Because of the large increase in metabolic activity, the rate of respiration is significantly increased in developing seeds. So answer is- germinating seeds. Did you find that answer helpful?
The rates of respiration are lowest in dormant seeds and spores and greatest in actively developing root and stem tips, cambium, and embryos of germinating seeds. The highest rates of respiration are found in actively growing roots and stem points. Because growing tips typically contain a lot of meristematic tissues, their rates of respiration are also typically rather high.
How to measure the rate of respiration in a plant?
To analyze and contrast the rates of respiration that occur in the various plant sections. Herbaceous plants with the necessary characteristics are chosen for their various plant components, such as their roots, flower buds, and leaves. Take two milliliters of the plant component. The water displacement method is one of the ways that it may be measured.
Why is the rate of respiration very high in actively growing tissues?
- The parts of the plant that are actively developing have cells that have a relatively high concentration of protoplasm and a high level of enzymatic activity.
- As these regions continue to expand, a great number of synthetic activities are taking place.
- All of these processes require energy, which is provided by respiration.
- As a consequence, the rate of respiration in these tissues is extremely rapid.
What is the relationship between temperature and respiration rate?
- A person who is running breathes at a faster pace than a person who is standing still; as a result, the amount of respiration that a runner does is more, and the temperature of their body rises.
- The same basic idea applies to plants; when the temperature does up during the night, it also does up during the day, which causes an increase in the rate of respiration and a corresponding temperature.
How does temperature affect respiration in plants?
The same fundamental idea holds true for plants; when the temperature of the nighttime air rises, the rate of respiration also rises, which, in turn, causes the temperature to rise. Damage to the flowers and stunted development of the plant might result from this activity. As was just explained, roots are also capable of breathing.
Which of the following has highest rate of respiration?
Therefore, the response that is right is ″Germinating seed.″
Where does most respiration occur in a plant?
Stomata are the means by which plants extract oxygen from the surrounding air, much as photosynthesis does. ″Aerobic respiration″ is the term used to describe the process of respiration that takes place within the mitochondria of a cell when oxygen is present.
What is the rate of respiration in plants?
The yearly release of 40–60 percent of the total carbon fixed during photosynthesis by terrestrial plant respiration (Gifford, 1994; Amthor, 1995) accounts for about half of the annual input of CO2 to the atmosphere from terrestrial ecosystems (Schlesinger, 1997).
Why respiratory rates are higher in Meristematic region?
Meristems are nonetheless actively dividing tissues inside a plant body and have high energy requirements in order to fuel the active synthesis of numerous biomolecules that are necessary in order to continue with the division process. Meristems are located at the center of a plant. They have high rates of respiration as a result.
Why the rate of respiration is higher in germinating seeds?
Because they lack the necessary photosynthetic abilities and resources, seeds are unable to generate their own energy on their own. Therefore, there is a high rate of oxygen consumption in seeds that are germinating since they are living and require additional oxygen to thrive.
Which apparatus is used to study the rate of respiration?
A respirometer is a device that measures the rate of oxygen and/or carbon dioxide exchange within a living creature in order to calculate the rate of respiration occurring within that organism.
What are stomata what is their role in respiration?
Stomata are structures that help plants breathe via their leaves. It takes place in the following manner: oxygen from the atmosphere enters the leaf through the stomata, and then it diffuses its way into the cells of the leaf.
How does respiration occur in the roots of the plant?
- How does respiration take place in the roots of plants?
- A plant’s roots are able to draw air from the voids that are created between the particles of dirt.
- Root hairs are exposed to the air that is present in the soil particles where they are found.
- Oxygen from the air in the soil particles diffuses into root hair and travels throughout the root, where it is utilized in the process of respiration in each and every cell.
How do plants respire when stomata are closed?
Since plants are unable to perform photosynthesis at night, they do not require an input of carbon dioxide at this time. Stomata can be closed to reduce water loss that is not essential. The nighttime oxygen requirements of plant leaves are met thanks to the cuticle’s ability to facilitate diffusion of the gas. This is nothing out of the ordinary for plant life.
Why is the rate of respiration different in different plant parts?
Inference. When compared with the more mature and older sections of the plant, the respiration rate is always higher in younger meristematic tissues that are actively developing. The amount of protoplasm and the rate of respiration are intimately connected to one another. The rate of respiration increases proportionally with the amount of protoplasm present in the cell.
What increases the rate of respiration?
The rate of aerobic respiration is slowed down when there is a lack of oxygen and there is an increase in the concentration of carbon dioxide. Water: An increase in the amount of water that an organism contains leads to an increase in the respiration rate of that organism. The process of respiration is regulated by light since it causes an increase in an organism’s temperature.
What is a high respiratory rate?
When at rest, an adult should take anywhere from 12 to 20 breaths per minute as their typical respiratory rate. When a person is at rest, a respiration rate that is below 12 or beyond 25 breaths per minute is regarded to be abnormal.
What is respiration in plants?
A series of chemical processes known as respiration is what makes it possible for all organisms to generate the energy that is necessary for their continued existence. It is a biological process in which air flows between the tissues and cells of the species and the external environment.
What factors affect respiratory rate?
- Your emotional state is one of the most prevalent factors that might impact your recorded respiratory rate. Other ones include:
- Conditioning of the body
- Internal temperature
- Disease and current state of health