruit ripening that is caused by natural ethylene?• What is a ‘triple response’. Which plant hormone initiates a triple response? • A change in the ratio of ethylene to auxin controls abscission. In the autumn, the amount of __________ decreases, rendering the cells of the abscission layer more sensitive to __________.
Chapter 29 Solutions
CAMPBELL BIOLOGY IN FOCUS (LL)-W/MOD.MA
Ch. 29.1 - Why is long-distance transport important for...Ch. 29.1 - Prob. 2CCCh. 29.1 - WHAT IF? Some plants can detect increased levels...Ch. 29.2 - If a plant cell immersed in distilled water has a...Ch. 29.2 - How would a reduction in the number of aquaporin...Ch. 29.2 - WHAT IF? What would happen if you put plant...Ch. 29.3 - Prob. 1CCCh. 29.3 - WHAT IF? If an element increases the growth rate...Ch. 29.3 - Prob. 3CCCh. 29.4 - Prob. 1CC
Ch. 29.4 - Prob. 2CCCh. 29.4 - Prob. 3CCCh. 29.5 - A scientist adds a water-soluble inhibitor of...Ch. 29.5 - WHAT IF? Suppose an Arabidopsis mutant lacking...Ch. 29.5 - Prob. 3CCCh. 29.6 - Prob. 1CCCh. 29.6 - WHAT IF? If you buy cut flowers, why might the...Ch. 29.6 - Prob. 3CCCh. 29.7 - Prob. 1CCCh. 29.7 - Prob. 2CCCh. 29.7 - Prob. 3CCCh. 29 - Which structure or compartment is part of the...Ch. 29 - Prob. 2TYUCh. 29 - Prob. 3TYUCh. 29 - What would enhance water uptake by a plant cell?...Ch. 29 - Prob. 5TYUCh. 29 - Compared with a cell with few aquaporin proteins...Ch. 29 - Two groups of tomatoes were grown in the...Ch. 29 - Prob. 8TYUCh. 29 - Prob. 9TYUCh. 29 - SCIENTIFIC INQUIRY A Minnesota gardener notes that...Ch. 29 - Prob. 11TYUCh. 29 - FOCUS ON INTERACTIONS The soil in which plants...Ch. 29 - Prob. 13TYU
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- What If? After growing carrots for one season, agardener decides that the carrots are too small. Sincecarrots are biennials, the gardener leaves the crop in theground for a second year, thinking the carrot roots willgrow larger. Is this a good idea? Explain.arrow_forwardWhat are two environments in which CAM plants have an adaptive advantage? why is it that they have this adaptive advantage?arrow_forwardPredict whether flowering in a short day plant with a minimum critical length of 14 hours would be expected to occur in the following situations. The plant is exposed to 15 hours of daylight and 9 hours of darkness uninterrupted. The plant is exposed to 9 hours of daylight and 15 hours of darkness. The plant is exposed to 9 hours of daylight and 15 hours of darkness, with 10 minutes exposure to red light in the middle of the night.arrow_forward
- Can you answer all the parts to this question please In shoot apical meristems, the peripheral zone (PZ) genetic program maintains indeterminacy and allows lateral primordia initiation. (a) Explain how the PZ genetic program control (1) meristem maintenance, (2) organ separation, and (3) organ differentiation/leaf primordia outgrowth using the following keywords: KNOX genes, cytokinins, gibberellin, auxin, CUC, and AS1. (b) Explain how this genetic program is used in the formation of compound leaves. (c) Please use KNOX PZ genetic module as an example to explain process homology during compound leaf evolution.arrow_forwardPhenolics, spines, terpenes, cutins, defense related proteins and suberin are some examples of plant defense. Plants are evolving to put up a fight against plant pathogen invasion. (i) Classify them into TWO (2) main classes of plant defense. (ii) What are the roles of terpenes in plant defense?arrow_forwardWatch the suggested videos for Plants Response to Stimuli. a. GeotropismGeotropism Experiment (2:48 minutes)https://www.youtube.com/watch?v=AEo5UsPeB5gb. PhototropismPhototropism Experiment (2:16 minutes)https://www.youtube.com/watch?v=WZ1NRP3OF5w a. For each experimental set up (geotropism and phototropism), identify the dependent and independent variables that have contributed to how plants responded to the stimuli.arrow_forward
- Which type of the following play a role in the gravitropic response of plants according to the statolith hypothesis? amyloplasts chloroplasts receptors calcium ions O O O Oarrow_forwardGrass plants elevate their leaves to compete for light without exposing their shoot apical meristems to grazing animals by: O growing their leaves from persistent meristematic zones at the leaf base. never elévating the shoot apical meristem. using axillary meristems to proctce leaves. O inducing protein inhibitors through the jasmonic acid responsearrow_forwardPlant cells communicate in a variety of ways to elicit cellular responses. In the figure below the plant is responding the presence of light with the release of auxin. Auxin was first discovered for its ability to promote growth in plants. It is a plant hormone that inhibits the lengthening and stimulate the formation of lateral roots and root hairs. (c) Explain how the behavioral responses of the plant affect their overall fitness. ( refer to picture )arrow_forward
- The winding of grape vine tendrils around a trellis support is an example of Negative phototropism Positive thigmotropism thigmonasty Negative gravitropism A circadian rhythmarrow_forwardwhich is true regarding how auxin impacts bending of plants? auxin increases reversible bending (elasticity) auxin causes the increase of proteins that embed in between cellulose in the cell wall auxin travels to the sunny side of the stem to change growth auxin causes an increase in cell division that results in blending 2. Select all that are true regarding plant responses trophic responses are reversible, repeatable movements independent of the position of the stimulus venus fly trap responses are an example of a nastic movement phytochrome only enters the nucleus to change gene expression when in the active form (Pfr) shade or far red light converts the inactive phytochrome (Pr) to the active form (Pfr)arrow_forward. Using your answers from questions 1-4, describe in detail the phototropic response in plants. Describe in your answer the specific role of 1. PHOT1 and PHOT2 2. Auxin (role in phototropism and cell elongation) • Previous Next MacBook Pro G Search or type URL esc & @ 23 $ 3 4 5 7 9 * 00arrow_forward
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