Homework Answers
Question 3 : pH 6-8
Most of the biochemical reactions in the body occurs at physiological pH (7.35-7.45). Enzymes carryout the biochemical reactions,so it is important to maintain the pH to provide working environment for enzymes.
This pH also required to maintain physiological homeostasis in the body.
But in some compartments of the body require low pH or high pH for the enzymes to work.
Question 4: Diffusion
Diffusion is the movement of solute from it's high concentration to low concentration.Where as osmosis is the movement to solvent from low solute concentration to high solute concentration through a semi permeable membrane.
Active transport is the movement of molecules from it's low concentration to higher concentration with the help of cellular energy.
Endocytosis and exocytosis: Endocytosis is the engulfment of substances from outside of the body to inside through a cell membrane. On the other hand exocytosis is the release of substances from inside of the cell to the outside by vesicular fufusi with plasmamembrane.
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Question 3 (1 point) Most biochemical reactions in the human body occur in the pH range...
ements. 3 Select the key choices that chancerize each of the followving sta Insert the appropriate...
ements. 3 Select the key choices that chancerize each of the followving sta Insert the appropriate answers in the answer blanks. Key Choices A Active transport B. Diffusion, C. Diffusion, osmosis F.Filtration G. Phagocytosis D. Exocytosis H. Pinocytosis simple E. Facilitated diffusion 1. Receptor-mediated endocytosis 1. Engulfment processes that require ATP 2. Driven by molecular enecgy 3. Driven by hydrostatic (lui) pressure (typically blood pressure in the body) 4. Moves dowh a concentration gradient 5. Moves up (agains) a concentration...
Chapter 3 Cells and Their Functions 6. DESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS...
Chapter 3 Cells and Their Functions 6. DESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR ENERGY. EXERCISE 3-7 Write the appropriate term in each blank from the list below. exocytosis endocytosis active transport diffusion osmosis filtration pinocytosis 1. The process that utilizes a carrier to move materials across the plasma membrane against the concentration gradient using ATP 2. The movement of fluids through a membrane using a pressure gradient 3. The movement of water down its...
Chapter 3 Cells and Their Functions ESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR...
Chapter 3 Cells and Their Functions ESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR ENERGY。 EXERCISE 3-7 Write the appropriate term in each blank from the list below exocytosis endocytosis active transport diffusion osmosis filtration pinocytosis 1. The process that utilizes a carrier to move materials across the plasma membrane against the concentration gradient using ATP 2. The movement of fluids through a membrane using a pressure gradient 3. The movement of water down its concentration...
are the simplest body structures considered alve. Organ systems Organs Cells Organelles Molecules Question 212 pts...
are the simplest body structures considered alve. Organ systems Organs Cells Organelles Molecules Question 212 pts Chromatin shortens and thickens, coiling into compact rods during telophase. anaphase. interphase. prophase. metaphase. Question 222 pts All the chemical reactions in which larger molecules are broken down to smaller ones are called catabolic reactions. True False Question 232 pts In the plasma membrane, glycolipids and glycoproteins face toward the cytoplasm, while peripheral proteins always face toward the ECF True False Question 242 pts...
3. The human body has devised an excellent method to keep the body pH under control. a. What principle underlies the constant pH of human blood, and how does the blood achieve this? (1 point)...
3. The human body has devised an excellent method to keep the body pH under control. a. What principle underlies the constant pH of human blood, and how does the blood achieve this? (1 point) b. Use Le Châtelier’s principle to explain how the human body is protected against low pH after excessive exercise. (1 point) c. Use the concept of the equilibrium constant to explain why neutrality in the blood depends on the concentrations of [H+] and [OH-] rather...
1. (1 pt) Starch, glycogen, and cellulose are all types of: a. Cholesterol b. Carbohydrates c....
1. (1 pt) Starch, glycogen, and cellulose are all types of: a. Cholesterol b. Carbohydrates c. Lipids d. Nucleic Acids e. Protein 2. (1 pt) What are some differences between animal and vegetable fat? 3. (1 pt) What is an essential amino acid? What types of foods contain it? 4. (2 pt) Pick two organelles from the list below and describe their functions. Golgi Nucleus Rough Endoplasmic Reticulum Lysosome Mitochondria Smooth Endoplasmic Reticulum 5. (1 pt) What is the function...
The process(es) of a. osmosis b. diffusion c. facilitated diffusion d. active transport e. two of the above 7. do...
The process(es) of a. osmosis b. diffusion c. facilitated diffusion d. active transport e. two of the above 7. do NOT proceed to equilibriunm 8. The process of br a. Phagocytosis b. Pinocytosis c. Receptor mediated endocytosis d. None of the above ringing large particles into the cell using vesicles is called 9. Water is capable of forming hydrogen bonds because a. the hydrogen atoms carry partial positive charges. b. the oxygen atom carries a partial negative charge. c. it...
Question 11 (1 point) When an active site has a rigid shape, this is called the.. induced-fit mod...
Question 11 (1 point) When an active site has a rigid shape, this is called the.. induced-fit mode lock-and-key model active site Question 12 (1 point) The lock-and-key model is often used to explain why some enzymes catalyze a wide variety substrate reactions. True False Question 13 (1 point) Enzymes are critical to the functioning of the human body. True
Question 11 (1 point) When an active site has a rigid shape, this is called the.. induced-fit mode lock-and-key model...
5. Identify the sources of water and the avenues of water loss in the body as...
5. Identify the sources of water and the avenues of water loss in the body as well as the approximate amount of gain and loss for each source and loss. 6. Explain the physiology as to how vasopressin is stimulated to be increased or decreased 7. Differentiate between electrolytes and nonelectrolytes. 8. Describe intracellular and extracellular water concentrations and identify which body compartment is included in intracellular compartment and extracellular compartment 9. Explain each of the following as it relates...
A select the key choices that characterize each of the following statements. Insert the appropriate letter(s)...
A select the key choices that characterize each of the following statements. Insert the appropriate letter(s) or corresponding term(s) in the answer blanks. Diffusion, simple Diffusion, osmosis Endocytosis Exocytosis Filtration Solute pumping _____ 1. Require ATP (cellular energy) _____ 2. Driven by kinetic energy of the molecules _____ 3. Driven by hydrostatic (fluid) pressure _____ 4. Follow a concentration gradient _____ 5. Proceeds against a concentration gradient; require(s) a carrier _____ 6. A means of secreting cell products _____ 7....
ements. 3 Select the key choices that chancerize each of the followving sta Insert the appropriate answers in the answer blanks. Key Choices A Active transport B. Diffusion, C. Diffusion, osmosis F.Filtration G. Phagocytosis D. Exocytosis H. Pinocytosis simple E. Facilitated diffusion 1. Receptor-mediated endocytosis 1. Engulfment processes that require ATP 2. Driven by molecular enecgy 3. Driven by hydrostatic (lui) pressure (typically blood pressure in the body) 4. Moves dowh a concentration gradient 5. Moves up (agains) a concentration...
Chapter 3 Cells and Their Functions 6. DESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR ENERGY. EXERCISE 3-7 Write the appropriate term in each blank from the list below. exocytosis endocytosis active transport diffusion osmosis filtration pinocytosis 1. The process that utilizes a carrier to move materials across the plasma membrane against the concentration gradient using ATP 2. The movement of fluids through a membrane using a pressure gradient 3. The movement of water down its...
Chapter 3 Cells and Their Functions ESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR ENERGY。 EXERCISE 3-7 Write the appropriate term in each blank from the list below exocytosis endocytosis active transport diffusion osmosis filtration pinocytosis 1. The process that utilizes a carrier to move materials across the plasma membrane against the concentration gradient using ATP 2. The movement of fluids through a membrane using a pressure gradient 3. The movement of water down its concentration...
are the simplest body structures considered alve. Organ systems Organs Cells Organelles Molecules Question 212 pts Chromatin shortens and thickens, coiling into compact rods during telophase. anaphase. interphase. prophase. metaphase. Question 222 pts All the chemical reactions in which larger molecules are broken down to smaller ones are called catabolic reactions. True False Question 232 pts In the plasma membrane, glycolipids and glycoproteins face toward the cytoplasm, while peripheral proteins always face toward the ECF True False Question 242 pts...
1. (1 pt) Starch, glycogen, and cellulose are all types of: a. Cholesterol b. Carbohydrates c. Lipids d. Nucleic Acids e. Protein 2. (1 pt) What are some differences between animal and vegetable fat? 3. (1 pt) What is an essential amino acid? What types of foods contain it? 4. (2 pt) Pick two organelles from the list below and describe their functions. Golgi Nucleus Rough Endoplasmic Reticulum Lysosome Mitochondria Smooth Endoplasmic Reticulum 5. (1 pt) What is the function...
The process(es) of a. osmosis b. diffusion c. facilitated diffusion d. active transport e. two of the above 7. do NOT proceed to equilibriunm 8. The process of br a. Phagocytosis b. Pinocytosis c. Receptor mediated endocytosis d. None of the above ringing large particles into the cell using vesicles is called 9. Water is capable of forming hydrogen bonds because a. the hydrogen atoms carry partial positive charges. b. the oxygen atom carries a partial negative charge. c. it...
Question 11 (1 point) When an active site has a rigid shape, this is called the.. induced-fit mode lock-and-key model active site Question 12 (1 point) The lock-and-key model is often used to explain why some enzymes catalyze a wide variety substrate reactions. True False Question 13 (1 point) Enzymes are critical to the functioning of the human body. True
Question 11 (1 point) When an active site has a rigid shape, this is called the.. induced-fit mode lock-and-key model...
5. Identify the sources of water and the avenues of water loss in the body as well as the approximate amount of gain and loss for each source and loss. 6. Explain the physiology as to how vasopressin is stimulated to be increased or decreased 7. Differentiate between electrolytes and nonelectrolytes. 8. Describe intracellular and extracellular water concentrations and identify which body compartment is included in intracellular compartment and extracellular compartment 9. Explain each of the following as it relates...
A select the key choices that characterize each of the following statements. Insert the appropriate letter(s) or corresponding term(s) in the answer blanks. Diffusion, simple Diffusion, osmosis Endocytosis Exocytosis Filtration Solute pumping _____ 1. Require ATP (cellular energy) _____ 2. Driven by kinetic energy of the molecules _____ 3. Driven by hydrostatic (fluid) pressure _____ 4. Follow a concentration gradient _____ 5. Proceeds against a concentration gradient; require(s) a carrier _____ 6. A means of secreting cell products _____ 7....
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