Do bacteria have mitochondria?

Bacteria are prokaryotic microorganisms and as such they lack intracellular membranous organelles, including mitochondria. In fact, bacteria not only do not have mitochondria, but the mitochondria themselves seem to originate from bacteria that were integrated into eukaryotic cells through a phenomenon of endosymbiosis. There are eukaryotic unicellular organisms, descendants of primitive eukaryotes, that do not […]

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Do over-the-counter drugs have side effects?

Over-the-counter drugs, also known as OTC drugs, from the English expression Over The Counterare drugs whose dispensing is not subject to mandatory medical prescription. The most common are analgesics and anti-inflammatories. Anti-catarrhals, antitussives, laxatives, antidiarrheals, and other ailments that by their nature are considered minor or frequently due to temporary causes are also very common. […]

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Did you know that pineapple is not a fruit?

Pineapple (Ananas comosus) is a well-known fruit and it must be recognized that it deserves its fame for being delicious, refreshing and having some very interesting properties, among which the bromelain propertiesa substance with diuretic action, which helps in the digestion and metabolization of food, detoxifying, antacid and has even shown an anti-carcinogenic effect (doi:10.1002/biof.121. […]

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Difference between allogamy, xenogamy and geitonogamy

Both allogamy and xenogamy are terms used in biology to describe two types of sexual reproduction that differ in the origin of gametes male and female involved in fertilization. If the gametes come from the same individual, we speak of autogamy. If the gametes come from different individuals, they are called allogamy. When talking about […]

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Capsid, the protein envelope of viruses

Viruses are microscopic infectious agents without cellular structure. In a very basic way, viruses are made up of a protein capsule, which is called capsidenclosing one or more molecules of genetic material. There are viruses that contain RNA (ribonucleic acid), and there are viruses that contain DNA (deoxyribonucleic acid). The main functions of the capsid […]

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Can you take fiber in case of diarrhea?

Diarrhea generally encompasses the deposition of soft and watery stools. It can be caused by many reasons and is so common that many people have diarrhea several times a year. It is not usually serious and goes away on its own in a few days, although it can also be a symptom of other diseases. […]

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Can I take several vitamin capsules at the same time?

Capsules and other presentations of vitamin supplements are usually considered harmless and there is a certain tendency to think that, as they are vitamins, taking too much is not dangerous or that several can be combined at the same time without any problem. But the truth is that taking several capsules of the same or […]

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Can a brown couple have a blonde child?

Each person receives half of their genes from one of their two parents and the other half from the other parent, combining to generate a individual set of genes. Although most of these genes are very similar between different people, each one has its own combination. Even among members of the same family, genetic variability […]

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Can I get pregnant with only one ovary?

The chances of pregnancy are generally the same whether you have one ovary or two, as long as the existing ovary ovulates and remains attached to the healthy fallopian tube on the same side. If an ovary and fallopian tube remain on the opposite side, the chances are smaller but possible. Other missing parts of […]

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Can I take ibuprofen and paracetamol at the same time?

Paracetamol and ibuprofen are the INN names of two of the most commonly used drugs to treat pain (analgesics) and fever (antipyretics). They have a similar molecular structure and follow a mechanism of action related to cyclooxygenase inhibitionessential enzymes for the synthesis of prostaglandins, substances involved in pain, inflammation and fever. The two drugs have […]

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At what age do baby teeth fall out?

The human being is a diphyodont animal, like the vast majority of mammals, since we develop two complete sets of teeth throughout our life. The first set of teeth is known as primary teeth, “baby” or deciduous teeth (from Latin deciduous, which means fall). The second dental set is the secondary or permanent dentition. The […]

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Are there plants without roots?

The plants, if we refer to the Kingdom plant, are a very extensive group of organisms characterized by being photosynthetic, having a cellulose cell wall and lacking voluntary locomotor capacity. inside the kingdom plant Embryophytes and various groups of algae, all of which are evolutionarily related, are included. The colloquial use of the word “plant” […]

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