Concept explainers
Videos
A.
To explain: The given statement “Many, but not all, electron transfer reactions involve metal ions”.
Concept introduction:
Mitochondrion is known as the power house of the cell. The ATP is synthesized by the electron transport system present in the mitochondria. Plants contain both chlorophyll and mitochondria and through the process of photosynthesis taking place in the chloroplast, they prepare the food for them.
A.
Answer to Problem 12Q
Explanation of Solution
It is not necessary that the compounds involved in electron transfer must contain metal ions. For example, ubiquinone and NAD+ are the compounds that do not contain metal ions; still they are involved in the electron transfer mechanisms.
Hence, the given statement is correct.
B.
To explain: The given statement “The electron-transport chain generates an electrical potential across the membrane because it moves electrons from the intermembrane space into the matrix”.
Concept introduction:
Mitochondrion is known as the power house of the cell. The ATP is synthesized by the electron transport system present in the mitochondria. Plants contain both chlorophyll and mitochondria and through the process of photosynthesis taking place in the chloroplast, they prepare the food for them.
B.
Answer to Problem 12Q
Explanation of Solution
In the inner mitochondrial membrane, the electrons are bound with the electron carriers, and they are not responsible for the generation of electric potential. The electric potential is generated by the protons that move from the matrix to the intermembrane space.
Hence, the given statement is incorrect.
C.
To explain: The given statement “The
Concept introduction:
Mitochondrion is known as the power house of the cell. The ATP is synthesized by the electron transport system present in the mitochondria. Plants contain both chlorophyll and mitochondria and through the process of photosynthesis taking place in the chloroplast, they prepare the food for them.
C.
Answer to Problem 12Q
Explanation of Solution
A pH difference and electric potential are the two important components present in the electron transport chain. These components will act as a driving force for the protons to flow back into the matrix and will provide more energy to the system.
Hence, the given statement is correct.
D.
To explain: The given statement “Ubiquinone and cytochrome c are both diffusible electron carriers”.
Concept introduction:
Mitochondrion is known as the power house of the cell. The ATP is synthesized by the electron transport system present in the mitochondria. Plants contain both chlorophyll and mitochondria and through the process of photosynthesis taking place in the chloroplast, they prepare the food for them.
D.
Answer to Problem 12Q
Explanation of Solution
Ubiquinone and cytochrome c are the electron carriers present in the electron transport system. Both of these electron carriers move very rapidly inside the membrane and hence they are diffusible electron carriers.
Hence, the given statement is correct.
E.
To explain: The given statement “Plants have chloroplasts and therefore can live without mitochondria”.
Concept introduction:
Mitochondrion is known as the power house of the cell. The ATP is synthesized by the electron transport system present in the mitochondria. Plants contain both chlorophyll and mitochondria and through the process of photosynthesis taking place in the chloroplast, they prepare the food for them.
E.
Answer to Problem 12Q
Explanation of Solution
Chloroplasts are not present in all parts of the plant. Mitochondrion is required in all the plant cells to produce ATP where chloroplast is not present. The other important function of mitochondria is that it is the site of synthesis of cytosolic ATP in all plant cells.
Hence, the given statement is incorrect.
F.
To explain: The given statement “Both chlorophyll and heme contain an extensive system of double bonds that allows them to absorb visible light”.
Concept introduction:
Mitochondrion is known as the power house of the cell. The ATP is synthesized by the electron transport system present in the mitochondria. Plants contain both chlorophyll and mitochondria and through the process of photosynthesis taking place in the chloroplast, they prepare the food for them.
F.
Answer to Problem 12Q
Explanation of Solution
The main function of the chlorophyll is to perform the photosynthesis reaction, which requires absorption of light. Heme is a molecule present in the blood due to which the blood is red in color. It has the ability to absorb the light in blue–green range.
Hence, the given statement is correct.
G.
To explain: The given statement “The role of chlorophyll in photosynthesis is equivalent to that of heme in mitochondrial electron transport.
Concept introduction:
Mitochondrion is known as the power house of the cell. The ATP is synthesized by the electron transport system present in the mitochondria. Plants contain both chlorophyll and mitochondria and through the process of photosynthesis taking place in the chloroplast, they prepare the food for them.
G.
Answer to Problem 12Q
Explanation of Solution
Chlorophyll plays a very important role in the photosynthesis process. It has the ability to absorb the light energy and can transfer this light energy to the electron, which will move through the electron transport system. These electrons are carried away across the membrane by the electron carriers, and iron in heme is such an electron carrier.
Hence, the given statement is incorrect.
H.
To explain: The given statement “Most of the dry weight of a tree comes from the minerals that are taken up by the roots.
Concept introduction:
Mitochondrion is known as the power house of the cell. The ATP is synthesized by the electron transport system present in the mitochondria. Plants contain both chlorophyll and mitochondria and through the process of photosynthesis taking place in the chloroplast, they prepare the food for them.
H.
Answer to Problem 12Q
Explanation of Solution
CO2 fixation takes place during photosynthesis. The carbon derived from this CO2 is the reason for the most of the dry weight of the tree, and it is not by the minerals taken up by the roots.
Hence, the given statement is incorrect.
Want to see more full solutions like this?
Chapter 14 Solutions
Essential Cell Biology (fifth Edition)
- There is a patient with breast cancer, after staining the breast tissue with H&E, state the molecular subtype of the tumour extracted. Results of H&E staining are down belowarrow_forwardBiopharmaceutics and Pharmacokinetics:Two-Compartment Model Instant Absorption Questions Calculate these : a) B1, b) B2, c) hybrid rate constant (1) d) hybrid rate constant (2) e) t1/2,dist f) t1/2,elim g) k10 h) k12 i) k21 j) initial concentration (C0) k) central compartment volume (V1) l) steady-state volume (Vss) m) clearance (CL) AUC (0→10 min) using trapezoidal rule n) AUC (20→30 min) using trapezoidal rule o) AUCtail (AUC360→∞) p) total AUC (using short cut method) q) volume from AUC (VAUC)arrow_forwardUse the Henderson-Hasselbalch equation for a propanoic acid solution (CH₂CH₂CO₂H, pK₁ = 4.874) to calculate the quotient [A-]/[HA] at three different pH values. pH = 4.479 [A-] [HA] [A-] pH = 4.874 [HA] = pH = 5.220 [A-] = [HA]arrow_forward
- In order to establish the expiration date of perishable food, growth curve data must be collected. Once the microbial load is so high that it poses a hazard to human health, the food item is no longer considered safe (expired). Generally a load of x50,000 bacteria/gram is considered unsafe. Your task is to determine the microbial growth curves for MicroYo, a new brand of yogurt. The growth is determined by sampling the yogurt and growing the bacterial isolates in broth culture which is then serially diluted by a total of x10,000 and inoculated onto standard petri plates of nutrient agar. The following colony counts are measured: Time (days) MicroYo colony count# 1 1 4 1 12 2 16 20 4 7 What day should you recommend expiring the yogurt (the last possible date before the microbial load is unsafe). 12 4 20 16arrow_forward9. Chicken combs in chickens is an example where you see interactions between genes. See potential genotypes and phenotypes below. Which genotype, when mated to a rose comb chicken, will produce progeny that are 50% walnut comb and 50% pea comb? walnut (RRPP) walnut (RrPP) pea (rrPP) walnut (RRPP) walnut (RrPp) pea (rrPp) rose rose single (RRPP) (Rrpp) (rrpp)arrow_forwardDescribe a compound light microscope and its importance in microbiology (2) examples of at least two microbes viewed under a compound light microscope and their general characteristics (note: the microbes you choose do not need to be the ones outlined in the above tutorial video) and (3) at least one source you used for the information included in your infographic.arrow_forward
- Price of visit Number of visits $700 0 $600 [1 $500 2 $400 3 $300 4 00000 The Table blow gives the demand curve for doctor visits for Elena. If the price of a doctor's visit is $600, and Elena does not have health insurance, she will visit the doctor times. If Elena obtains 50% coinsurance (the company pays 50% of the medical bill, Elena pays 50%), then Elena will visit the doctor times. 1; 2 0; 3 0; 2 1;4 2; 1arrow_forwardP 200 150- 100 50 w/instrance/ w/insurance 2 100 Demand Assume that the white curve (labeled "Demand") represents an individual's true demand for this particular health care service. The coinsurance associated with insurance option 1 (in blue) is likely _. 0000 100% 25% 50% 0%arrow_forwardUse the figure below. Bob and Nancy have the same income and total utility.. willingness to pay for an insurance premium will be lower than because they are. risk- averse. Total utility Current utility Bob's utility Nancy's utility 0000 Bob; Nancy; less Nancy; Bob; less Nancy; Bob; more Bob; Nancy; more Current Income incomearrow_forward
- Consider the figure below. Suppose the true price of a health care service is P1. Suppose further that the individual has obtained insurance that has a fixed copayment for this particular service. The copayment is represented by price P2. represents the quantity of the service the individual would consume without insurance. quantity of the service the individual would consume with the insurance. Health Care Service represents the P. P₂ a Q1;Q2 Q2; Q3 Q1; Q3 Q3; Q1 Q2; Q1 फ f Q ८ g d h Q3\D 7Q 00000arrow_forwardThe table shows the utility Jordan receives at various income levels, but they do not know what their income will be next year. There is a 15% chance their income will be $25,000, a 20% chance their income will be $35,000, and a 65% chance their income will be $45,000. We know that Jordan is Income $25,000 Utility 2,800 30,000 3,200 35,000 3,500 40,000 3,700 45,000 3,800 ☐ none of the above 0 000 risk taker (lover) because their marginal utility of income is increasing risk neutral because their marginal utility of income is constant risk averse because their marginal utility of income is decreasing risk neutral because their marginal utility of income is decreasingarrow_forwardOOOO a d+e d a+b+c Consider the figure below. Suppose the true price of a health care service is P1. Suppose further that the individual has obtained insurance that has a fixed copayment for this particular service. The copayment is represented by price P2. The social loss from moral hazard if the individual has copayment P2 is represented graphically by the area(s): Health Care Service P. a No 4 ८ e g Q2 Q3 Darrow_forward
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education