BASIC CHEMISTRY
what is the general formula of glucose
C6 H12 O6
What is cellular respiration?
A chemical reaction that releases energy by breaking down glucose with oxygen in cells
What was used in the experiment to show the presence of carbon dioxide?
Phenol red solution.
Why is the mitochondrion called the "powerhouse" of the cell?
Because it produces energy (ATP) through cellular respiration.
How is cellular respiration connected to the process of breathing?
Breathing provides oxygen to the body for cellular respiration and releases carbon dioxide, a byproduct of the process.
What happens when carbohydrates react with oxygen in the presence of a chemical reaction?
They release energy, carbon dioxide, and water.
What are the inputs (reactants) needed for cellular respiration?
Glucose and oxygen.
In the experiment, what color did phenol red turn when carbon dioxide was added?
Yellow (indicating an acidic solution).
What role does the mitochondria play in cellular respiration?
It is the site where glucose and oxygen are combined to release energy in the form of ATP.
What happens to the body’s cellular respiration during exercise?
The body produces more carbon dioxide as cells require more energy, and more oxygen is needed for respiration.
What is released as a byproduct when carbohydrates react with oxygen in a chemical reaction?
Carbon dioxide (CO₂) and water (H₂O).
Where does cellular respiration take place in cells?
In the mitochondria.
What was the primary observation that suggested a chemical reaction had occurred during the lab?
The color change of phenol red from red to yellow.
How does oxygen enter the cells for cellular respiration?
Oxygen diffuses into cells from the blood through the semipermeable cell membrane
How might stopping breathing affect cellular respiration in your body?
Without oxygen, cellular respiration would slow down or stop, leading to a lack of energy production in the cells.
what do we call the elements before the arrow in a. chemical equation
reactants
What are the products (outputs) of cellular respiration?
Carbon dioxide (CO₂), water (H₂O), and energy (ATP).
What did the time measurement in the experiment show regarding the effect of exercise on CO₂ diffusion
The time it took for the color change decreased after exercise, indicating a faster CO₂ diffusion rate.
What would happen to cellular respiration if there were no mitochondria in a cell?
The cell would not be able to produce energy (ATP), causing it to malfunction or die.
Why is it important to exhale completely during exercise?
Exhaling completely helps remove excess carbon dioxide from the body, allowing cellular respiration to continue efficiently.