which of the following can block the transfer of oxygen to the cells? course hero

What are the major cellular targets of physical and chemical control agents?

The basic building block or subnit of many biological molecule is called a(n)? Monomer. Monomer. ... Which of the following is characteristics of cancer cells? All of the above are characteristics of cancer cells. All of the answers. 11. The term metastasis refers to the fact that cancer cells tend to? ... Course Hero, Inc.

Which can be used to provide an oxygen-free atmosphere for bacteria?

B 57) The cell walls of bacteria, fungi, and plant cells and the extracellular matrix of animal cells are all external to the plasma membrane. Which of the following is a characteristic of all of these extracellular structures? A) They must block water and small molecules in order to regulate the exchange of matter and energy with their environment. B) They must permit information …

What is the mode of transport of glucose across plasma membranes?

Jun 30, 2017 · The enzyme that catalyzes the formation of ATP from ADP and Pi in the electron transport chain is: Answer is b. ATP synthase. 50. Which of the following statements about lipids are incorrect: Answer is d. fatty acids absorbed from mucosal epithelial cells is transported directly into the blood stream for transport to the liver.

How do you select drugs targeting the cell membrane for routine use?

A. MolL -1 S -1 B. S -1 C. Mol -1 LS -1. 9. For a rate equation: A + B = C, Rate = k [A] [B], the rate of reaction is: A. Independent of concentration of A B. Independent of concentration of B C. Dependent of concentration of A and B. 10. The formation of sulphur trioxide from sulphur and oxygen in the presence of a vanadium catalyst is an ...

What are the mechanisms of antimicrobial resistance?

Select the 5 major mechanisms of antimicrobial resistance. Enzymatic inactivation of the antibiotic. Antibiotic efflux pumps pump the antibiotic out of the cell. Altered target site, such that the antibiotic can no longer bind to the target. Microbe uses al alternative pathway to circumvent the blocked pathway.

How long does it take to sterilize silver ions?

Pure silver ions. Requires use of an autoclave. To sterilize, temperature must reach 121 degrees C for a minimum of 15 minutes. Requires 3 successive cycles of exposure to free-flowing steam (100degreesC) alternating with 24-hour incubation periods.

Why is resistance to antibiotics rising?

Resistance to these drugs is rising due to NDM enzyme production. Choose the statement that correctly explains how an antibiotic that inhibits protein synthesis can be selective. Antibiotics bind to the 70S bacterial ribosomes but not to the 80S eukaryotic ribosomes.

What temperature do you sterilize?

To sterilize, temperature must reach 121 degrees C for a minimum of 15 minutes. Requires 3 successive cycles of exposure to free-flowing steam (100degreesC) alternating with 24-hour incubation periods. Will not kill endospores. Heat applied to beverages to prevent spoilage and kill pathogens. Protocols include holding liquids at 71.6C.

Can antibiotics inhibit biofilms?

Bacteria in biofilms maybe inhibited by drugs that interfere with quorum sensing. Antibiotics' penetration of biofilms may be improved by adding DNase with the antibiotic. Antibiotic-impregnanted biomaterials that are inserted into the body prevent biofilm development on those materials.

How to remove a loop of bacteria from a culture tube?

Remove a loopful of bacteria from the culture tube, heat the mouth of the tube, and replace cap. 3. Remove cap from sterile broth, heat mouth of tube, and insert loop into sterile broth. 4. Heat mouth of sterile broth, replace cap, and heat inoculating loop before replacing into receptacle. Click again to see term 👆.

How to transfer broth to broth?

1. Heat inoculating loop, remove cap of culture tube, and heat mouth of culture tube. 2. Remove a loopful of bacteria from the culture tube, heat the mouth of the tube, and replace cap. 3.

What does "flame the mouth of the culture broth tube" mean?

Tap card to see definition 👆. To flame the mouth of the culture broth tube after removing cap and before replacing the cap. To heat the loop right before obtaining a sample from broth culture. To flame the mouth of the sterile broth tube after removing cap and before replacing cap.