
A.
To examine: Whether the statement “the hereditary information of a cell is passed on by its proteins” is correct or incorrect.
Introduction: The genetic material of the cell passes on the hereditary information from the parent to offspring.
B.
To examine: Whether the statement “Bacterial DNA is found in the cytosol” is correct or incorrect.
Introduction: The cytosol is an aqueous medium in which the membrane-bound organelles float in eukaryotic organisms having the chemical composition of water, dissolved ions, polar molecules and proteins. In prokaryotes, they are the site of action of
C.
To examine: Whether the statement “plants are composed of prokaryotic cells” is correct or not.
Introduction: Cells are of two types: prokaryotic and eukaryotic cells. Prokaryotic cells are primitive; lack membrane bound cell organelles and a nucleus. The genetic material is present in the cytosol.
D.
To explain: Whether the statement “With the exception of egg and sperm cells, all of the nucleated cells within a single multicellular organism have the same number of chromosomes” is correct or incorrect.
Introduction: Both prokaryotes and eukaryotes have chromosomes which make up the genetic material of an organism. Chromosomes are thin, thread-like structures visible at the time of cell division. They are DNA in compacted form, held together by basic proteins called Histones. The chromosome number varies between the somatic and sex cells. The somatic cells have 2n number and sex cells have n number of chromosomes. The chromosome number remains the same for a single species, and they vary greatly between species.
E.
To explain: Whether the statement “The cytosol includes membrane-enclosed organelles, such as lysosomes” is correct or incorrect.
Introduction: Lysosomes are minute, single-membrane-bound organelles that perform the function of intracellular digestion and degradation of molecules for recycling within the cell or for cellular level excretion. They are the site of degradation of large and small molecules.
F.
To explain: Whether the statement “The nucleus and mitochondria are surrounded by a double membrane” is correct or not.
Introduction: Nucleus and mitochondria are cell organelles found in the cytosol of eukaryotic cells.
G.
To explain: Whether the statement “Protozoans are complex organisms with a set of specialized cells that form tissues, such as flagella, mouthparts, stinging darts, and leglike appendages” is correct or not.
Introduction: Protozoans are eukaryotic organisms that are unicellular.
H.
To explain: Whether the statement “Lysosomes and peroxisomes are the sites of degradation of unwanted materials is correct or not.
Introduction: Peroxisomes are minute, single-membrane-bound vesicles that give a safe reaction site for reactive oxygen species or oxy radicals such as H2O2 and other toxic radicals.

Want to see the full answer?
Check out a sample textbook solution
Chapter 1 Solutions
Essential Cell Biology 5e
- What did the Cre-lox system used in the Kikuchi et al. 2010 heart regeneration experiment allow researchers to investigate? What was the purpose of the cmlc2 promoter? What is CreER and why was it used in this experiment? If constitutively active Cre was driven by the cmlc2 promoter, rather than an inducible CreER system, what color would you expect new cardiomyocytes in the regenerated area to be no matter what? Why?arrow_forwardWhat kind of organ size regulation is occurring when you graft multiple organs into a mouse and the graft weight stays the same?arrow_forwardWhat is the concept "calories consumed must equal calories burned" in regrads to nutrition?arrow_forward
- You intend to insert patched dominant negative DNA into the left half of the neural tube of a chick. 1) Which side of the neural tube would you put the positive electrode to ensure that the DNA ends up on the left side? 2) What would be the internal (within the embryo) control for this experiment? 3) How can you be sure that the electroporation method itself is not impacting the embryo? 4) What would you do to ensure that the electroporation is working? How can you tell?arrow_forwardDescribe a method to document the diffusion path and gradient of Sonic Hedgehog through the chicken embryo. If modifying the protein, what is one thing you have to consider in regards to maintaining the protein’s function?arrow_forwardThe following table is from Kumar et. al. Highly Selective Dopamine D3 Receptor (DR) Antagonists and Partial Agonists Based on Eticlopride and the D3R Crystal Structure: New Leads for Opioid Dependence Treatment. J. Med Chem 2016.arrow_forward
- The following figure is from Caterina et al. The capsaicin receptor: a heat activated ion channel in the pain pathway. Nature, 1997. Black boxes indicate capsaicin, white circles indicate resinferatoxin. You are a chef in a fancy new science-themed restaurant. You have a recipe that calls for 1 teaspoon of resinferatoxin, but you feel uncomfortable serving foods with "toxins" in them. How much capsaicin could you substitute instead?arrow_forwardWhat protein is necessary for packaging acetylcholine into synaptic vesicles?arrow_forward1. Match each vocabulary term to its best descriptor A. affinity B. efficacy C. inert D. mimic E. how drugs move through body F. how drugs bind Kd Bmax Agonist Antagonist Pharmacokinetics Pharmacodynamicsarrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & 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 & CompanyLaboratory 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





