Students used vinegar in order to dissolve away the shells of eggs and used the eggs as a model of human red blood cells. The students observed the changes in the eggs when they were placed in different solutions.
Complete the statement to explain why the egg in corn syrup got smaller.
The water concentration inside of the egg was the water concentration in the corn syrup, therefore the water molecules the egg.
The diagram below shows cellular activity across a cell membrane.
Which two processes does this diagram model?
In animal intestinal cells, the calcium-ion pump moves calcium ions against a concentration gradient across the cell membrane.
What type of transport is used, AND why is this type of transport necessary?
Read the question carefully. Then enter your answers in the box provided.
The lungs exchange gas with our blood to maintain homeostasis. When we breathe in, there is a high concentration of oxygen in our lungs and a low concentration of oxygen in our blood.
This movement of oxygen molecules from a high to low concentration is an example of what type of cell transport?
The structure most responsible for maintaining cell homeostasis is the
The cell membrane plays an important role in maintaining homeostasis by controlling what goes in and out of the cell.
Which type of molecule makes up the MAJORITY (most) of the cell membrane?
What is another name for the cell membrane?
What are the functions of the cell membrane represented in this diagram?
Select TWO correct answers.
Match the word with the definition
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Passive Transport | arrow_right_alt | How molecules are brought in and out of cells |
Active Transport | arrow_right_alt | When molecules move from a high concentration to a low concentration until balance is reached (with the gradient)- without energy |
Cell transport | arrow_right_alt | When molecules are moved from a low concentration to a high concentration (against the gradient)- using energy |
Which option below best describes the concentration of molecules after passive transport?
As a result of diffusion, osmosis, and facilitated diffusion, the concentration of molecules...
A student conducted an experiment with Orbeez. She placed her Orbeez in a cup of water overnight and observed the results the next day.
Which of these best explains the results shown?
Osmosis occurs when molecules move the concentration gradient from a concentration.
These molecules will continue moving until is reached.
Determine which statements apply to each type of transport.
Move against the concentration gradient | Ends in equilibrium | |
|---|---|---|
Diffusion | ||
Protein Pump | ||
Osmosis | ||
Endo/Exocytosis |
Identify the concentrations observed in the diagram below.
Move ONE correct answer to each box. Not all answer choices will be used.
Which table correctly identifies how the plasma membrane (cell membrane) contributes to the maintenance of cellular homeostasis?
The tables below indicate the characteristics each type of transport has by using an "X".
Which of the following tables correctly identifies the characteristics of each type of cell transport?
The triangle represents glucose molecules after digestion.
Based on the diagram above, the glucose molecules will move from into because the molecules move .
Label the various examples of active and passive transport below.
A model of the cell membrane with various methods of transport is shown below. Identify each example as active or passive transport.
The type of transport used in this diagram is transport and it is necessary because .
The type of transport used in this diagram is transport and it is necessary because .
Section 1 represents because it moves molecules .
Section 2 represents because it moves molecules .
Human Intestines have specialized cells that function in nutrient absorption. These cells have tiny finger-like projections that take in as many nutrients from digested food as possible.
The diagram below shows a specialized cell taking in nutrients for further absorption, which are packaged into vesicles and transported into the cell using energy.
This is an example of transport because the nutrients digested move the concentration gradient.
