Concept explainers
Introduction: Microscopic, branched filaments known as hyphae form a distinctive body of
Answer to Problem 1TY
Correct answer: Both fungal and animal cells are eukaryotic in nature. However, the absence of cell walls in the animal cells distinguish them from the fungal cells. Hence, the correct answer is option c.
Explanation of Solution
Reason for correct answer:
Fungal cells have a rigid layer external to the plasma membrane called cell wall. The cell wall of fungi is made up of chitin and they play role in the protection of cells. This protective layer is absent in animal cells.
Option c. is given as “have chitin-rich cell walls, whereas animal cells lack cell walls”.
The presence of chitin-rich cell walls in the fungal cells differentiates them from the animal cells. Hence, the correct answer is option c.
Reasons for incorrect answer:
Option a. is given as, “lack ribosomes, though these are present in animal cells”.
The cells of fungi are eukaryotic in nature. Therefore, like animal cells, fungi also contain ribosome, a cell organelle. Hence, option a. is incorrect.
Option b. is given as, “lack mitochondria, though these occur in animal cells”.
Cell organelles such as mitochondria are required to provide energy to the cell in the form of ATP molecules and are present in all eukaryotic cells including the animal cells and fungal cells. Hence, option b. is incorrect.
Option d. is given as, “lack cell walls, whereas animal cells possess cell walls”.
Fungal cells have a protective layer in the form of a cell wall, which is mainly composed of chitin. However, animal cells do not have cell walls. The organelles present in the animal cells are enclosed within a phospholipid bilayer known as the plasma membrane. Hence, option d. is incorrect.
Option e. is given as, “none of the above is true”.
Fungal cells possess cell walls made up of chitin and it is absent in the animal cells. This makes option c. correct. Hence, option e. is incorrect.
Hence, the options a., b., d., and e. are incorrect.
Thus, cell walls mainly composed of chitin is present in fungal cells, but it is absent in the animal cells.
Want to see more full solutions like this?
- Chlamydomonas reinhardtii is a good model organism for studying cilia and flagella because: A. It is small and easy to maintain in a lab. B. The flagella can change how they beat, symmetrically and asymmetrically. C. C. reinhardtii Flagellar proteins show high similarity and identity to human flagellar proteins. D. All of the above.arrow_forwardMatch the terms with their correct descriptions. a. Many cells adhering to each other after division forming a small or possibly large mass of cells. May have other regular geometries like sets fo 4 cells. b. Spherical cells c. Many cells adhering to each other after division, end to end forming a long string of cells d. Cell membrane surrounded by a thick peptidoglycan cell wall e. Elongated or cylindrical cells with spherical ends f. Corkscrew or twisted elongated cells g. Cell membrane surrounded by a thin peptidoglycan cell wall which is then surrounded by an outer cell membrane 1. Cocci 2. Bacilli 3. Spirilli 4. Gram + 5. Gram - 6. Filamentous 7. Clumpedarrow_forward10. Use the list of terms to the right to fill in the empty boxes in the image below. Communication between cells Small intestines Adherens Cell to cell CAM Plants Cell Junctions Animals Middle lamellae Communication between cells Cell to ECM CAM Focal adhesions A. Cadherin B. Intermediate filament C. Tight junction D. Cements cell walls E.plasmodesmata F. Actin G.Hemidesmosome H. Integrin 1. Desmosome J. Gap junction Actinarrow_forward
- Which of the following correctly compares how plant and animal cells differ?a. Plant cells have chloroplasts and mitochondria for energy, but animal cells do not have mitochondria.b. Plant cells have a cell membrane and cells walls for suppo, but animal cells do not have cell walls.c. Plant cells have ribosomes for synthesis, while animal cells have the Golgi apparatus.d. Plant cells have many small vacuoles for storage, while animal cells have one large central vacuole.arrow_forwardGive the correct biological term for each of the following statements: 1.A.Projection on the inner membrane of the mitochondrion B.Stack of membranous vesicles which are secretory in function C. Membrane around the vacuole D. Colourless plastids E. Pressure created by the protoplast on the cell wallarrow_forwardBoth Green plants and algal Charophycea have peroxisomes, which are: a. Organelles producing mitochondria. O b Organelles that start the process of cell division. Organelles involved in respiration. O d. Organelles producing cellulose. Organelles holding enzymes involved in metabolism. e.arrow_forward
- Which of the following statements is INCORRECT about plant cells? A. They have nucleus with circular chromosomes. B. They have cytoplasm that contains all of the organelles. C. They have rigid cell walls. D. They have a large, fluid-filled space inside that helps them maintain their shapearrow_forwardThe difference between a gap junction and plasmodesmata is… Select one: a. Gap junctions are formed by microfilaments while plasmodesmata are formed by membrane b. Gap junctions are anchoring junctions while plasmodesmata are protein junctions. c. Gap junctions are formed by proteins making pores between two animal cells while plasmodesmata are formed due to incomplete cell division of membranes from adjoining plant cells.arrow_forwardA meristematic cells a. Are dead b. Have a high cytosol/nucleus ration c. Have a few proplastids d. Have lignified cell wallsarrow_forward
- According to the theory of endosymbiosis, organelles, like mitochondria and chloroplasts, were once free-living cells that were absorbed into another cell. The relationship benefited both cells to stay together. What evidence do scientists observe today that supports the theory of endosymbiosis? Select all that apply. a There are ribosomes found inside mitochondria and chloroplasts just like there are inside cells. b Looking inside mitochondria and chloroplasts, one will find that they each contain their own DNA. c Mitochondria and chloroplasts are found inside all cell types. d Mitochondria and chloroplasts each have a membrane around them just like a cell would.arrow_forwardWhich of the following statements supports the concept of the endosymbiotic theory? A. Proteins may be trafficked within the endomembrane system. B. Ribosomes are present in the cytoplasm of prokaryotic cells and eukaryotic cells. C. Chloroplasts have many features in common with bacteria. D. Mitochondria can fuse together to form larger organelles within eukaryotic cells.arrow_forwardWhich of the following best distinguishes a prokaryotic cell from aeukaryotic cell?a. Prokaryotic cells have a cell wall, but eukaryotic cells never do.b. Prokaryotic cells are much larger than eukaryotic cells.c. Prokaryotic cells have flagella, but eukaryotic cells do not.d. Prokaryotic cells do not have a membrane-bound nucleus,but eukaryotic cells do have such a nucleus.e. Prokaryotic cells have ribosomes, but eukaryotic cells do nothave ribosomes.arrow_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