BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 4, Problem 6MCQ
Summary Introduction
Introduction:
Diffusion takes places in gases. They move from high concentration to low concentration. Diffusion can be simple or facilitated. The molecules do not require energy to move across the membrane in simple diffusion, whereas it required energy to move in case of facilitated diffusion.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A solution that conducts electricity must contain
Select one:
a. Hydrophobic molecules
b. Polar molecules
c. Ions
Imagine that you place a drop of red food coloring in a glass of water.At first, the red molecules remain concentrated where you placedthe drop, but the color eventually spreads throughout the water.This example illustrates a. hydrolysis.b. decreasing entropy.c. osmosis.d. diffusion
two of these statements are truths and one is a lie. Which of the following statements is a lie?
a.
The concept of pH is exclusive of how buffers work.
b.
Salts dissociate into ions (except H+ and OH-) when dissolved in water.
c.
ATP stores a large amount of potential energy.
Chapter 4 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 4.1 - Describe how your body has potential and kinetic...Ch. 4.1 - Prob. 2MCCh. 4.2 - Prob. 1MCCh. 4.2 - Prob. 2MCCh. 4.2 - Prob. 3MCCh. 4.3 - Prob. 1MCCh. 4.3 - Describe the relationship between energy-requiring...Ch. 4.4 - Prob. 1MCCh. 4.4 - Prob. 2MCCh. 4.4 - What is the role of negative feedback in enzyme...
Ch. 4.4 - Prob. 4MCCh. 4.5 - Prob. 1MCCh. 4.5 - What types of substances diffuse freely across a...Ch. 4.5 - What would happen to a plant cell in a hypertonic...Ch. 4.5 - Prob. 4MCCh. 4.5 - Prob. 5MCCh. 4.5 - Prob. 6MCCh. 4 - Prob. 1MCQCh. 4 - How does ATP participate in coupled reactions? a....Ch. 4 - How do proteins contribute to the function of an...Ch. 4 - Prob. 4MCQCh. 4 - Prob. 5MCQCh. 4 - Prob. 6MCQCh. 4 - Prob. 7MCQCh. 4 - Prob. 8MCQCh. 4 - How does ATP relate to membrane transport? a. The...Ch. 4 - Prob. 1WIOCh. 4 - Prob. 2WIOCh. 4 - Prob. 3WIOCh. 4 - Prob. 4WIOCh. 4 - Use what you know about enzymes to propose an...Ch. 4 - Considering that enzymes are essential to all...Ch. 4 - Prob. 7WIOCh. 4 - Prob. 8WIOCh. 4 - Prob. 9WIOCh. 4 - List three ways the content in this chapter...Ch. 4 - Golden knifefish use an electric field to detect...Ch. 4 - Review Burning Question 4.4, which explains how...Ch. 4 - Prob. 1PITCh. 4 - Prob. 2PITCh. 4 - Prob. 3PITCh. 4 - Prob. 4PIT
Knowledge Booster
Learn more about
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
- Consider molecule #1. How would these molecules arrange themselves when added to water? A. Would dissolve in water B. Would form a micelle C. Would form a bilayerarrow_forwardMatch the term with its correct description: a. transport protein b. active transport c. diffusion d. passive transport e. osmosis f. endocytosis g. exocytosis h. equilibrium The diffusion of water through a cell membrane The movement of substances through the cell membrane without the use of cellular energy Used to help substances enter or exit the cell membrane When energy is required to move materials through a cell membrane When the molecules of one substance are spread evenly throughout another substance to become balanced A vacuole membrane fuses (becomes a part of) the cell membrane and the contents are releasedarrow_forwardDifferentiate the following in terms of description and properties. a. Diffusion b. Active transport c. Osmosis d. Imbibitionarrow_forward
- The inside of a cell contains several buffers. These buffers help ensure that Select one: a. pH inside the cell changes rapidly to balance pH changes outside the cell b. pH inside the cell remains at equilibrium with the pH outside the cell c. pH inside the cell changes rapidly to help maintain the environment outside the cell d. pH inside the cell remains stable when extracellular pH changesarrow_forwardUse both diagrams AND full sentences to describe/explain what will happen in each of the following three scenarios. If you do not use a diagram or full sentences, you will not receive credit for your work. a. Red blood cells when placed in a hypertonic solution b. Red blood cells when placed in a isotonic solution c. Red blood cells when placed in a hypotonic solutionarrow_forwardBoth water and the cytosol of cells are hydrophilic. Select one: a. True b. Falsearrow_forward
- For osmosis in science, if you gargle with salt water why does your throat stop hurting?arrow_forwardMolecules in a fluid diffuse over time because A. they are pumped toward areas of higher concentration B. they want to create a concentration gradient C. they collide with each other and move randomly D. they are pulled towards areas of lower concentrationarrow_forwardWhich statement best fits the following diagram? The purplish dots are sugar molecules and the blue areas are water molecules. On the left side the water molecwles have a concentration of 99.1% and on the right side the water molecules have concentration of 99.9%. 1) The level of fluid on the left will rise because water will move by osmosis through the membrane. 2) The level of the fluid on the left will fall as water moves to the right by osmosis. 3) The level of the water on the left will rise as a result of sugar molecules diffusing through the membrane. 4) The level of the water on the left will fall as sugar molecules diffuse through the membrane.arrow_forward
- Which of the listed are serving as transporters? Select one: a. Lipids O b. Carbohydrates O c. Proteins O d. Waterarrow_forwardDefine the following terms: a. osmosis b. osmotic pressure c. membrane potential d. isotonic solution e. structured waterarrow_forwardWhat type of energy helps drive the passive processes of diffusion, osmosis, and facilitated diffusion? (Pick ALL correct statements involved with this.) In other words what are all the TRUE statements regarding these processes? Select one or more: a.random motion which increases when temperature increases b.ATP energy c.random motion which increases when molecules have large molecular weight d.random motion which increases when molecules concentration decreases e.random motion which increases when molecules concentration increases f.random motion which decreases when temperature decreases g.random motion which increases when molecules have low molecular weightarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license