Photosynthesis: The Process of Plants Creating Food
The process that plants carry out in the presence of radiant energy in order to create their food is known as photosynthesis.
The Role of Chlorophyll
Chlorophyll is a chemical found in most plants that gives them their green color. The process of photosynthesis is possible due to the chlorophyll present in plant leaves. During this process of food generation, the following reaction takes place:
6 CO2 + 6 H2O → (in the presence of sunlight) C6H12O6 + 6 O2
Plant photosynthesis occurs in leaves and green
Read MoreUnderstanding the Human Cardiovascular System and Blood
The Cardiovascular System: Heart and Blood
The heart is the pump that moves blood through the cardiovascular system. It consists of two halves separated by a muscular wall.
Structure of the Heart
Each half of the heart is divided into an upper and lower cavity. The heart is enclosed in the pericardium, a double sac that provides a fluid-filled space for it to beat freely.
- Myocardium: Muscle tissue that forms the heart wall.
- Atria: The upper chambers of the heart.
- Ventricles: The heart’s lower chambers.
Vertebrate Respiration and Digestion: An In-Depth Look
Pulmonary Respiration
Pulmonary respiration: The lungs are densely vascularized outgrowths of respiratory surfaces. They are typical of terrestrial vertebrates, although similar structures appear in some invertebrates, like terrestrial gastropod mollusks. In these mollusks, the mantle cavity becomes vascularized and is transformed into a lung chamber, lacking a ventilation mechanism. Therefore, these respiratory organs are called diffusion lungs.
The swim bladder is an organ that stores oxygen that
Read MoreClass II Amalgam Preparation Technique
Clinical Technique for Class II Amalgam Preparations
Class II Cavity – develops slightly gingival to the proximal contact
- 1 occlusal box and 1 proximal box
Principles of Tooth Preparation
- Establishing outline form
- Establishing convenience form
- Establishing resistance form
- Establishing retention form
- Removal of remaining caries
- Finishing of the enamel wall
- Cavity debridement
Cavity Preparation
Initial Prep (Occlusal Outline Form) / Occlusal Box or Occlusal Step
- Similar to a Class I Cavity Prep
- Use 1/4 or 1/2 on
Prokaryotic and Eukaryotic Cells: A Comparison
Eukaryotes and Prokaryotes (EC / PC)
Plasma Membrane
The plasma membrane of prokaryotic and eukaryotic cells exhibits significant similarities in both basic function and structure. It acts as a permeability barrier, separating the cell’s interior from its external environment. This layer is composed of phospholipids and proteins, which can be organized in various ways.
Ribosomes
In prokaryotes, ribosomes are small structures composed of protein and RNA, serving as the site of protein synthesis. In eukaryotes,
Read MoreUnderstanding Clinical Lab Tests: CBC and Blood Cell Analysis
Interpretation of Clinical Laboratory Tests
Common blood tests are performed to identify the general health status of a patient and to determine the positive or negative effects of therapy. These tests are important for respiratory therapists because they may influence and reflect the patient’s lung functions.
CBC: Complete Blood Count
Venous blood sample. Examines the formed elements in the blood:
- White Blood Cells (WBCs/Leukocytes) – Segmented neutrophils, Bands, Eosinophils, lymphocytes, monocytes.