Concept explainers
To explain: The effect on functions of a cell if the plant cell wall or animal extracellular matrix were impermeable.
Concept introduction: Plant cell wall is situated outside the cell membrane. It differentiates the animal cell from the plant cell. Plant cell wall is composed of cellulose but the exact chemical composition varies from species to species. Cells in plant and animal are organized into tissues. Neighboring cells are connected with plasmodesmata in plant and gap junctions in animal. Animal cells have extracellular matrix that include collagen, fibronectin, and proteoglycans. It forms a network of molecular fibers. It forms cytoplasmic channels which is continuous with cytoplasm of the neighboring cells. It allows the passage of ions, amino acids, sugar molecules and various molecules. It is helpful in maintaining cell to cell environment and work together in harmony.
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Chapter 6 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
- 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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