BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 39.2, Problem 1LO
Summary Introduction
To identify: The structures in cells that perceive gravity.
Introduction: Plants are mainly multicellular, predominantly photosynthetic eukaryotes of kingdom Plantae. The parts of plants include the stem, roots, leaves, flowers, fruits, and seeds. Plants perform the process of photosynthesis by which plants capture the energy of sunlight and use carbon dioxide from air to make their own food.
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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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- Define accommodation (aka adaptation) of receptors and give two examples of such.arrow_forwardExplain why different types of receptor cells and neural circuits are required for day and night vision.arrow_forwardDescribe the general process of transduction in a receptor that is a cell separate from the afferent neuron. Include in your description the following terms: specificity, stimulus, receptor potential?arrow_forward
- Q: What wavelength do you use to measure absorbance of cellsuspension? What color does that wavelength associate with?arrow_forwardMatch the following statements to the type of cell in the eye each describes (rods or cones). Select "Both" if the statement is true of both cell types. Rods Directly detects light coming into the eye. Different types of this cell Cones respond to different wavelengths (colors) of light. More sensitive to low levels of light. Rods Found in high concentrations at the fovea centralis. Cones < <arrow_forwardWhat three types of mechanoreceptors respond to stretching, compression, twisting, or other distortions of the cell membrane?arrow_forward
- List the four kinds of information obtained from sensory receptors, and describe how the nervous system encodes each type;arrow_forwardWhen you stand on a foam pad with eyes closed In a BESS test, the primary sensory input for balance is A) Vision В Somatosensation C) Vestibular D) Olfactionarrow_forwardDraw a labelled diagram of the eye and discuss the mechanism ofphototransduction in rod and cone cells.arrow_forward
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