A biology blog for students
In one of my first posts, I have talked about various human systems such as the circulatory system and respiratory system. The digestive system was one of them, and today I will be going over this system in more detail. We will cover digestion and absorption in the small intestine. Digestion in the Small Intestine... Continue Reading →
It is a widely known fact that we are surrounded by a million types of germs. Although we do get sick due to these germs, our body has a complex immune system to fight pathogens, organisms that cause disease. Our body's defense system engage in combat with pathogens and also prevents them from entering the... Continue Reading →
Homeostasis is the tendency for living things to preserve constant internal conditions within its tolerance limits. Homeostasis happens in many parts of the body; internal equilibrium must be reached in blood pH, blood glucose levels, carbon dioxide concentration, water balance, and even body temperature. Today, we will learn the how the human body controls blood... Continue Reading →
Neurotransmitters are chemical messengers in the body. They send signals in the body's nervous system by triggering electrical impulses. They also provoke reactions by effector organs such as muscle contraction or hormone release. Based on what they trigger, neurotransmitters are either excitatory or inhibitory. Excitatory neurotransmitters trigger depolarization, which increases the likelihood of a response.... Continue Reading →
The brain is one of the crucial parts of our body, and without the brain, we cannot live. Brain study is being more and more developed as countless people recognize the endless possibilities of the brain. The study of the brain is referred to as neuroscience. We will learn about different parts of the brain and how... Continue Reading →
There are so many different systems that function in our body such as skeletal system, muscular system, digestive system, etc. Each of these systems helps us live our everyday lives. They are crucial in maintaining our health. On this post, I will discuss three: the skeletal system, excretory system, and the digestive system. The picture... Continue Reading →
Before moving on to the content, I'll summarize the role of the digestive system in one sentence so that you can get a heads-up. The digestive system converts food into molecules that the body can use. It is done by four processes: ingestion, digestion, absorption, and elimination (egestion). Ingestion is the process of putting food... Continue Reading →
A chemical reaction is "a process that changes, or transforms, one set of chemicals into another." (Miller & Levine) Reactants are elements that enter into a chemical reaction and products are parts that are produced by a chemical reaction. Chemical reactions change the chemical bonds that join atoms in compounds. These actions directly connected to changes in energy.... Continue Reading →
We have been looking at four macromolecules: proteins, carbohydrates, lipids, and nucleic acids over the past few weeks. This week, we will look at three of the macromolecules, which is proteins, carbohydrates, and lipids. These three molecules are present in our everyday diet, and they have numerous uses in the body. Proteins Proteins are contained... Continue Reading →
The last post, we learned about four types of macromolecules: carbohydrates, nucleic acids, proteins, and lipids. These macromolecules are contained in different types of food. However, how can we find out which macromolecules are in a specific food? The answer is, there are five tests that allow us to know whether a certain food contains a... Continue Reading →
The Science Herald 