Concept explainers
To review:
Match the term lysosomes with the most closely related descriptions given below:
DNA (deoxyribonucleic acid) replication.
Flattened membrane discs, packaging.
Adjacent plasma membranes bound by bands of interlocking proteins.
Packaging of materials for import into cell.
RNA (ribonucleic acid) and protein; protein synthesis.
Control center; stores genetic information.
Cell vesicles with digestive enzymes.
Embedded in the plasma membrane.
Internal protein framework in the cytoplasm.
Introduction:
Cells may differ in the organelle composition. Organelles are the structures that perform several functions in the cell. They are important for several cellular functions. Organelles are classified into membranous and nonmembranous organelles. Some of the organelles found in the cells are lysosomes, ribosomes, Golgi apparatus, mitochondria, and others.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
EBK HUMAN ANATOMY
- c) Figure 3 shows how materials are actively transported across plasma membrane. Extracellular Process X Process Y Figure 3 i) Give two (2) similarities between process X and Y. ii) State two (2) characteristics of a cell that carry out active transport. .... ...... ..... ... ..........arrow_forwardAll of the following general functions are carried out by all cells except (a). obtaining nutrients and chemical building blocks. (b.) maintaining integrity of the plasma membrane. (c.) replacing cells through cell division. (d.) disposing of wastes.arrow_forwardIdentify the false statement about lysosomes. (a) They have the same structure and function as peroxisomes. (b) They form by budding off the Golgi apparatus. (c) Lysosomal enzymes do not occur freely in the cytosol in healthy cells. (d) They are abundant in phagocytic cells.arrow_forward
- Which of the following is not true about phagocytosis?(a) It is a form of exocytosis.(b) It is energy dependent.(c) It only occurs in eukaryotes.(d) A larger cell engulfs a smaller cell that will eventually bepresent in an internal vacuole.(e) It requires fusion of internal lysosomes to engulfed vac-uole for contents to be digestedarrow_forwardThe fundamental bilayered structure of the plasma membrane is determined almost exclusively by (a) phospholipid molecules, (b) peripheral proteins, (c) cholesterol molecules, (d) integral proteins.arrow_forwardMuscle cells differ from nerve cells mainly because they(A) express different genes.(B) contain different genes.(C) use different genetic codes.(D) have unique ribosomes.arrow_forward
- Which of the following protects the body against infectious disease and foreign invaders? [A] Leukocytes [B] Red blood cells [C] Endoplasmic reticulum (ER) [D] Golgi apparatusarrow_forwardReticulocytes are red blood cells with visible ribosomal RNA still present in the cytoplasm. This RNA is involved in the synthesis of proteins whose function is ______? (A) oxygen transport (B) carbon dioxide transport (C) blood coagulation (D) antibody formationarrow_forwardIf a solute to be transported across the plasma membrane is a much larger molecule than an ion or glucose and more like a biopolymer or a dangerous digestive enzyme or a drop of proteins, cells use a completely different type of transport mechanism called ……………………………arrow_forward
- In the motor protein diagram shown below, the part that binds to the cargo is labeled....... and the part that binds to the cytoskeleton is labeled......arrow_forwardBeginning with protein synthesis in membrane-bound ribosomes, hepatocytes secrete proteins into the circulation via which of the following mechanisms? (A) Active transport through the cell membrane (B) Diffusion through the cell membrane (C) Transport by microtubules and exocytosis (D) Transport in vesicles and exocytosis (E) Transport through pores in the cell membranearrow_forwardDiffusion is important in body fluids because this process tends to:(a) increase local concentration gradients. (b) eliminate local concentration gradients. (c) move substances against their concentration gradients. (d) create concentration gradients.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