Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 1.6, Problem 2CS
Core Skill: Modeling This modeling challenge asks you to propose a model for the structure of a mitochondrion in the presence of a drug that decreases the surface area of the inner membrane.
Modeling Challenge: Let’s suppose a cell is exposed to a drug that decreases the surface area of the inner mitochondrial membrane, but has no effect on the outer mitochondrial membrane. Draw a model of the structure of the mitochondrion in the presence of this drug.
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1B. please help me in detail. Draw a graph of free energy G (y-axis) vs reaction progress (x-axis) that illustrates what the kinase is doing in terms of the free energy by showing (i) the substrate (also label what the substrate is [it’s name]), (ii) the products (also give the name of the products), (iii) draw and label the uncatalyzed and catalyzed reactions, and be sure that the parts of the graph are properly labeled..
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Exercise 5
Membrane receptors are proteins that are incorporated in the cytoplasmic membrane of a cell, allowing the
detection of specific molecules such as (hormones, growth factor) and triggering a cascade of biochemical
Synthesis of protein
reactions.
The adjacent schema represents the steps of
the synthesis of these membrane receptors.
1. Label the structures from a to f.
In order to study the biosynthesis and
secretion of this protein (membrane
receptors), a solution containing radioactive
amino acid was injected in the blood of an
animal. Samples of certain cells were taken
at regular intervals of time. The intensity of
radioactivity was measured in different
cellular organelles.
2000
The table below represents the variations of the quantity of a membrane protein in different parts of the cell,
as function of time.
Time (min)
15
40
50
Structure X
26
12
2
1
Structure Z
0.
6.
10
6.
Structure Y
0.
10
24
2. Represent the obtained results in the form
3. 3.1. Analyze the obtained…
Chapter 1 Solutions
Biology
Ch. 1.1 - At which level of biological organization would...Ch. 1.3 - What is the relationship between biological...Ch. 1.3 - How does the concept of a tree of life differ from...Ch. 1.3 - Biologists sometimes say that the genome is the...Ch. 1.4 - Figure 1.10 The three domains of life. Two of...Ch. 1.4 - Why is it useful to place organisms into taxonomic...Ch. 1.5 - What is the purpose of a control group in...Ch. 1.5 - Explain how discovery-based science helped...Ch. 1.6 - Discuss the difference between discovery-based...Ch. 1.6 - What are the steps in the scientific method, also...
Ch. 1.6 - Prob. 3EQCh. 1.6 - Prob. 1CSCh. 1.6 - Core Skill: Modeling This modeling challenge asks...Ch. 1 - Which of the following is not a core concept of...Ch. 1 - Populations of organisms change over the course of...Ch. 1 - Prob. 3TYCh. 1 - Which of the following is an example of horizontal...Ch. 1 - The scientific name for humans is Homo sapiens....Ch. 1 - The complete genetic makeup of an organism a....Ch. 1 - Prob. 7TYCh. 1 - Prob. 8TYCh. 1 - Prob. 9TYCh. 1 - What is the purpose of using a control group in a...Ch. 1 - Of the five core concepts of biology described in...Ch. 1 - Explain how it is possible for evolution to result...Ch. 1 - Prob. 3CQCh. 1 - Discuss whether or not you think that theories in...Ch. 1 - Prob. 2COQ
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- cell defense worksheet (1) [Compatibility Mode] Qv Search in Docume Insert Draw Design Layout References Mailings Review View Acrobat A. Century Gothic - 12 A A- U - abe X,2 x² A A Styles Styles Pane Create and Adobe PI Step 13: Take the "Energy and Transport Challenge!" How many ATP did you use? What type(s) of protein(s) were used? Explain when each type was used. Step 14: Take the "Osmosis Challenge!" What is Osmosis? What is the name of the special proieins that let water pass through? Is this passive or active transport? Step 15: From your Scores Sheet record: Lab Score (% correct): Number Correct: Numbar Incen et Page 2 of 3 * English (United States) 505 words E Focus MAR 15 MacBook Air 888 F1 F2 F3 F4 F5 F6 F7 F @ %23 $ & 7 8. Q W T Yarrow_forwardBiochemists working with isolated mitochondria recognize five energy“states” of mitochondria, depending on the presence or absence of essential substrates for respiration—O2, ADP, oxidizable substrates, and so forth. The characteristics of each state are:state 1: mitochondria alone (in buffer containing Pi)state 2: mitochondria + substrate, but respiration low due to lack of ADPstate 3: mitochondria + substrate + limited amount of ADP, allowingrapid respirationstate 4: mitochondria + substrate, but all ADP converted to ATP, sorespiration slowsstate 5: mitochondria + substrate + ADP, but all O2 used up (anoxia),so respiration stops(a) On the graph, identify the state that might predominate in each stage of the trace indicated with a letter. (b) To determine whether isolated mitochondria exhibit respiratory control,one determines the ratio of rates of oxygen uptake in two different states.Which states?(c) Which state probably predominates in vivo in skeletal muscle fatiguedfrom a long…arrow_forwardLET'S APPLY 2: COMPUTATION - Directions: Compute the following questions. Write your solution and answer on your answer sheet. 1 GLUCOSE = 40 ATP MOLECULES (TOTAL) 1 GLUCOSE = 36 ATP MOLECULES (NET) 1 ATP MOLECULE = 7.3 kCal 1. How many ATP molecules will be produced when 100 molecules of glucose undergo cellular respiration? a. Total ATP produced: b. Total net ATP produced: 2. Compute for the amount of energy in kcal of 1a and 1b. a. Energy in kcal of the total ATP produced: b. Energy in kcal of the total net ATP produced:arrow_forward
- .Wheeler and Mathews (J. Biol. Chem. 286:16992–16996, 2011) reported the concentrations of adenine nucleotides in rat liver mitochondria as fol- lows: ATP, 5.5 mM; ADP, 5.1 mM; AMP, 1.8 mM. (a) Calculate the adenylate energy charge within the mitochondrion [ATP] + 0.5[ADP] (adenylate energy charge [ATP] + [ADP] + [AMPJ' (b) Most measurements of adenylate energy charge in whole cells or cytosol give values close to 0.9. Speculate on reasons why it might be advantageous for mitochondria to have an ADP concentration almost as high as that of ATP. (c) succinyl-CoA + ADP + P¡ = -2.9 kJ/mol If [P;] within the mitochondrion is 0.05 M and succinate and succinyl- CoA are present at equimolar concentrations, what is the maximum succinate + ATP + CoA-SH AG°' mitochondrial concentration of CoA-SH at which the reaction can be exergonic?arrow_forwardNeed help Predict the regions of low and high pH in the presence of oxygen in the mitochondria.arrow_forwardRemember for T/F questions, either answer TRUE or FALSE, but if the answer is FALSE make sure to explain WHY the answer is false. Chaperones solely live in the ER and the mitochondria.arrow_forward
- Practice question 3: Protein synthesis is carried out by what cellular component? +b. Where are each of the following proteins synthesized in the sperm Protein Role Where is this protein synthesized? Be as specific as possible and briefly explain your choice glucose transporter the plasma membrane Sugar transport across hexokinase The enzyme that carries out the first step of glycolysis (the first cytoplasmic phase of cellular respiration). Complex I is the first enzyme complex involved in oxidizing NADH as part of the electron transport chain (ETC). The ETC is the penultimate step in cellular respiration occurring across the inner mitochondrial complex I membrane.arrow_forwardPlease help me with this question. More than one answer may be correct. Clathrin _________. Options: A) binds to COP3 to send proteins to the mitochondria B) has three heavy chains and three light chains C) is involved in docking vesicles to the target membrane D) is a vesicle coating protein E) has a triskelion shapearrow_forwardThe pH values of the different compartments are shown below: matrix Intermembrane space Cytosol pH 7.8 – 8.0 pH ~ 7.0pH 7.0 – 7.4 Proton flow through ATP synthase leads to the formation of ATP, a process defined as the binding-change mechanism that was initially proposed by Boyer. Briefly explain Boyer’s binding change mechanism for the ATP synthase.arrow_forward
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