They have a thick cell wall and can be recognized because they remain purple after being treated with a particular stain(= a chemical that changes the colour of something): (细菌)革兰氏阳性的Staphylococcus is part of the Gram-positive group of bacteria.葡萄球菌属于革兰氏阳性菌群。Bacteria are...
The meaning of GRAM-POSITIVE is holding the purple dye when stained by Gram's stain —used chiefly of bacteria.
Gram-positive vs. Gram-negative Named for the scientist who created the test, Gram-positive and Gram-negative are two indications of the cellular structure of bacteria. Gram-positive means retaining purple dye when stained with Gram's stain. Named for Danish scientist Gram, the stain is a ...
gram-positive词源英文解释 The first known use of gram-positive was in 1907 gram-positive医学词典英英释义 gram-positiveadjective holding the purple dye when stained by Gram's stain—used chiefly of bacteria gram-positive 例句 1.Penicillin is available by prescription and can treat gram-positive bact...
Gram positive vs Gram negative refers to the cell wall structure of different bacteria. Gram staining refers to a staining procedure that was developed by Hans Christian Gram. This staining procedure renders Gram positive bacteria purple and Gram negative bacteria red or pink. Gram staining is impor...
Why can old cultures of gram-positive cells stain pink rather than purple? Gram-positive Cells: Gram-positive cells contain a membrane barrier where the cell membrane is studded with proteins called peptidoglycan. Gram-positive cells are essential in many different ways. They help ...
Which of the following statements about Gram positive/negative bacteria is true? a) Gram-negative bacteria do not have peptidoglycan in their cell walls and stain blue to purple. b) Gram-positive bacteria have a lot of peptidoglycan in their cell wall Give 5 examples of how to identi...
Gram positive cells stain purple when subjected to a Gram stain procedure. Gram negative bacteria have cell walls with a thin layer of peptidoglycan. The cell wall also includes an outer membrane with lipopolysaccharide (LPS) molecules attached. ...
百度试题 结果1 题目What is the color of gram-positive bacteria after gram-staining() A pink B brown C red D yellow E blue purple 相关知识点: 试题来源: 解析 E 反馈 收藏
This difference in reaction to the Gram stain arises because of differences in the cell wall structure which promote the retention of the purple dye, crystal violet, in the Gram-positive bacteria after decoloring with ethanol, while in the Gram-negative bacteria, the stain is not retained. The...