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Bell Work – 11/9 - pg. 184

Bell Work – 11/9 - pg. 184. ALL BAGS ON FLOOR PLEASE!!!

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Bell Work – 11/9 - pg. 184

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  1. Bell Work – 11/9 - pg. 184 ALL BAGS ON FLOOR PLEASE!!! Because diffusion depends upon __(1)__ particle movement, substances __(2)__ across membranes without requiring the cell to use __(3)__. Even when __(4)__ is reached, particles of a solution will continue to move across the __(5)__ in both __(6)__. Please date bellwork!!!

  2. Bell Work – 11/13– pg. 184-185 Please Date Bell Work In a solution, particles __(1)__ constantly. As a result, the particles tend to move from an area where __(2)__ to an area where __(3)__, a process known as __(4)__. When the concentration of the solute is the same throughout a system it is said to be at __(5)__. Osmosis is the diffusion of __(6)__ through a __(7)__ membrane. ALL BAGS ON FLOOR PLEASE!!!

  3. Bell Work – 10/26 - pg. 185 ALL BAGS ON FLOOR PLEASE!!! __(1)__ will tend to move across the membrane until __(2)__ is reached. At that point, the concentrations of water and sugar will be the same on both sides of the __(3)__. When this happens the two solutions will be __(4)__. When the experiment began, the more concentrated sugar solution was __(5)__. The dilute sugar solutions was __(6)__.

  4. Bell Work - 11/1 - pg. 187 ALL BAGS ON THE FLOOR PLEASE!!! A few molecules such as __(1)__, seem to pass through a __(2)__ much more quickly than they should. How does this happen? Cell membranes have __(3)__ that make it easy for certain molecules to cross the __(4)__. Red blood cells, for example, have a cell membrane __(5)__ with an internal channel that allows __(6)__ to pass through.

  5. Bell Work - 11/2 & 11/3 - pg. 185 ALL BAGS ON THE FLOOR PLEASE!!! __(1)__ will move across the membrane until __(2)__ is reached. At that point the concentrations of water and sugar will be the same on both sides of the __(3)__. When this happens the two solution will be __(4)__, which means “same strength”. When the experiment began, the more concentrated sugar solution was hypertoinc which means “__(5)__”. The dilute sugar solution was __(6)__ or “below strength.”

  6. Bell Work – 11/4 – pg. 182 Answer the following questions in short sentences: • Why do solutions undergo diffusion? • What is osmosis? • Describe the difference between hypertonic and hypotonic. All bags on the floor please!!! Please date bell work!!!

  7. Bell Work - 11/3 - NOTES ALL BAGS ON THE FLOOR PLEASE!!! Answer the following questions: • What three criteria must all problem statements meet? • What variable in an experiment is measured? • What variable in an experiment is changed? • What do we call factors in an experiment that stay the same? • What is the name of the group used for comparison?

  8. Bell Work – 11/7 – pg. 188 All bags on the floor please!!! As powerful as __(1)__ is, cells sometimes must move materials in the opposite direction-against the __(2)__ difference. This is accomplished by the process known as __(3)__. As its name implies, active transport requires __(4)__. The active transport of __(5)__ or __(6)__ is generally carried out by transport proteins or __(7)__ that are found in the cell membrane. Please date bell work!!!

  9. Bell Work – 11/8 – pg. 188 All bags on the floor please!!! Small molecules and __(1)__ are carried across membranes by __(2)__ in the membrane that act like __(3)__ pumps. Many cells use such proteins to move calcium, __(4)__, and sodium ions across cell membranes. Changes in __(5)__ shape seem to play an important role in the pumping __(6)__. Please date bell work!!!

  10. Bell Work – 11/9 – pg. 71 All bags on the floor please!!! Using the food web on page 71 answer the following questions: • Identify a producer in the food web. • Identify a carnivore in the food web. • What type of consumer (herbivore, carnivore, etc…) is the Sandhopper? • What would happen to the Shrew population if the Grasshopper was removed? Please date bell work!!!

  11. Bell Work – 11/10 – pg. 93 Identify the following examples as mutualism, commensalism, or parasitism. • A tick feeds on the blood of a deer and may carry disease-causing microorganisms. • A barnacle attaches itself to the fin of a whale, not harming the whale in any way. • An orchid sits in the branch of a tree receiving rainwater runoff, not harming the tree at all. • Flowers are pollinated as pollen sticks to the bodies of insects when the insects receive nectar from the flowers. Please date bell work!!! All bags on the floor please!!!

  12. Bell Work – 11/11 – NOTES Identify the organelles from the functions below. • The control center of the cell. • The site where proteins are assembled and transported throughout the cell. • What is the difference between rough and smooth ER? • Which three organelles are found primarily in plant cells. Please date bell work!!! All bags on the floor please!!!

  13. Bell Work – 11/14 – NOTES Identify the organelles from the functions below. • Sorts, modifies, and packages proteins for transport through the cell. • Uses enzymes to breakdown materials for the cell to use. • Is the site of protein synthesis. • Creates energy from the food you eat for the cell to use. Please date bell work!!! All bags on the floor please!!!

  14. Bell Work – 11/15 – FOLDABLE Answer the questions about cellular transport below: • Glucose is too large to naturally diffuse through the cell membrane. How does it enter the cell? • What material diffuses during osmosis? • Diffusion is the movement of particles from ____ concentration to ____ concentration. • In order to work, what does active transport require? • What materials moves against the concentration gradient during active transport? Please date bell work!!! All bags on the floor please!!!

  15. Bell Work – 11/16 & 11/17 Moe thinks that both Curly and Larry are off base in their pea gardening philosophy. Moe believes that fertilizer brand is not as important as fertilizer concentration. Moe sets up an experiment in which he grows four pea plants at different concentrations of fertilizer to see what grows the highest. • Write a problem statement. • What is the IV and DV? • Write a hypothesis. Please date bell work!!! All bags on the floor please!!!

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