Red blood cells contain a protein called hemoglobin. An illustration of red blood cells showing the hemoglobin protein. This protein serves as a transporter of oxygen from the lungs to tissues.
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What are proteins?</h3>
The term "protein" refers to a macro- and large-scale biomolecule that has one or more lengthy chains of amino acid residues.  An amino acid chain makes up the basic building block of proteins. 
When oxygen binds to the heme portion of the hemoglobin molecule in red blood cells during physiological respiration, oxyhemoglobin is created. This procedure takes place in the pulmonary capillaries close to the lung's alveoli.
Thus, red blood cells contain a protein called hemoglobin. An illustration of red blood cells showing the hemoglobin protein. This protein serves as a transporter of oxygen from the lungs to tissues.
To learn more about proteins, refer to the link below:
brainly.com/question/17095120
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There are currently 
22 active volcanoes in Luzon
428 in Visayas 
and 20 in mindanao
        
             
        
        
        
The color of beef is determined by myoglobin because these cells are actually responsible for transporting oxygen-rich molecules to the the tissues of the animal. This characteristic gives it the color that it has and is very abundant in large organisms like cattles.
        
             
        
        
        
Answer:
The strong hydrogen bonds   in water made water stable and difficult to breakdown into constituent  oxygen and hydrogen atoms.  at a temprature less than 100 degree.. 
Oxygen is a strong electronegative atom than  the two hydrogen atoms it is attached to in  water. It  pulls more electrons to itself than the hydrogen atoms.. This strengthened  hydrogen bonds in water . 
Consequently, it will be difficult for the needed oxygen atoms to simply diffuse into the alveoli to reach the blood,Compare to its  molecular form  where its atoms awere held  by relatively week covalent bonds.
Besides the porosity    of the thin  alveolar endothelial   walls of 0.2 micrometer is   too small for the larger water molecules to pass through.
Explanation:
 
        
             
        
        
        
ANSWER: 
Cytokines, Chemokines, Leukocytes, Neutrophils, Macrophages, and Dendritic cells are all involved
EXPLANATION:
On the incidence of Streptococcus, the immune system activates a complex response that relies basically on the instatement and activation of macrophages, neutrophils, and dendritic cells. 
These activities will only occur on the activation of innate immune responses through workout between pattern recognition receptors (PRRs) with streptococcus derived pathogen-associated molecular patterns (PAMPs).
Moreso, cytokines and chemokines (well known are IL-1β and CXCL1 respectively) produced by macrophages and dendritic cells on exposure to Streptococcus, elicits neutrophil.
Neutrophils then produces antimicrobial proteins, reactive oxygen species (ROS) and sometimes neutrophil extracellular traps (NETs), all these for the bacterial infection control.