The measles virus enters human cells by _____.
a- endocytosis
b-membrane fusion
c- exocytosis
d- ATP desalinization
e- direct penetration
measles virus enters human cells by endocytosis------------100% sure-correct answer
The measles virus enters human cells by _____. a- endocytosis b-membrane fusion c- exocytosis d- ATP...
1-1. The SARS-CoV-2 is an enveloped virus, meaning it is surrounded by a bilayer of membrane that it acquires as it exits the host cell. a. What is the host membrane bilayer made of? b. What is the other main macromolecule that comprises the “fluid mosaic” model of a cell membrane? 1-2. To gain entry, spikes of the SARS-CoV-2 bind to angiotensin-converting enzyme 2 (ACE2) found in epithelial cells especially of the respiratory and oral passageways. As such, these cells...
A. 20. Muscles that have involuntary action are B. mitosis C. meiosis D. exocytosis E. endocytosis
This is about the measles
virus. (a paramyxovirus)
FILL IN THE BLANK: 1. During attachment, viral [name viral ligand] binds receptor molecules on the cell] of the host cell [name specific structure of host 2. During [name stage of replication] and uncoating, the virion enters the cell by membrane genome into the cytoplasm of the cell [name process], releasing the 3. During biosynthesis, the [positive or negative] strand RNA genome is replicated using the viral [name specific enzyme] that [was...
QUESTION 39 Whereas animal cells drive indirect transport across the plasma membrane with a Na+ gradient, other organisms like plants and bacteria use O A a glucose gradient B. a Ca2+ gradient C. a proton gradient D. osmosis E. endocytosis and exocytosis. Flight energy
Which of the following viruses is the etiologic cause of Measles? A) Varicella B) Morbilli virus C) Rubella D) Rubeola E) Lyssa virus
The observation that plasma membrane components mix after fusion of two different cells provides evidence for Question 118 options: A. bilayer structure of biological membranes. B. lateral mobility of membrane proteins. C. relative asymmetry of membrane lipids. D. rotational movement of membrane proteins. E. transbilayer movement of membrane lipids.
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4 and CCR5. A small percentage of individuals have a genetic mutation which causes their cells to lack CCR5. These individuals will never develop AIDS nor are they able to pass HIV on to others. Which part of viral replication is being blocked by the lack of a receptor? Select one: o a. Newly assembled virions cannot be released from the host cell. O b....
1) Glucose enters human enterocytes (intestinal epithelial cells) against its concentration gradient. A Na+ ion enters the cell with each glucose molecule, and while the glucose transporter does not hydrolyze ATP, it depends on a pre-existing gradient of Na+ ions that is created by the Na+/K+ ATPase. This is an example of ____________. A. primary active uniport B. secondary active antiport C. primary active symport D. secondary active symport 2) Which statement is FALSE? A. Acetyl CoA is oxidized to...
solution will burst due to an intake of water. Red blood cells in a A. Hypotonic Solution B. Isotonic Solution C. Hypertonic Solution Which biological macromolecule is not found in the fluid mosaic model of the cell membrane? A. Nucleic Acids B. Proteins C. Carbohydrates D. Lipids Secreted proteins exit the cell using the process of A. Exocytosis B. Pinocytosis C. Receptor Mediated Endocytosis D. Phagocytosis E. Autophagy Cellulose is found in the A.Cell Membrane B.Chloroplast C.Lysosome D. Cell wall...
9. Which of these organelles contains an inner membrane folded inward to form cristae? a. nucleus b. chloroplast c. rough ER d. mitochondrion e. smooth ER 10. Which reaction requires an enzyme? a. ATP -ADP Pi ADP +Pi >ATP C. Sucrose->glucose+fructose d. glyceraldehyde 3-phosphate (G3P)> 1,3-diphosphoglyceric acid e. all of these 11. What would happen to human red blood cells placed in a solution of sucrose that is hypertonic to their cytoplasm? a. b. C. d. e. They would take...