Cell membrane comprises two adjoining layers of phospholipids. The lipid tails of a layer facing the lipid tails of the other layer, meet at the... View Article
Phospholipids are bonds between a phosphorus molecule and a component of a lipid. In structure, they are similar to triglycerides. But, instead... View Article
The consumption or creation of water involves two types of chemical reactions - hydrolysis and dehydration. A molecule of water in hydrolysis... View Article
A heat sink is an object or substance which absorbs, dissipating heat. However, it does not undergo a related increase in temperature. Water in... View Article
Radiant energy - it is transmitted and emitted as waves instead of matter. These waves differ in length from the microwaves and radio waves to... View Article
Ultrasonography is an imaging technique, it uses the transmittal of sound waves (high-frequency) into the body. This generates an echo signal,... View Article
Magnetic resonance imaging (MRI) is a non-invasive medical imaging technique. The principle is on the phenomenon of nuclear physics, where matter... View Article
X-rays are a form of high energy electromagnetic rays comprising a short wavelength that can penetrate ionizing gases and solids. Since they find... View Article
Serous cavities are of three kinds along with their associated membranes. Pleura - it surrounds lungs in the pleural cavity Pericardium -... View Article
The posterior and anterior cavities are each subdivided into smaller cavities. In the posterior cavity, the cranial cavity comprises the brain,... View Article
Planes are imaginary two-dimensional surfaces passing throughout the body. Commonly, there are three such planes used in medicine and anatomy,... View Article
Positive feedback amplifies a change in the physiological condition of the body rather than reversing it. A variation from the normal range... View Article
Humans have a temperature regulation feedback system that operates by facilitating heat gain or loss. In the event when the temperature... View Article
It is a condition wherein gases dissolved in the blood or other body tissues are not dissolved once a reduction in the body pressure occurs. This... View Article
In order for the body to maintain a stable temperature, it continuously engages in coordinated physiological processes. Controlled hypothermia is... View Article
It is the ability of an entity to adapt to changes in its external and internal environments. For instance, responsiveness to external stimuli... View Article
The formation of a dikaryon is a characteristic feature of the subkingdom Dikarya. Dikaryotic are commonly formed during sexual reproduction in... View Article
A filiform apparatus' function is to guide pollen tubes’ entry, extract food from the nucleus, and help metabolites at short distances. The... View Article
The main differences between perisperm and endosperm are: Perisperm It is diploid It is a food storing tissue It develops from the nucellus... View Article
Cleistogamy is the self-pollination occurring in an unopened flower. The disadvantages of cleistogamy are: Continued self-pollination may lead... View Article
