Organisms are made up of one or more cells is the basic unit of life.
Answer:
A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane.
Explanation:
Answer:
The three products of cellular respiration are:
- ATP
- Water
- Carbon dioxide
Explanation:
- Cellular respiration is the process of breaking down glucose molecules to yield energy in the form of ATP.
- C6H12O6 + 6O2 → 6CO2 + 6H2O
ATP Production:
- The first step of cellular respiration, glycolysis, yields 2 net ATP.
- The second step, Kreb's cycle produces 10 NADH and 2 FADH2 molecules. Both these molecules store energy that is released in the electron transport chain to produce 34 ATP.
- Therefore, a total of 36 ATP are produced as a result of cellular respiration in eukaryotes.
Carbon dioxide Production:
- 2 molecules of CO2 are produced during the conversion of pyruvate into Acetyl Co-A by the <em>pyruvate dehydrogenase</em> complex.
- 4 molecules of CO2 are produced in the Kreb's cycle.
Water Production:
- Water is produced in the Electron Transport Chain (ETC) by the reduction of oxygen.
Answer:
option B) is correct
Explanation:
The all or none response means that if a muscle contracts, it will contract completely. Thus implying the all or none law which states:
The potential of a response of a muscle fiber or nerve cell is independent of the potential of the stimulus. If a stimulus is more than a certain critical value it will trigger muscle fiber or a nerve. Most importantly resulting in either an all-or-none response thus reducing possibility of any information loss.
