Instructions from characteristics which are passed from the
parent to the offspring are called genes. Genes are made of complex molecules
of DNA. Each parent also donates chromosomes to their offspring. Each offspring
will get half of their genes from each parent and they will therefore have the aspect
of the two parents.
What do the Gram stain, acid-fast stain, and endospore stain have in common?
A. used on a wet mount of the specimen
B. use heat to force the dye into cell structures
C. outcome based on cell wall differences
D. use a negative stain technique
E. are simple stains
Answer: Option C
Explanation:
The staining can be defined as a procedure which is carried out in order to make the study easy. As many of the bacterial species appear similar and are transparent so staining is done in order to see what bacterial species incorporates what color in them to make the study more easy.
Staining also depends on the type of chemicals present in the cell wall of the organism( cell wall composition). Different organisms have different staining techniques and stains by which they show color.
This ability tells alot about their characters. Like the fast stain bacteria are very hard to stain. They are mycobacterium on which normal stain do leaves any effect because of the cell wall composition. This property states that they are resistant to many of the chemicals . Likewise gram staining and endospore staining is also dependent on the type of chemical that is found in their cell wall.
Answer: C. Hypertonic Solution
Explanation:
Hypertonic is when water leaves the cell.
Answer:
In animals, the process of respiration is aerobic respiration, exchange of gases takes place ( carbon dioxide leaving the cell, oxygen entering)
Single cellular organisms can exchange gases directly across their cell membrane through the process o diffusion.
Large animals cannot maintain gas exchange by diffusion across their outer surface. A respiratory surface is covered with thin, moist epithelial cells that allow oxygen and carbon dioxide to exchange. Those gases can only cross cell membranes when they are dissolved in water or an aqueous solution, thus respiratory surfaces must be moist.
Explanation:
I think the answer is B if I’m not mistaken
