Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 4, Problem 4MCQ
Summary Introduction
Introduction: Being an energy source and fuel is one of the glucose molecule's main roles. Glucose is a soluble, widely available chemical energy source that is used by plants as well as animals. It can be burned in the cytoplasm and mitochondria to produce energy along with carbon dioxide and water.
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Students have asked these similar questions
The movement of molecules from an area of low concentration outside of the cell membrane to an area of high concentration within a cell membrane is most likely which of the following types of transport?
a. exocytosis
b. diffusion
c. endocytosis
d. osmosis
Glucose is often present in very low concentrations in environments populated by microorganisms. To import the maximum amount of available glucose, cells use
a. Receptor-mediated endocytosis
b. Simple diffusion
c. Osmosis
d. Facilitated diffusion
The image illustrates passive and active transport across the cell membrane.
(Use the diagram to answer questions A-C)
A.
1. Which section shows active transport?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not?
B.
1. Which section shows diffusion?2. What type of solute molecules may be moved by this type of transport?
C. Which of these sections are considered passive transport? Explain.
Chapter 4 Solutions
Biology: Concepts and Investigations
Ch. 4.1 - What are some examples of the work of a cell?Ch. 4.1 - Prob. 2MCCh. 4.1 - Prob. 3MCCh. 4.1 - Prob. 4MCCh. 4.2 - What is metabolism on a cellular level?Ch. 4.2 - Prob. 2MCCh. 4.2 - Prob. 3MCCh. 4.3 - What are the main parts of an ATP molecule?Ch. 4.3 - Prob. 2MCCh. 4.3 - Describe the relationships among endergonic...
Ch. 4.4 - Prob. 1MCCh. 4.4 - Prob. 2MCCh. 4.4 - Prob. 3MCCh. 4.4 - Prob. 4MCCh. 4.4 - List three conditions that influence enzyme...Ch. 4.5 - What is diffusion?Ch. 4.5 - What types of substances diffuse freely across a...Ch. 4.5 - Prob. 3MCCh. 4.5 - Prob. 4MCCh. 4.5 - Prob. 5MCCh. 4.5 - Prob. 6MCCh. 4.6 - How does a knifefish adjust its electric field?Ch. 4.6 - Prob. 2MCCh. 4 - Prob. 1MCQCh. 4 - Building proteins _____ energy; ATP hydrolysis...Ch. 4 - How does an enzyme affect the energy of a...Ch. 4 - Prob. 4MCQCh. 4 - Prob. 5MCQCh. 4 - Some people claim that lifes high degree of...Ch. 4 - List some examples of endergonic and exergonic...Ch. 4 - Why do electron transport chains release energy?Ch. 4 - Provide an example of an appliance that uses...Ch. 4 - Name at least four ways that a cell uses ATP.Ch. 4 - Use what you know about enzymes to propose an...Ch. 4 - Prob. 7WIOCh. 4 - Prob. 8WIOCh. 4 - Prob. 9WIOCh. 4 - Liver cells are packed with glucose. If the...Ch. 4 - Prob. 1PITCh. 4 - Prob. 2PITCh. 4 - Prob. 3PIT
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Similar questions
- A young man in his 20s has a heart attack and is rushed to the hospital. Blood is drawn, and his cholesterol level is tested and found to be very high. The doctor tells him that he has a genetic condition in which he is unable to effectively remove LDL particles containing cholesterol from his blood and into his cells. Which cellular process is not functioning normally? a. channel-mediated facilitated diffusion b. receptor-mediated endocytosis c. exocytosis d. simple diffusion?arrow_forwardThe image illustrates passive and active transport across the cell membrane. (Use the diagram to answer questions A-D) A. 1. Which section represents facilitated diffusion?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not?5. What type of solute molecules may be moved by this type of transport? B. 1. Which section shows active transport?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not? C. 1. Which section shows diffusion?2. What type of solute molecules may be moved by this type of transport? D. Which of these sections are considered passive transport? Explain.arrow_forwardWhich of the following can enter the cell by diffusion through the plasma membrane? A. salts B. glucose C. phospholipids D. carbon dioxidearrow_forward
- Explain the process and give an example of each form of cellular transport. a. Passive Diffusion b. Active Transport c. Facilitated Diffusionarrow_forwardWhich of the following explains why a cell's size is limited? a The cell membrane increases too fast for the cytoplasm to keep up with its reactions. b The cell membrane becomes rigid. c The cell membrane cannot supply enough substances to support organelles in the center. d The cell membrane is too large to allow for transport.arrow_forwardWhich of the following molecules can pass freely through the interior of the cell membrane? a. carbohydrates b. lipids c. amino acids d. DNAarrow_forward
- If you added many phospholipids to some water, they would spontaneously orient themselves into something resembling a membrane! Describe why this occurs.arrow_forwardWhich of the named systems is isotropic? Select one: a. Endoplasmic reticulum membrane b. Nuclear membrane C. Matrix of mitochondria d. Plasma membranearrow_forwardThe sodium-potassium pump helps to maintain electrolyte gradients through use of ATP. Which of the following best describes this type of transport? a. osmosis b. passive transport c. diffusion d. active transportarrow_forward
- For the following modes of transport for membranes, tell whether the flow is with or against chemical potenial. Meaning +deltaG or -deltag A. Passive Diffusion B.Faciliated Diffusion C.Active Transportarrow_forwardWhich of the following is NOT a component of the cell plasma membrane? A. cholesterol B. proteins C. microfilaments D. phospholipidsarrow_forwardWhat variable(s) influence(s) whether a nonpolar molecule can move across a membrane by passive diffusion? a. The structure of the phospholipids bilayer b. The difference in concentration of the molecule across the membrane c. The presence of transport proteins in the membrane d. All of the choices are correct.arrow_forward
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