Gram-positive and gram-negative bacteria differ in that
A. Gram-positive bacteria have more peptidoglycan in their cell walls.
B. Gram-positive bacteria have fimbriae but gram-negative bacteria do not.
C. Gram-positive bacteria are spiral-shaped, and gram-negative bacteria are either rod-shaped or spherical.
D. Only gram-negative bacteria can form endospores.
E. There is no difference between gram negative and gram positive bacteria
F. Gram positive are positively charged and gram negative are negatively charges
An unknown bacterial species was found in the blood of a septic patient and it contains LPS in its cell membrane. This observation indicates that
A. the infection should be relatively easy to control with common antibiotics, because the pathogen is a gram-positive species.
B. the infection should be relatively easy to control with common antibiotics, because the pathogen is a gram-negative species.
C. the infection may be quite threatening and difficult to control, because the pathogen is a gram-positive species
D. the infection may be quite life threatening and difficult to control, because the pathogen is a gram-negative species.
What is the name of a major transcription factor that resides in the cytosol but translocates to the nucleus during innate inflammation signaling?
A. APO-E
B. IKKBeta
C. NF Kappa B
D. IRS-1
E. KRS-1
F. Insulin
Why do mosses and ferns have to exist in relatively moist places?
A. Absence of cuticle
B. Presence of flagellated sperm
C. Presence of free-living, independent zygotes and early embryos
D. Absence of lignified vascular tissues
A patient comes into your office complaining of a shortness of breath, fatigue, and severe edema. You refer the patient out for an echocardiography and the results come back that the patient has an ejection fraction is 60% and an E/A ratio of 0.5. What is your diagnosis of this patient (do they have systolic or diastolic dysfunction)?
A. Systolic dysfunction
B. Diastolic dysfunction
C. Neither, the patient is fine
D. Both, the patient is suffering from both systolic and diastolic dysfunction
1) Gram positive bacteria have more complex peptidoglycan in their cell is correct option
2) The infection maybe quite life threatening and difficult to control, because the pathogen is a gram negative species is correct option
3) NF kappa B is correct answer
4) Mosses and fern required water to swim flagellated sperm towards option B is correct
5) Diastolic dysfunctional option is correct
Gram-positive and gram-negative bacteria differ in that A. Gram-positive bacteria have more peptidoglycan in their cell...
1. Regarding the structure of bacteria cells: a) They always have a cell wall b) They are structurally the same as human cells c) They contain a distinct nucleus d) All of the above are correct 2. Cold sores and fever blisters are an example of a) A recurring bacterial infection b) A latent viral infection c) A nosocomial infection d) A fungal infection 3. Fungal infections: a) Are always a minor illness b) May present with pneumonia - like...
Which of the following has peptidoglycan as a major constituent of cell wall? A. Gram-negative bacteria B. Gram-positive bacteria C. Fungi D. None of these
choose: which defense mechanism is more effective against gram positive bacteria than gram negative bacteria? a- inflammation b- B-galactosidase c- peptidyl transferase d- lysozyme
What functions to anchor peptidoglycan to the cytoplasmic membrane in Gram positive bacteria, but not Gram negative ones? a) Teichoic acid b) Lipoteichoic acid c) flagellin d) phospholipid
43.Lipopolysaccharides (LPS) are found in: a. Gram-positive bacteria b. Gram-negative bacteria c. all Bacteria d. Archaea e. Eukaryotes ------------------------- 44. There are similarities and differences between Gram-negative and Gram-positive bacteria. Which of the following is not true? a. The cell wall of Gram-negative cells is composed of only one or two layers of peptidoglycan whereas the cell walls of Grampositive bacteria have many peptidoglycan layers b. Only Gram-positive bacterial cells have a periplasm 2/6/18 8 c. The cell membranes of...
QUESTIONS 1) Are acid fast cells gram positive or gram negative? Explain why it might be difficult to determine the Gram reaction of acid fast cells. 2) What is the significance of the mycolic acid layer in the following contexts? A) To bacteria for survival and infection B) During the acid fast staining procedure QUESTIONS 1) What is the difference between a pure culture and a pure colony? Is a streaking for isolation plate a pure culture when your original...
6. Tetracyclines are effective against several gram-positive and gram-negative microorganisms. Additionally, they can cause which of the three following side effects? a. Eye sclera discoloration, colitis, and a photosensitivity rash b. Tooth discoloration, colitis, and insomnia Colitis, a photosensitivity rash, and hypothyroidism c. d. Tooth discoloration, colitis, and a photosensitivity rash Tobramycin sulfate is an example of a a. Penicillin a.. 7. b. Cephalosporin c. Carbapenem d. Aminoglycoside 8. True or False: Quinolones are a type of antibiotic that inhibit...
QUESTIONS Predict the effect on Gram-positive and Gram-negative cells of the following mistakes made when performing a Grum stain. Consider cac mistake independently a. Failure to add the iodine. b. Failure to apply the decoloriser. 3 c. Failure to apply the safranin. d. Reversal of crystal violet and safranin stains. Both crystal violet and safranin are basic stains and may be used to do simple stairs on Gram-positive and Gram-negative cells. This being the case, explain how they end up...
ERTIFICATION PREPARATION Circle the correct answer. Beneficial microorganisms that are responsible for breaking down organic matter are called If an organism is able to live and thrive in the presence of oxygen, it is a. an anaerobe. b. a facultative anaerobe. no C. an aerobe. d. none of the above. a. virus. b. Saprophyte. c. acid-fast bacilli. d. mycoplasma. 7. What color is a Gram-positive organism? a. Baby blue b. Pink c. Red d. Purple Tiny Gram-negative bacteria that are...
20.) The term spheroplast applies to a gram-negative bacterial cell which .......? A.) is likely to lyse due to the osmosis shock b.) is just about to ready to produce a spore c.) is fighting off an infection by becteriophages d.) has lost its peptidoglycan layer of the cell wall e.) is lacking a cell wall 17) Peptidoglycan is a polymer consisting of the following chemical constituents (1 pts) ON-acetyglucosamine (AGA), N-acetylmuramic acid, and a peptide chain ON-AGA, N-AMA, teichoic...