1. Microscopic cells or particles suspended in water exhibit atype of movement known as
_______________________________________________________________________.
2. The yeast cells in suspension appear to jiggle back and forthbecause they are bombarded
by the ______________ energy of water molecules which are inconstant, rapid, random
motion.
3. The movement of the molecules of a gas, liquid, or solid froma region of higher
concentration of that substance to a region of lesserconcentration is termed
____________________________.
4. What are 2 factors that influence the rate of diffusion?
5. ______________ is the diffusion of a solvent across aselectively permeable membrane.
6. In ______________________, water moves out of a plant cell byosmosis causing the
protoplast to shrivel up.
7. In __________________, water moves into an animal cell byosmosis causing the cell to
swell and burst.
8. The process of ________________ can be used in treatingkidney patients to separate
urea (small molecules) from proteins (large molecules) using aselectively permeable
membrane.
9. Which type of solution (hypotonic or hypertonic) is formed inthe soil environment
around root cells when a lawn is over fertilized? Would the rootcells lose or gain water?
10. Why is it common practice to place lettuce and celery inwater before serving them?
1. Microscopic cells or particles suspended in water exhibit atype of movement known as
_______________________________________________________________________.
2. The yeast cells in suspension appear to jiggle back and forthbecause they are bombarded
by the ______________ energy of water molecules which are inconstant, rapid, random
motion.
3. The movement of the molecules of a gas, liquid, or solid froma region of higher
concentration of that substance to a region of lesserconcentration is termed
____________________________.
4. What are 2 factors that influence the rate of diffusion?
5. ______________ is the diffusion of a solvent across aselectively permeable membrane.
6. In ______________________, water moves out of a plant cell byosmosis causing the
protoplast to shrivel up.
7. In __________________, water moves into an animal cell byosmosis causing the cell to
swell and burst.
8. The process of ________________ can be used in treatingkidney patients to separate
urea (small molecules) from proteins (large molecules) using aselectively permeable
membrane.
9. Which type of solution (hypotonic or hypertonic) is formed inthe soil environment
around root cells when a lawn is over fertilized? Would the rootcells lose or gain water?
10. Why is it common practice to place lettuce and celery inwater before serving them?
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Related textbook solutions
Related questions
1. Which of the following best describes a condition where a membrane separates two solutions that are NOT in equilibrium?
A | a rainbow |
B | equilibrium |
C | a homogeneous solution |
D | neighboring solutions that have unequal concentrations of molecules |
2. In this lab, we will use dialysis tubing to....
A | simulate biological membranes |
B | separate blood from urine |
C | turn starch blue |
D | turn starch brown |
3. Biological membranes have different types of pores and channels, and different permeability to small molecules depending on size and charge. In this lab, you can assume that the dialysis tubing we are using are permeable to....
A | starch |
B | water and potassium iodide |
C | complex sugars |
D | small animals |
4. Kinetic energy is a property of the atom, and also of more complex structures such as molecules. You can actually see kinetic energy of non-living things in action under the microscope. When we visualize this, we call what we see...
A | diffusion |
B | Brownian motion |
C | osmosis |
D | all of the above |
5. One word to describe the effect of water diffusion across a membrane, which alters the water pressure on one side of the membrane with respect to the other is....
A | osmosis |
B | lysis |
C | aquaporin |
D | equilibrium |
6. Suppose that you place a red blood cell in a hypertonic solution containing penetrating molecules. In this environment, you would expect the cell to eventually
A | swell and burst |
B | shrink |
C | remain the same in size |
D | photosynthesize |
7. For the "egg lab", what is the main objective?
A | to determine which egg has more mass |
B | to determine which egg is hypertonic to the other |
C | to determine which solution the egg is placed in is hyper- or hypo-tonic solution |
D | to determine which egg is isotonic with the egg |
8. The main difference between a 'prediction' and a 'hypothesis', is that predictions....
A | are framed as an "if...then...because" statement |
B | are framed as a general statement |
C | are framed as an "always....true" statement |
D | are framed as an "correct....incorrect" statement |
9. Read each of the following procedural steps for plasmolyzing Elodea sprig and then select the correct order below.
Locate a region of healthy cells and sketch a few adjacent cells
Sketch the plasmolyzed cell
While touching one corner of the coverslip with a piece of Kimwipe to draw off the
water, add a drop of concentrated salt solution to the opposite corner
Obtain a leaf from an Elodea or Water sprite plant
A | 4, 2, 3, 1 |
B | 3, 1, 4, 2 |
C | 2, 3, 1, 4 |
D | 4, 1, 3, 2 |
1) Which of the following is a component of a vertebrate kidney? (Select all correct choices.) | |||||||||||||||||
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2)
In organisms, the ability to control osmosis depends on the properties of the plasma membranes of individual cells. Based on their ability to permit the free movement of water and some solutes, these membranes are best described as: (select all correct choices) | |||||||||||||||||
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3)I selected cortex; inner medulla, it was wrong.
The loops of Henle create a concentration gradient in the interstitial fluid surrounding the loop, with the concentration highest in the ____________ and lowest in the ____________ of the kidney. | |||||||||||||||||
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4)
The main solutes in the filtrate as it enters the distal convoluted tubule are: (select all correct choices) | |||||||||||||||||
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5) Ensure all correct choices are selected, for this question I only selected osmosis and it was wrong,
Water moves by: (select all correct choices) | |||||||||||||||||
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6)
Compared to sexual reproduction, asexual reproduction: (select all correct choices) | |||||||||||
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7)
A key difference between hormonal regulation of the reproductive systems of males and females is that: | |||||||||||
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8)
True or false: In response to LH and FSH, ovaries secrete estrogen and progesterone. | |||||
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9)
During the luteal phase of the menstrual cycle, if the oocyte is not fertilized, a number of events occur which are listed below. Select the answer that places the events in the correct chronological order. | |||||||||||
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10)
If an antibody is missing its Fc fragment, what would happen if this antibody encounters its target antigen in the bloodstream? Select all correct choices. | |||||||||||
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11)
If an individual carries a mutation that results in a complete lack of MHC class I proteins, how would the individualâs immune response be affected? Select all correct choices. | |||||||||
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12)
Which of the following statements is true regarding T cell receptors? Select all correct choices. | |||||||||||
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