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A. Escuchar un párrafo: “Mi viaje de verano”. Listen to the following passage about Laura’s summer vacation. First, review the comprehension questions below. Then, listen to the audio. Based on what you hear, determine whether each statement is Cierto or Falso. If the information is not mentioned, select No se menciona (not mentioned). (1 pt. each; 7 pts. total) 1. Laura decidió hacer un viaje para descansar un poco [blank1] 2. Antonia pasó por la casa de Laura para hacer los planes [blank2] 3. Pagaron 450 dólares por el viaje [blank3] 4. Salieron por la mañana el primer día [blank4] 5. Antonia y Laura compraron muchos recuerdos en cada ciudad [blank5] 6. Estuvieron de vacaciones por una semana en total [blank6] 7. Fue una experiencia muy divertida, y además económica [blank7]

Using the diagram below, identify in which direction each shape will diffuse. Purple Pentagons: [P] Blue Stars: [B]

Name the 3 major functions of the plasma membrane.

A scientist compares the cholesterol content of the plasma membranes in the cells of an animal from Idaho with the cells of one from the Death Valley. Which will have the higher amount of cholesterol in their membrane?

In which type of endocytosis will the cell use small vesicles to bring small molecules into the cell and transport them through the cell for their release on the other side?

Using the diagram below, determine if this is active or passive transport.

The movement of water across a selectively permeable membrane is called __________________.

A scientist compares the cholesterol content of the plasma membranes in the cells of an organism from Idaho with the cells of one from Antartica. Which organism will have the least amount of cholesterol in their membrane?

Explain in your own words the Fluid Mosaic Model and how it applies to plasma membranes.

Why do ions have a difficult time getting through plasma membranes despite their small size?