Complete the data table by selecting the term or phrase that best fits in each spot.
Location A: The reactants in cellular respiration include
DONE
Process
Energy
Reactants
Products
Energy
Source
Organisms
Site
Photosynthesis
Produces
glucose
Makes and
stores energy
Carbon dioxide
and water
Glucose and
oxygen
B
Plants, algae,
some bacteria
Chloroplasts
CellularRespiration
Breaks down glucose
Releases energy for use
A. Carbon dioxide and water
B. Sugars
C. Mitochondria
The Correct answer and Explanation is:
To complete the data table for cellular respiration, we need to identify the reactants, products, energy source, organisms, and the site of the process. Here’s how the table should look, focusing on Location A for cellular respiration:
Completed Data Table
| Process | Energy | Reactants | Products | Energy Source | Organisms | Site |
|---|---|---|---|---|---|---|
| Photosynthesis | Produces glucose | Carbon dioxide and water | Glucose and oxygen | Plants, algae, some bacteria | Chloroplasts | |
| Cellular Respiration | Releases energy for use | Glucose and oxygen | Carbon dioxide and water | Sugars | Plants, animals, fungi, some bacteria | Mitochondria |
The Correct answer and Explanation is:
Explanation
Cellular Respiration Overview
Cellular respiration is a biochemical process that occurs in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), which is then used as a source of energy for cellular activities. The process primarily occurs in the mitochondria, often referred to as the “powerhouses” of the cell.
Reactants and Products
In cellular respiration, the primary reactants are glucose and oxygen. Glucose is derived from carbohydrates obtained through food, while oxygen is absorbed from the environment. The cellular respiration process consists of several stages: glycolysis, the citric acid cycle (Krebs cycle), and oxidative phosphorylation. Through these stages, glucose is broken down, releasing energy stored in its chemical bonds. The process ultimately produces carbon dioxide and water as byproducts, which are expelled from the cell and the organism.
Energy Release and Utilization
The energy released during cellular respiration is captured in the form of ATP, which is utilized for various cellular functions, including growth, reproduction, and maintenance of cellular structures. This energy release is essential for all living organisms, including plants, animals, fungi, and some bacteria. Although plants can produce glucose through photosynthesis, they also perform cellular respiration to break down this glucose for energy, especially during the night when photosynthesis does not occur.
Importance of Mitochondria
Mitochondria play a crucial role in cellular respiration as they house the enzymes necessary for the Krebs cycle and oxidative phosphorylation. This organelle facilitates the conversion of energy stored in food into usable ATP, underscoring its vital function in energy metabolism within the cell.