NAME:______
CELLS + CELLULAR TRANSPORT REVIEW SHEET
1. Consider the following diagram of a cell membrane. Label each of the listed letters with one of the following terms. (Choices may be used once or more than once)
Phospholipid Bilayer, Phospholipid, Surface Protein, Transport Protein, Carbohydrate, Phosphate Group, Fatty Acid Chains.
2. Briefly explain the difference between passive transport and active transport.
3. Consider the following diagram on transport:
a. What process does lab setup A represent?
b. What is the name for the condition that is exhibited by beaker #3?
c. What part of a cell does structure Z represent?
d. Explain why the sugar molecules are unable pass through structure Z.
4. The diagram below shows the changes that occurred in a beaker after 30 minutes. The beaker contained water, food coloring, and a bag made from dialysis tubing membrane. When the colors yellow and blue are combined, they produce a green color. Describe and explain the relative sizes of the yellow and blue food-coloring molecules in the diagram?
5. A student weighed pieces of a potato and then placed them in sucrose solutions of varying concentrations. After one day, she removed the pieces of potato and reweighed them. The data she obtained is listed in the chart below. Answer the following questions based on the chart.
Potato / % Sucrose / Initial Mass (g) / Final Mass (g) / Change in Mass (g)1 / 0 / 3.0 g / 6.4 g / 3.4 g
2 / 20% / 3.0 g / 4.2 g / 1.2 g
3 / 40% / 3.0 g / 2.8 g / -0.2 g
4 / 60% / 3.0 g / 2.2 g / -0.8 g
5 / 80% / 3.0 g / 1.6 g / -1.4 g
6 / 100% / 3.0 g / 0.5 g / -2.5 g
a. Which number (1-6) potatoes were placed in a hypertonic solution? Explain how you know.
b. Which number (1-6) potatoes were placed in a hypotonic solution? Explain how
you know.
c. What is the % of solutes within the potato cell? EXPLAIN HOW YOU OBTAINED THIS NUMBER. (NO credit given without an explanation)
6. Movie theaters often sell moviegoers very salty popcorn. After consuming a large quantity
of popcorn you find yourself extremely thirsty and decide to buy a drink. Using your
knowledge of biology, explain why you are so thirsty.
7. Consider the following diagram of an onion cell under a compound light microscope:
a. What type of solution was used to obtain the image on the right hand side?
b. What is the name for the condition of the onion cell on the right hand side?
8. Consider the following two diagrams of cellular transport. Which cell is showing active transport? EXPLAIN how you know. (NO CREDIT given without an explanation)
9. Make a chart comparing the similarities and differences between pinocytosis and
phagocytosis.
10. Put the following structures in proper order from SMALLEST to LARGEST: Organs,
Organelles, Tissues, Organ systems, Cells
SMALLEST ______
______
______
______
LARGEST ______