The area in which I live in is the Tikvesh valley, Macedonia. The rock types that dominate in my area are of two types, shale and andesite. The dispersal of these two totally different types of rocks is pretty much the same, so there isn't one that would dominate over the other. The reason why these two types of rocks are dominant in the area is because the area was underwater until 20 million years ago, so once the big lakes dried out, there were large layers of sedimentary rocks behind it, thus the shale. On the other hand, until 2.5 million years ago there was a volcano in the southern part of the area. The volcano had andesitic magma, so around the area where it was located there's predominantly layers of andesite. The streak in the rock samples is very simple, as they have very monotonous structure, their layers are not distinguishable when cut through. The shale is a soft rock, and it can be broken very easily, even by hand. The easiest way to break it though is to hit it with sharp object horizontally. The andesite is very hard rock, as it is an igneous rock. It has a much more solid structure, so breaking it is very hard. The presence of calcium carbonate in the area is lacking.
Almost all plant cells have single large central vacuole. These large central vacuoles of the plant cells are filled with water and can take over 80% of its cell volume. This is surrounded by a single membrane called tonoplast.
Letter A is the answer.
Answer:
In the given example, malonic acid is the competitive inhibitor of succinate.
Explanation:
- When a substance diminishes the velocity of an enzyme catalyzed reaction then it is called inhibitor.
- These inhibitors can bind to enzyme in a reversible or irreversible fashion.
- Reversible inhibitor binds to enzyme by non-covalent bonds.
- There are two types of enzyme inhibition: Competitive and non-competitive.
- Competitive inhibition: We use the term competitive if the inhibitor binds to enzyme reversibly at the same site as substrate would bind.
- Here in this example, both succinate and malonic acid have same binding site on enzyme i.e the active site. Since both can bind to the same site, inhibitor competes with the substrate for that site.
- By increasing the concentration of substrate, we can reverse the effect of competitive inhibitor.
- At a sufficiently high concentration of substrate, V-max can be achieved for the reaction. In the Michaelis-Mentens curve we can observe increase in the Km value in the presence of competitive inhibitor.
Answer is basalt.
Basalt is fine grained igneous rock which contains 45 to 53% silica and 65% rich is feldspar in the form of plagioclase( silicate rock forming mineral). Feldspar is an abundant rock forming mineral. In basaltic rocks the feldspar is silica.
The basalt rocks contains pyroxene group in its minerals which gives it black color. So rocks containing many dark silicate minerals and plagioclase feldspar have basaltic composition.
Women are more likely than men to get UTIs because the urethra is shorter in a woman than in a man. So I believe it is structure 2.