The high cholesterol also refers to as Hyperlipidemia. The increase in level of fatty substances, cholesterol and triglycerides in blood is called hyperlipidemia. There are two types of lipoproteins that are HDL (high density lipoprotein) and LDL (low density lipoprotein). The excess HDL reaches liver and thus excreted. So, HDL is good for body but LDL is bad fat. The increased LDL in body causes hyperlipidemia. The increase LDL can lead to heart attack.
Thus, the general term used to describe elevated levels of cholesterol and other fatty substances in the blood is Hyperlipidemia.
Which one of the following sexually transmitted diseases is characterized by a primary phase that affects the genitals, and secondary and tertiary phases that spread throughout the body? A. syphilis
D. All of these
The correct answer is - option A. syphilis.
Syphilis is a bacterial infection spread by sexual intimacy or contact. It generally starts sores without any pain in them. Syphilis develops in various phases or stages and every stage has specific symptoms.
The primary stage involves a painless sore that attacks the genitals, mouth or rectum of the host. The second stage includes rashes throughout the body the tertiary and final stage is characterized by the damage in brain, nerves, and eyes.
Thus, the correct answer is - option A. syphilis.
Syphilis. (Ans. A)
Syphilis: It is known as a bacterial infection usually sexually transmitted disease, and starts as a painless sore on the mouth, and genitals. It is an easily pass, and super contagious infection from one person to other during sex.
Secondary stage of syphilis symptoms includes soles of your feet, rashes on the palm, and other parts of the body. In tertiary stage or late stage, there is a time when syphilis infection is becomes latent, and there are no symptoms or signs for years but still it needs treatment to get rid of it.
Why are pollutants more harmful to tertiary consumers as opposed to producers?
Name 2 categories of pests
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You are growing yeast cells in a culture. After a few days of consistent growth, you notice that cell growth has slowed considerably. After some testing you note gas bubbles in the culture fluid along with the presence of ethanol. What is the most likely cause of the decrease in cell growth? A) There is too much oxygen in the culture medium. B) There is too much glucose in the culture medium. C) There is not enough oxygen in the culture medium. D) There is not enough glucose in the culture medium.
The correct answer is C) There is not enough oxygen in the culture medium. This is because of alcoholic fermentation, and anaerobic process where the yeast transform sugar (glucose) in ethylic alcohol (ethanol) and carbon dioxide. Glucose is decomposed into pyruvic acid which then after turns into CO2 and ethanol. The bubbles described, are produced by the carbon dioxide.
The yeast, as well as some bacteria, use the glucose molecule through "glycolysis" to obtain a 3-carbon molecule called pyruvates. Glycolysis consists of 10 coupled reactions, in the end, from one glucose (6 carbons) the yeast will obtain two pyruvates (3 carbons each).
Pyruvate can follow three main routes to obtain ATP, end up as lactate, as carbon dioxide (CO2) and water or as ethanol (alcohol) and CO2. Regarding yeast, it can only be used to obtain Ethanol plus CO2 or to obtain CO2 plus water.
The path that follows from here depends on the reaction medium. The cell gets much more energy (38 molecules of ATP) by converting pyruvate into water + CO2 than by turning it into ethanol + CO2 (2 molecules of ATP). Then, whenever possible, the yeast will follow the CO2 + water path. To support this route the cell needs oxygen. In this case, the cell obtains its energy by breathing when there is no oxygen available, the yeast has a way that allows it to gain much less energy but allows it to survive, the alcoholic fermentation, previously mentioned.
Therefore, A, B, and D answers are wrong for the reasons mentioned above.
A protein called GEF-H1 is known to control immune responses to certain viruses such as influenza A. GEF-H1 is best classified as which kind of protein?
It is an antibody.
The protein GEF-H1 is an antibody. The antibodies refer to the molecules of proteins, which are generated by the B-cells of the immune system in reaction towards the antigens, that is, the foreign components like pathogenic viruses and bacteria. The antibodies target particular kinds of foreign bodies, determines them by identifying the particular section of the foreign bodies and neutralizing them with the assistance of different mechanisms.
You decide to repeat the Meselson-Stahl experiment, except this time you plan to grow the cells on light 14N medium for many generations and then transfer them to heavy 15N medium and allow them to grow for 2 additional generations (2 rounds of DNA replication). If the conservative model of DNA replication is correct, what is the expected distribution of DNA in the density gradient after one round of replication?
One band of light density and one band of heavy density.
According to conservative model of replication, the original strands do not separate from each other during replication. Hence, after replication the old strands are together and the new strands are together.
Here, cells were grown in 14N medium first so 14N was used for DNA replication and all DNA molecules had 14N. When the cells were transferred to 15N medium, only 15N was available for replication process. New DNA molecules would be synthesised using 15N (15N15N) and old DNA molecules have 14N (14N14N). Hence, in density gradient one band will be of light density (14N14N) and one band will be of heavy density (15N15N).
Another term for psychographic characteristics is _______________
The rate at which an ecosystem's producers convert solar energy to chemical energy stored in biomass is called ______.
The rate at which an ecosystem's producers convert solar energy to chemical energy stored in biomass is called primary productivity.
The primary productivity in an ecosystem is the rate at which energy is accumulated by the photosynthetic and chemosynthetic activity of the ecosystem's producers in the form of an organic substance that can be used as a nutritive material.
Therefore, we can conclude that the rate at which an ecosystem's producers convert solar energy to chemical energy stored in biomass is called primary productivity.
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The struggle of several organisms for the same resource is called