Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
12th Edition
ISBN: 9780134605203
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Chapter 38, Problem 2Q
Summary Introduction
To analyze:
The purpose of rubbing leaf with sand or carborundum.
Introduction:
Infectious diseases or infections are caused by pathogens like
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Chapter 38 Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
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- Differentiate root hair from a branch root? Please write a correct and expert explanation. Thank you.arrow_forwardThe amount of sugar and oxygen that a leaf produces is related to the leafs ____arrow_forwardIf the two sides differ morphologically, the leaf is bifacial or dorsiventral. Otherwise, it is unifacial or isobilateral. Which term applies to the leaf in the photo?arrow_forward
- EXAMPLES OF TRANSDERMAL DRUG DELIVERY SYSTEM USE/S Other Description Transdermal Scopolamine Transdermal Nitroglycerin Transdermal Clonidine Transdermal Nicotine Transdermal Estradiol Transdermal Contraceptive Systemarrow_forwardIdentify if the following factors increase or decrease the rate of transpiration Prompts Submitted Answers High altitude Direct sunlight High humidity Low temperature Windy day Highly cutinized leaf Choose a match Increase Decrease Choose a match Choose a match Choose a matcharrow_forwardAccording to the text, What is the leaf margins are in these figures?arrow_forward
- Describe differences in color between the leaf which was fully exposed to sunlight and the one which was covered eith black paperarrow_forwardDefine frond, stipe, pinna, pinnule, sorus, indusium, false indusium and annulus. Stipe Pinna Pinnule Sorusarrow_forwarddescribe the difference in color between the leaf which was fully exposed to sunlight and the one which was covered with black paperarrow_forward
- two 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_forwardDefine the following terms ? A.) root hair B.) root caparrow_forwardSPECIMEN LEAF MODIFICATION SPECIALIZED FUNCTION Allium cepa Leaf base:Leaf stalk:Shape of leaves:Leaf Margins:Degree of lobing in leaf:Leaf tip:Leaf surface:Leaf texture: Aloe Vera Leaf base:Leaf stalk:Shape of leaves:Leaf Margins:Degree of lobing in leaf:Leaf tip:Leaf surface:Leaf texture: Bougainvillea spectabilis Leaf base:Leaf stalk:Shape of leaves:Leaf Margins:Degree of lobing in leaf:Leaf tip:Leaf surface:Leaf texture:arrow_forward
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