Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Chapter 2, Problem 13CTQ
Why can some insects walk on water?
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Chapter 2 Solutions
Concepts of Biology
Ch. 2 - Figure 2.3 How many neutrons do (K) potassium-39...Ch. 2 - Magnesium has an atomic number of 12. Which of the...Ch. 2 - Which type of bond represents a weak chemical...Ch. 2 - An isotope of sodium (Na) has a mass number of 22....Ch. 2 - Which of the following statements is not true? a....Ch. 2 - Using a pH meter, you find the pH of an unknown...Ch. 2 - The pH of lemon juice is about 2.0, whereas tomato...Ch. 2 - An example of a monosaccharide is ________. a....Ch. 2 - Cellulose and starch are examples of______. a....Ch. 2 - Phospholipids are important components of_______....
Ch. 2 - The monomers that make up proteins are...Ch. 2 - Why are hydrogen bonds and van der Waals...Ch. 2 - Why can some insects walk on water?Ch. 2 - Explain why water is an excellent solvent.Ch. 2 - Explain at least three functions that lipids serve...Ch. 2 - Explain what happens if even one amino acid is...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The opening which water exits these organisms is known as? What is the Class organism 1 belongs to? What is the Class that organism 2 belongs to? What is the body layout of organism 1?arrow_forwardWhy is water necessary for life?arrow_forwardHow does cholestrol affect membrane fluidity? 1- it tends to increase the fluidity 2- it doesn't have any specific effect on fluidity 3- membranes doesn't have cholesterol 4- it tends to decrease the fluidityarrow_forward
- Eating salty food is bad for our health. Does adding water to salty soup decreases the amount of salt in it? Explain your answer.arrow_forwardDescribe the phenomenon (what problem needs to be solved?) of water and milk bubblesarrow_forwardWater molecules tend to diffuse in response to their own concentration gradient. How can water be more or less concentrated?arrow_forward
- she scientifi evidence that supports th the production of copper crystals in this as exper physical changes. What to Do: PART 1: Use these key words below to fill Solute solvent salt blue chemical sugar sodium chloride You would have come across many crystals and some of the most common one crystals used to sweeten tea or coffee, which is used in cooking and is common You can grow beautiful blue crystals using a copper sulphate solution. A solution is a mixtur is dissolved in a Solution known as SalE called formed when a such a water. PART 2: Complete the equipment list and read through the method for th experiment.arrow_forwardWhat role does the cohesive nature of water play in living systems? Give at least three examples.arrow_forwardAs water cools below 4°C, it expands and becomes less dense. Why is this beneficial to organisms living in a lake during a cold winter?arrow_forward
- You are stranded on a lifeboat with several other people in the middle of the ocean. You have run out of clean drinking water and are very thirsty. The others have started to drink the seawater to quench their thirst. Since you’re waiting for rescue (and are a top notch AP Biology student), you decide to solve a couple of water potential problems to determine if drinking sea water is a good idea or not. a) The majority of dissolved ions in seawater is NaCl, roughly a 0.5M concentration. The ionization constant of NaCl is 2.0. Calculate the solute potential for seawater if you know that the water is 2°C. b) Your own cells have a 0.15M concentration. Calculate the solute potential for your own cells, knowing that body temperature is 37°C. c) Using your knowledge about water potential, if you drink the seawater, wat will happen when the seawater comes into contact with your body’s cells? Note: ΨP for animal cells is zeroarrow_forwardA student nypotneSizes that the solute concentration of grape juice is nigner than the solute concentration the actual grape because the grape juice has added sugar. Based on the data in Table 1, which of the following best evaluates the student's hypothesis? TABLE 1. PERCENT CHANGE IN MASS OF PEELED GRAPES IN SOLUTIONS Concentration of Solution Solution Percent Change in Mass (weight/volume) Distilled water 0% 13.48% NaCI 20% -23.39% Tap water 0.8% 9.46% Grape juice 2.1% 2.8% Grape soda 13% -15.00% The hypothesis is supported because the mass of the grape decreased in the grape juice. The hypothesis is not supported because the mass of the grape increased in the grape juice. The hypothesis is not supported because the grape was isotonic to the grape juice. The hypothesis is supported because the grape juice has a greater solute potential than the grape has. O O Oarrow_forwardplease see attachedarrow_forward
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