Answer:
Penicillin binds and inhibits bacterial enzyme DD-transpeptidase.
Explanation:
Penicillin is made up of 4 rings of β-lactam and acts by binding to DD-transpeptidase of bacteria. The DD-transpeptidase facilitates the cross-linking of the peptidoglycan cell wall of bacteria. This leads to malformation of the protective cell wall of the bacteria and causes it to lyze and die.
The basement membrane is the thin, non-cellular structure of connective tissue that separates the lining of an internal surface and external surface from underlying connective tissue in metazoans.
The epithelium is a type of body tissue that covers all internal and exterior body surfaces, lines hollow organs and body cavities, and makes up most of the glandular tissue. The body comprises four types of tissues; depending on the location, connectives, muscular, nervous, and Epithelial, which perform the function of protection, secretion, and absorption.
Some examples of epithelial tissues in your body are the outer layer of the skin called the epidermis, the sweat glands, respiratory tract lining, intestines lining, etc. you can also read more on Epithelial tissue.
Learn more about Epithelial tissue here:
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Answer:
Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. ... Biodiversity is the key indicator of the health of an ecosystem. A wide variety of species will cope better with threats than a limited number of them in large populations.
Answer:
show me the picture of the chart and I can tell you
First question is - Why do we have limestone? Formed from this type of sediment are biological sedimentary rocks. Their biological organ is often revealed in the rock fossils. Some limestones can form by direct precipitation of calcium carbonate from marine or fresh water. (The second question is) - What do iron bands mean? The rocks are "banded" because the iron minerals deposited in alternating bands with silica and sometimes shale. The banding might have resulted from seasonal changes in organism activity steel mill. Most iron ore is used to make steel. Here a steel slab is being cut to length in a steel mill.
