(B)
To describe: The three changes that occur in the visual pigments during the photoreception.
Introduction: The visual pigments are the light absorbing molecules that facilitate the process of visual pathway. It consists of an apoprotein called opsin, which is the integral membrane protein with seven transmembrane regions. There are two photoreceptor cells present in the retina, namely rods and cones.
(C)
To identify: The requirement of ATP molecule during the photoreception.
Introduction: The photoreception is the mechanism of light detection that results in vision. It is the response to the light stimuli. There are two photoreceptors cells present in the retina. They are rod cells and cone cells. These cells contain visual pigments called rhodopsin and photopsin that detect the light stimuli and convert them into the electro-chemical impulses.
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Chapter 15 Solutions
MOD MAST A&P W/PEAR ETEXT INST VIS ANA
- What is the opening indicated by the pointer? (leaf x.s.) stomate guard cell lenticel intercellular space none of thesearrow_forwardIdentify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forward
- Identify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forwardIdentify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forward
- What type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forwardWhat specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forward
- Identify the tissue. parenchyma collenchyma sclerenchyma ○ xylem O phloem O none of thesearrow_forwardPlease answer q3arrow_forwardRespond to the following in a minimum of 175 words: How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients? What are some potential ethical issues associated with using this technology? Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.arrow_forward
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