Biochemistry

Positive antibodies indicate that the immune system has produced antibodies in response to a specific infection or vaccination. These antibodies help protect the body against future encounters with the same pathogen by recognizing and neutralizing it.

In 100 gms. of pineapple, you can see: Vitamin C 15.4 mg.

Vitamin A 23IU.

Vitamin B-6 0.087 mg.

Vitamin E 0.1 mg.

Thiamin 0.092 mg.

Riboflavin 0.036 mg.

Niacin 0.420 mg. Except that the following minarals can found in pineapples: calcium, iron, magnesium, phosphorous, potassium, zinc, copper and sodium. 100 g of pineapple would also provide 49 kcals, 86.50 g water, and 1.2 g fiber.

Increasing the room's temperature, exposure to ethylene gas, storing the fruit in an enclosed container, such as a paper bag, and exposure to fruit that has already ripened, will accelerate the ripening process.

The vitamin K content in herbs can vary widely. Some herbs like parsley, basil, and coriander are good sources of vitamin K, while others may have lower amounts. It's recommended to consume a variety of herbs in moderation to benefit from their nutrients.

Biofeedback is a technique that helps individuals control physiological processes through monitoring and feedback. Enzyme activity refers to the ability of enzymes to catalyze chemical reactions in living organisms. While biofeedback does not directly affect enzyme activity, it can help manage stress and improve overall health, which can indirectly impact enzyme function by creating a more favorable physiological environment for enzymatic reactions.

the most common acid ingrediants used for preserving foods are vinegar and citric acid from citrus fruit such as lemons.

BOTH of these ingredients have a pH level of around two and therefor inhibit the growth of micro organisms and subsequent detrioration of the food

Thermophilic enzymes are stable (they grow and thrive) at temperatures between 60-80 degrees Celsius. This makes them easier to study. This is because mesophilic enzymes will denature at these temperatures, and unlike mesophilic enzymes, thermophilic enzymes will not denature at room temp (25 degrees Celsius, making it easier for scientist to work with thermophilic enzymes. In other words, in biotechnology thermoenzymes have thermo stablity that mesophilic enzymes do not, making them much better use under certain conditions ( where mesophilic enzymes would denature).

The final products of aerobic respiration in both plants and animals are carbon dioxide, water, and energy in the form of ATP. Oxygen is consumed as a reactant during this process.

Let's consider for a moment what we usually mean when we refer to states of matter. Typically, we think of four states: solid, liquid, gas, and possibly plasma. There are more, but for this explanation it will be easiest to think of it this way.

Now, let's look at how we move from one state to another. Suppose you have a block of ice, and you want to melt it. How are you going to do this? Most likely, you would suggest heating it. But heating is really just the introduction of thermal energy to your block of ice. In other words, you're adding energy, and as the molecules of water get more energetic, they change states so they can move around more easily. Thus, you go from solid to liquid.

The same reasoning goes for the other phase transitions. So, in our four-state scheme (again, solid->liquid->gas->plasma), plasma is the highest energy state of matter.

Transthyretin must have a tetrameric structure, meaning it is composed of four subunits. Each subunit consists of four beta strands forming a beta-sheet structure, which are important for binding thyroxine and transporting it in the blood. The stability of the tetrameric structure is crucial for proper protein function.

Mendel's observation of the purple flowers in the F1 generation and both purple and white flowers in the F2 generation indicated that traits are inherited as discrete units called alleles. The presence of both traits in the F2 generation showed that the white flower trait was not lost and could reappear in later generations, demonstrating the concept of dominant and recessive alleles.

The word "vitamin" is a shortening of "vital amine", because when they were first discovered it was believed that all of them were amines (a particular type of chemical) and they were "vital" to health.

There are many different vitamins, and they each have a different function in the body. Folic acid, for example, is important in cell reproduction. Vitamin A is important in the synthesis of a chemical your body needs to produce light receptors in your eyes. So there are as many different answers as there are different vitamins.

A healthy diet provides all the vitamins you need naturally. However, most people don't eat a healthy diet, and even some diets that are otherwise very good for you may be lacking in certain vitamins. That's the main purpose of supplemental vitamin pills: to make up for any dietary deficiencies.

The amount of energy in a photon of light is proportional to the frequency of the corresponding light wave.
... frequency of the electromagnetic radiation of which the photon is a particle.

The precursor to vitamin D is a prohormone called 7-dehydrocholesterol, which is present in the skin. When exposed to UV rays from sunlight, this precursor is converted into vitamin D3, which then undergoes further processing in the liver and kidneys to become the active form of vitamin D.

Cobalt is a mineral required by the body for blood formation. It is an integral part of Vitamin B12 (cobalamin), a vitamin essential for producing red blood cells and maintaining the nervous system. Cobalt activates several metabolic enzymes and is necessary for myelin formation (an insulating layer found around nerves) and thyroid hormone production, supports red blood cell production,and is essential for the metabolism of fats and carbohydrates, the synthesis of proteins, the production of DNA and RNA, and the conversion of folate to its active form. Cobalt is used to treat anaemia with pregnant women, because it stimulates the production of red blood cells. It is also used by athletes to increase the oxygen-carrying ability of the blood.

When you eat foods with proteins, your body breaks down the proteins into amino acids, then combines those amino acids to make the proteins it needs.

Meat products tend to have more amino acids, so are naturally more beneficial to your body. Some substitutes are possible, except they do not always have the amino acids you need.

Glycogen is the primary form of short-term energy storage in animals. It is stored in the liver and muscles and can be quickly broken down into glucose for energy during times of increased energy demand.

The SI unit of enzymes is not widely recognized, as enzymes are measured in activity units such as international units (IU) or micromoles per minute (µmol/min). The activity of an enzyme is typically based on its catalytic activity or the rate at which it catalyzes a specific reaction.

Waxes typically have longer carbon chain lengths compared to fats, which gives them a higher melting point. Additionally, waxes often contain straight-chain hydrocarbons which pack together more tightly, requiring more energy to break their bonds and melt them. This structural difference contributes to the harder and more difficult to melt properties of waxes compared to fats.

Some examples of names for saturated fatty acids include stearic acid, palmitic acid, and lauric acid. These fatty acids are characterized by having single bonds between carbon atoms in their carbon chains.

In reference to the melting of DNA: as DNA melts (denatures from a double-stranded molecule to two single strands) the UV absorbance INCREASES. This absorbance increase is referred to as a "hyperchromic shift" or the hyperchromic effect. Thinking about this situation in reverse: the UV absorbance DECREASES as two DNA strands anneal to form double stranded DNA. This is referred to as the "hypochromic effect".

(Please note, there is an answer on answers.com that incorrectly states the opposite, that absorbance decreases with melting. This is incorrect. Two single strands of DNA have higher absorbance than the double-stranded molecule.)

NO.

A microgram is a measure of weight and a microlitre is a measure of volume. Every liquid has its own density (weight per volume). One litre of water is equal to one kilogram, or one mL water weighs 1 gram. Therefore, one mg water is one ul in volume.

(SP)

Or vice versa. 1 ul = 1ug is not the same....There is no direct conversion for others.

If it is a conversion of concentration regarding absorbance (spectrophotometer), there should be other information provided to convert them. For example; formula of concentration = mass/volume. They might have provided the concentration of the substance and the volume which you currently have in ul (change to ml before applying into the formula). One can get the mass in gram and convert them as needed unit.

Best to check with lecturer, as it depends on the type of question one is doing.

A 5-carbon sugar, Phoshate group, and a nitrogenous base make nucleotides. The nucleotides are made of adenine, guanine, cytosice, thymine, and uracil. The nucleotides make the nucleic acids. Nucleic acids are made in only two types, Deoxyribonucleic acid(DNA) and Ribonucleic Acid (RNA)

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