CO2 is produced during respiration by mitochondria.
To know why there is more CO2 in the air that you breathe out than the CO2 which you inhale, we have to know that the carbon which we breathe out as carbon dioxide comes from the waste products (the carbon in the food we eat) like the carbohydrates, fat, and protein which converted in the body by biochemical pathways to glucose. the end products of oxidation of glucose are water and carbon dioxide. This carbon dioxide which dissolved in the human blood is carried to the air in the lung by circulation before it exhales.
Answer:
Here's what I get
Explanation:
Each iron atom can form six coordination bonds. One of these bonds is formed between iron and oxygen.
TRUE
By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron atom.
TRUE
Molecular oxygen binds irreversibly to Fe²⁺ in heme.
False. It binds reversibly with heme.
Heme is composed of an organic protoporphyrin component and a metal atom.
TRUE
Hemoglobin and myoglobin are heterotetramers.
False. Hemoglobin is a tetramer. Myoglobin a monomeric protein.
Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron atom.
TRUE
Each hemoglobin molecule can bind four oxygen molecules; each myoglobin can bind only one oxygen molecule.
TRUE
In chemistry:
When something is oxidized, it loses electrons.
When something is reduced, it gains electrons.
So the correct statements would be the second to last and third to last statements
Answer:
0.70 J/g.°C
Explanation:
Step 1: Given data
- Mass of graphite (m): 402 g
- Heat absorbed (Q): 1136 J
- Initial temperature: 26°C
- Specific heat of graphite (c): ?
Step 2: Calculate the specific heat of graphite
We will use the following expression.
Q = c × m × ΔT
c = Q / m × ΔT
c = 1136 J / 402 g × (30°C - 26°C)
c = 0.70 J/g.°C
Answer:
n(HCl)=1.96 mol
Explanation:
CH4+4Cl2⟶CCl4+4HCl
CCl4+2HF⟶CCl2F2+2HCl
With ideal yields we will end up with 4 moles of HCl.
With 70% yields on every stage
n(HCl)=0.7*0.7*4=1.96 mol