Answer:
Grana
Explanation:
The thylakoids are arranged in tight stacks called grana (singular granum).
Answer:
A stack of thylakoids is called a grana.
Explanation:
Thylakoids are flattened, membrane-bound structures found within the chloroplasts of plant cells and some photosynthetic bacteria. They contain the pigments and other molecules necessary for the process of photosynthesis.
A grana is formed when multiple thylakoids stack on top of each other. These stacks are connected by intergranal lamellae, which are extensions of thylakoid membranes that link adjacent grana together.
The arrangement of thylakoids into grana is important for the efficiency of photosynthesis. It increases the surface area available for light absorption and provides a structured organization for the flow of electrons and energy during the light-dependent reactions of photosynthesis.
In summary, a stack of thylakoids is called a grana. This organization of thylakoids plays a vital role in the process of photosynthesis by providing an efficient structure for light absorption and electron transport.
plz help. need this answered 4 science.
Answer:
Most ocean pollution begins on land.
Much of this runoff flows to the sea, carrying with it agricultural fertilizers and pesticides. Eighty percent of pollution to the marine environment comes from the land. One of the biggest sources is called nonpoint source pollution, which occurs as a result of runoff.
Answer:
Plastic pollution: The ocean is estimated to contain millions of tons of plastic debris, much of which comes from land-based sources.Chemical pollution: The ocean is also contaminated with a wide range of chemicals, including pesticides, herbicides, and industrial and household chemicals.Nutrient pollution: Excess nutrients, such as nitrogen and phosphorus, can enter the ocean from agricultural and urban runoff and contribute to the growth of harmful algal blooms.Oil pollution: Oil spills and other oil discharges into the water can have a negative effect on the animals and marine ecosystems there.
Explanation:
https://www.quora.com/What-percent-of-the-ocean-is-polluted
B) ATP catalyzes all metabolic reactions.
C) ATP allows one organelle to be exchanged for another.
D) most of the energy that drives metabolism is supplied by ATP.
ATP is called the energy currency of the cell because most of the energy that drives metabolism is supplied by ATP. Thus, the correct option for this question is D.
ATP stands for Adenosine Triphosphate. It may be defined as a type of high energy-carrying compound that is significantly produced by the cells of living organisms in order to accomplish all sorts of metabolic activities for their survival.
This ATP is produced by cellular respiration where oxygen and glucose are dissociates in order to produce carbon dioxide, water, and energy in the form of ATP.
This synthesized ATP is then utilized by each and every cell of the living organisms in order to fulfill the required amount of energy to terminate metabolic activities like glycolysis, the Krebs cycle, etc.
Therefore, most of the energy that drives metabolism is supplied by ATP is the most prominent reason for ATP being the energy currency of the cell. Thus, the correct option for this question is D.
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The answer is most of the energy that drives metabolism is supplied by ATP. ATP is the energy that drives metabolism. The answer is D because I took a quiz and that was the answer.
Answer:
B
Explanation:
Energy always flows from the sun, to the producer, to the primary consumer, to the secondary consumer, to the tertiary consumer, and so on. Algae has to come after the sun, because it's a producer.
Answer:
B. anisogamous
C. oogamous
D. none of the above
Human gametes are anisogamous, which means the reproductive cells are different in size. The male gamete, sperm, is smaller and motile while the female gamete, ovum, is larger and non-motile.
Human gametes are B. anisogamous. The term 'anisogamous' means that the gametes or the reproductive cells are different in size. In human beings, the male gamete, or sperm, is smaller and motile, while the female gamete, or ovum, is larger and non-motile. This is a typical characteristic of sexually reproducing species where there are distinct male and female gametes. Isogamous refers to species where the gametes are of equivalent size and morphology, and oogamous pertains to species where a tiny, motile sperm fertilizes a large, stationary ovum, which is primarily in many algae and fungi. So, among the given choices, human beings fall under the category of anisogamous.
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B) A monohybrid cross produces a single progeny, whereas a dihybrid cross produces two progeny.
C) A dihybrid cross involves organisms that are heterozygous for two characters and a monohybrid cross involves only one.
D) A monohybrid cross is performed for one generation, whereas a dihybrid cross is performed for two generations.
E) A monohybrid cross results in a 9:3:3:1 ratio whereas a dihybrid cross gives a 3:1 ratio.
Answer:
B
Explanation:
Blood tests for allergies measure IgE antibodies to certain allergens in the blood. The testing that is most often used is called RAST (radioallergosorbent test).