While eukaryotic cells are generally larger than prokaryotic cells, metabolic requirements place upper limits on how large eukaryotic cells can become. Which of the following statements does not accurately describe this? As multicellular organisms grow in size, they do not have larger cells; rather, they have a larger number of cells. As a cell increases in size, the surface area grows faster than volume. If a cell is too large, there will not be enough surface area for the exchange or elimination of oxygen, nutrients, and wastes. The surface area to volume ratio must remain as large as possible

Cholesterol has which of the following effects on the plasma membrane of an animal cell? it makes the membrane more rigid at low temperatures, and more fluid at high temperatures it makes the membrane more rigid at both low temperatures and high temperatures it makes the membrane more fluid at high temperatures, and more rigid at low temperatures it makes the membrane more fluid at both high temperatures and low temperatures it makes the membrane more fluid at low temperatures, and more rigid at high temperatures

The table below, and the following page, provides a format to summarize information about structures and organelles of typical eukaryotic cells. Complete the table using the list provided and by referring to a textbook and to other pages in this topic. Fill in the final three columns by writing either 'YES' or 'NO'. The first Cell Component Double layer of phospholipids (cated the lipid bayer Proteins Cell Structures and Organelles inner membrane membrane Crista Ribosomes Transport Transvesicles from the smooth endoplasmic reticum Smooth Matrix Stroma Flattened membranace Grana comprise stacks of tylko (a) Lamella (b) Secretory vesicles budding of (c) (d) Cistema Hough V budding off (1) Name: Location: Function: Name: Location: Function: Name: Location: Function: Name: Location: Function: Name: Location: Function: Name: Location: Function: cell component has been completed for you as a guide and the log scale of measurements (top of next page) illustrates the relative sizes of some…

2) Explain how the following cell transport systems work moving materials around inside the cell and other functions. Focus on structure and function, and Include how energy is used to accomplish these movements. A)Tubulin/Kinesin B)Actin/Myosin

Microvilli are commonly seen in cells involved in absorption of materials (like intestinal cells) because:      none of the above     they move cells forward     they produce greater surface area of plasma membrane     they move substances forward

Match the following with the term that best describes them                                                             integral part of the plasma membrane                                                             can easily cross the semi-permeable plasma membrane                                                             cellular currency of cell that enables it to transport molecules against the concetration gradient (i.e active transport)                                                             act as channels carriers to transport polar molecules like sugars into cells A. phospholipids B. proteins C. ATP D. oxygen

CELL ENVIRONMENTS Fill in the following statement: Diffusion is the movement of molecules from_high_concentration to_low. concentration. is the diffusion of water. BEAKER #I The solution inside the beaker is: % water % salt The solution inside the cell is: 90 10 % water % salt 20% salt How will the water move? Into the cell or out of the cell? 10% salt How will the movement of water affect the cell? The cell O Water molecules This is a(n) solution.