Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 39.4, Problem 1CC
Summary Introduction
To predict: The portions of tracheids that would be and would not be visible after staining lignin.
Introduction: The vascular tissues present in the plant body can be visibly differentiated on the basis of their structure and molecular composition. For the microscopic analysis of plant and animal tissues, the sample is cut into thin sections to obtain a slice that contains only one or a few layers of cells
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Mosses are very good at absorbing water. Peat moss, also known as sphagnum moss, is particularly good at holding water, which is why it is often used in horticulture to improve soil structure and drainage. If you made a wet mount of a sphagnum moss leaf on a microscope slide and observed it with a compound light microscope, it would look like the image on the right. In that image of the magnified leaf, label a water-holding cell, the location of photosynthetic cells, and a reinforcing rib.
5) How do mosses survive without vascular tissue?
We observed onion (Allium) root tip through the light microscope. We were asked "Was your onion root tip actively growing prior to being preserved?" What should I expect to see if it was actively growing?
2. a) As part of an experiment you are required to observe the external features of a fern.
State what microscope would you use and give reasons why?
b) You have been provided with a plant showing the rooting system and the stem with several leaves.
Give SIX features that you will look for to determine whether this is a monocotyledonous plant or a
dicotyledonous plant. Present your answer in a clear, logical manner.
c) In an experiment students were given the following materials and apparatus:
- juices from three local fruits; 4% glucose solution; Benedict's solution; test tubes,
beakers, syringes and boiling water bath.
Describe CLEARLY the procedure that can be used to estimate the amount of glucose
present in each juice. Use numbered steps in your answer.
Chapter 39 Solutions
Biology
Ch. 39.2 - Describe the direction of water movement when a...Ch. 39.3 - Prob. 1CSCh. 39.4 - Prob. 1CSCh. 39.4 - Prob. 1CCCh. 39.4 - Prob. 2CCCh. 39.4 - Prob. 3CCCh. 39.4 - Prob. 4CCCh. 39.4 - Prob. 5CCCh. 39.4 - Prob. 1EQCh. 39.4 - Prob. 2EQ
Ch. 39.4 - Prob. 6CCCh. 39.4 - Core Skill: Connections Look back to Figure 36.16,...Ch. 39 - Prob. 1TYCh. 39 - Prob. 2TYCh. 39 - Prob. 3TYCh. 39 - Prob. 4TYCh. 39 - Prob. 5TYCh. 39 - Which of the following statements best explains...Ch. 39 - What features of water explain how it can be drawn...Ch. 39 - Prob. 8TYCh. 39 - Prob. 9TYCh. 39 - Prob. 10TYCh. 39 - Prob. 1CQCh. 39 - Prob. 2CQCh. 39 - Prob. 3CQCh. 39 - Prob. 1COQCh. 39 - Prob. 2COQ
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- Someone gives you a plant structure that was found growing in the soil and asks you to determine whether it is root or an underground stem. How would you identify the plant part without a microscope? With a microscope?arrow_forwardSomeone gives you a plant structure that was found growing in the soil and asks you to determine whether it is a root or an underground stem. How would you do this without a microscope? With a microscope?arrow_forwardAs part of an experiment you are required to observe the external features of a fern. State what microscope would you use and give reasons why? You have been provided with a plant showing the rooting system and the stem with several leaves. Give SIX features that you will look for to determine whether this is a monocotyledonous plant or a dicotyledonous plant. Present your answer in a clear, logical manner. In an experiment students were given the following materials and apparatus: - juices from three local fruits; 4% glucose solution; Benedict's solution; test tubes, beakers, syringes and boiling water bath. Describe CLEARLY the procedure that can be used to estimate the amount of glucos present in each juice. Use numbered steps in your answer.arrow_forward
- They are using the 4x objective on the microscope Estimate the width of this root in micrometers. Walk through every step of the way you would do it, as if you are teaching a classmate how to figure out how big a root cell is.arrow_forwardWhile exploring a forest, you come upon a plant that you haven't seen before. You dig it up and take it back to your lab for further inspection. Back at the lab, you observe the characteristic structure of the plant and make some notes. Then, you carefully dissect the stems and leaves and look at the tissue under the microscope. Finally, you are able to determine the type of plant it is. Use the notes below to identify the class to which this plant belongs. Notes on physical characteristics of the specimen: the plant has no leaves or roots, but has hair-like rhizomes which anchors it in the soil the stems are highly branched sporangia are present at the ends of each stem dissection of the stem shows the presence of vascular tissue in the form of a xylem and phloemarrow_forwardtwo leaves A and B, each having the petiole in a closed test tube full of water. Each is hung on a spring balance. Leaf A has a waxy cuticle on the upper epidermis and stomata on the lower epidermis. Leaf B a waxy cuticle on the upper epidermis and a lower epidermis covered with petroleum jelly. Both leaves were cut from the same plant. i)Explain why it is important for the leaves to be cut from the same plant. (ii) List TWO variabes that must be kept constant in this investigation. iii) Table 6 shows the results obtained in the experiment: leaf and test tube weight final weight change in weight A 40.7 39.9 0.8 B 38.7 38.7 0.0 Explain why the weight of set up A, decreased. iv) Using your biological knowledge, indicate how results will change, if a fan is switched on near the experimental set up. Explain your answer.arrow_forward
- Show 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_forwardThe lower end of a plant stem is placed in water coloured with red dye. After three hours, the stem is cut as shown in the diagram. Which labelled region is stained red? B A D C O B O Aarrow_forwardLook at as shown. Vascular cambium is not present; it was located far above the top of the micrograph, but you can see there are six rows of wood cells. How many fusiform initials were involved in producing the wood visible in this figure? Look at all the cells in any particular row. Were all the cells of that row made by divisions of one fusiform initial or by many different fusiform initials?arrow_forward
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