The statement: a tiny cell structure that carries out a specific function within the cell is known as an organelle is TRUE because organelles are membrane-bound structures that carry out specific functions within the cel
This statement describes the function of an organelle within a eukaryotic cell. Organelles are membrane-bound structures that carry out specific functions within the cell.
Examples of organelles include mitochondria, which generate energy for the cell, and ribosomes, which synthesize proteins. Each organelle has a specific function that contributes to the overall functioning of the cell. Organelles are found only in eukaryotic cells, which are cells that have a defined nucleus enclosed by a membrane.
Prokaryotic cells, which do not have a defined nucleus, do not have organelles. Instead, their functions are carried out by various structures within the cell.
The complete question is :
A tiny cell structure that carries out a specific function within the cell is known as an organelle. T/F?
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Explanation:
The blood plasma must be isotonic to maintain the health of red blood cells. Isotonic means that the concentration of solutes (like salts and proteins) in the plasma is the same as the concentration inside the red blood cells. This balance is crucial for several reasons:
1) Osmotic Balance: An isotonic environment prevents water from rushing into or out of red blood cells. If the plasma were hypertonic (higher solute concentration), water would leave the cells, causing them to shrink and become dehydrated. If it were hypotonic (lower solute concentration), water would enter the cells, causing them to swell and potentially burst. Isotonicity maintains the ideal osmotic balance.
2) Cell Shape and Function: Red blood cells have a characteristic biconcave shape, which increases their surface area for oxygen and carbon dioxide exchange. Maintaining an isotonic environment helps preserve this shape. In hypertonic or hypotonic conditions, the cells can become distorted, compromising their ability to transport gases effectively.
3) Hemoglobin Function: Hemoglobin, the protein responsible for carrying oxygen in red blood cells, relies on an appropriate ionic balance to function optimally. Changes in plasma tonicity can affect the ability of hemoglobin to bind and release oxygen.
In summary, an isotonic blood plasma environment is essential for the health and proper function of red blood cells, ensuring they can efficiently transport oxygen and carbon dioxide while maintaining their structural integrity.
Changes in population are independent of the availability of an ecosystem's resources.
B.
Population sizes are limited by the amount of resources that are available.
C.
As populations grow, ecosystems produce more resources in order to support the larger population.
D.
Large populations need the same amount of resources as small populations.
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Answer:
B
Explanation:
The answer is B; there cannot be a large population in an ecosystem that only provides a small amount of food; similar to how a family of six cannot live off of the same amount of food that a single person could easily live off of. This concept rules out both A and D, and C is also incorrect because the ecosystem is independent of the population, it is not aware of the amount of organisms living it; so it cannot alter it's resources based off of what organisms live in it.
B.Near shore zone
C.Coral reef
D.Open ocean
Answer;
D. The Open Marine ecosystem
Explanation;
An ecosystemis the lowest level of environmental complexity that includes living (biotic factors)and nonliving factors (abiotic factors).
-The Open marine ecosystem contains the fewest photosynthetic producers, this is because most producers can't live or survive in an areas with the lack of nutrients or sun light. They need nutrients for growth and also sunlight to undertake the process of photosynthesis which helps them make their own food.
The D. open ocean is the marine ecosystem that contains the fewest producers, such as phytoplankton.
Marine ecosystems are diverse and complex aquatic environments found in oceans, seas, and coastal regions. They support a wide range of life forms, from microorganisms to large marine mammals. These ecosystems play critical roles in Earth's climate regulation, nutrient cycling, and food production, making them vital for global ecological balance.
The marine ecosystem that contains the fewest producers is the open ocean. The open ocean is characterized by low levels of nutrients and sunlight, which limits the growth of producers such as phytoplankton. Instead, the primary producers in the open ocean are photosynthetic bacteria and archaea, which can thrive in these extreme conditions.
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b. False
Answer:
photosynthesis
Explanation:
Chlorophyll a absorbs the wavelengths of violet-blue and orange-red light and functions as a primary electron donor during the election transport chain in photosynthesis. It also functions in transporting energy to the reaction center where P680 and P700 are located.