EBK BIOLOGY
5th Edition
ISBN: 9780100667976
Author: Maier
Publisher: YUZU
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Question
Chapter 24, Problem 2AAATB
Summary Introduction
To write:
The reason for the bushy appearance of houseplants when the primary growing tip is cut off.
Introduction:
Growth in plants is affected by factors like the type of soil, availability of light and the length of growing season. The increase in the length of the shoots and roots of plants is known as primary growth. This growth occurs due to the cell division in the apical meristem of the shoot.
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Oscar and Lucinda meet in a tropical rain forest and fall in love, and he carves their initials into the bark of a tree. They never do get together, though. Ten years later, still heartbroken, Oscar searches for the tree. Given what you know about primary and secondary growth, will he find the carved initials higher relative to ground level? If he goes berserk and chops down the tree, what kinds of growth rings will he see?
Plant roots develop differently from plant shoots during primary growth. Explain:
How is the formation of lateral roots different from making new branches on shoots?
Why don't roots and shoots generate new primary growth the same way?
The horsetails are
special, in a way, due to their secondary xylem.
Select the correct response:
True
False
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- Oscar and Lucinda meet in a tropical rain forest and fall in love, and he carves their initials into the bark of a tree. They never do get together, though. Ten years later, still heartbroken, Oscar searches for the tree. Given what you know about primary and secondary growth, will he find the carved initials relative to ground level? If he goes berserk and chops down the tree, what kinds of growth rings will he see?arrow_forwardWhat is the difference between the apical meristem and lateral meristem? shoot apical meristems lateral meristems root apical meristems Apical meristemic tissue is responsible for primary growth at the root and shoot tips. Lateral meristemic tissue is responsible for secondary growth with an increase in diameter of the stem. Apical meristemic tissue is responsible for secondary growth with an increase in diameter of the stem. Lateral meristemic tissue is responsible for primary growth at the root and shoot tips. Lateral meristematic tissue is only found in annual plants. O Apical meristemic tissue is only found in woody plants.arrow_forwardBoth cohesion-tension and root pressure are mechanisms for moving water in the xylem. What does it mean when it says that cohesion-tension pulls water, but root pressure pushes water?arrow_forward
- 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?arrow_forwardleaves fall off when growers place plastic sleeves to cover the plant because of poor circulation and the lack of oxygen causes the plants not to breathe. Even though, the sleeves are a temporary fit for transport and shipping, what other items do you think the growers can use instead of the plastic sleeves to help?arrow_forwardShow the sequence of secondary growth by drawing the row of cells from the boxed area below and labeling the vascular cambium cell (V), 5 xylem cells from oldest (X1) to youngest (X5), and 3 phloem cells (P1 to P3). Show what happens after growth continues by drawing and labeling a row with twice as many xylem and phloem cells. How does the vascular cambium’s location change? A pear has a hard texture but juicy. State two cells that give the characteristics? State the function of the transitional epithelium found in the mammalian urinogenital system. (i) Identify type of tissue lines the air sacs of the lungs. (ii) Explain how the tissue named in (i) adapted to its function.arrow_forward
- 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 itarrow_forwardShooting is preferred to regenerate first than rooting. Why?arrow_forwardEngineers have designed a smaller version of such a container that can be used to seal off a small part of the plant. One version of this device, called a leaf chamber, is shown below. When a scientist uses this device on a plant, they don’t need to break the leaves off the branch or stem they are attached to. The leaf chamber makes an airtight seal around the stem or branch even though it is sticking out of the chamber. Using this device, scientists detected the most change in O2 and CO2 levels inside the chamber when a leaf is in the chamber. They only detected a small change in O2 and CO2 levels in the chamber when a green stem was placed in the chamber. No change was detected when a root or a brown stem was placed in the chamber. Why do you think a scientist would prefer not to remove the leaves from a tree or a plant in order to take these sorts of measurements?arrow_forward
- Owners and managers of plant nurseries have to plan lighting schedules for a long-day plant that will flower in February. What lighting periods will be most effective? What color of light should be chosen?arrow_forward#12 Complete the sentences about primary growth. (In the first blank select the best number that completes the sentances... in the second blank select the best letter that completes the sentance) Primary growth happens NUMBER 1 or 2 plants, and allows the plant to grow LETTER A or B 1. at the immature tips of 2. in mature regions of ----------------------- A. Taller b. Thickerarrow_forwardIf the shoot apical meristem gets broken off due to bad weather or damage, what type of tree growth you expect to observe in the immediate future? The tree would grow wider instead of taller. The tree would not show any growth but would stay healthy and alive. The tree roots would grow deeper within the soil, but no growth would occur above ground. The tree would grow taller instead of wider. The tree growth would be uneven in many different directions.arrow_forward
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