Can a catalyst be used over and over again?

Answers

Answer 1

Answer: Yes they can because the catalyst does not take part in the chemical reaction and remains unchanged after the reaction has ended. Biological catalysts are known to be recycled by the bodies in which they work.

Related Questions

Humans get which of the following kinds of products from plants?a. medicines b. dyes c. rubber d. all of the above
How could you determine the best concentration of solutes to give to a patient in need of IV fluids before you introduce the fluids into the patient's body?
Which provides long-term energy storage?a. Glycogenb. Glucagonc. Glucosed. Cellulose
What would happen if cytokinesis took place before mitosis?
What phase do sister chromatids move apart?

Glaucoma is a leading cause of blindness. Studies have linked a common form of glaucoma to three genes and more than 20 genetic loci. Which best describes glaucoma?

Answers

Answer:

Glaucoma is polygenic trait.

Explanation:

As per given information, Glaucoma disorder is a phenotype regulate by three genes and more than 20 genetic loci. A genetic trait that is regulated by more than one gene is called polygenic trait.

Here, Glaucoma is regulated by three genes. This makes it a polygenic trait. The phenotype depends on the total number of dominant alleles of all the three genes.

Glaucoma is best describes as a mutation

The cell membrane of a red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. Since other substances are blocked from coming in, this membrane is called A. perforated. B. semi-permeable. C. non-conductive. D. permeable.

Answers

Answer:

The correct answer would be B. semi-permeable.

Plasma membrane of any cell including red blood cell is semi-permeable in nature as it is made up of lipid bilayer.

It permits the passage of certain substances across the membrane while it blocks other substances.

Gases, small uncharged or non-polar substances such as oxygen, carbon dioxide, et cetera can easily pass through the cell membrane of a cell.

Large or charged molecules such as proteins, sodium ions, potassium ions et cetera can not pass through the cell membrane. They require carrier proteins to pass through the membrane.

Because only certain things are allowed to pass through, this would be considered semi-permeable. B.

Explain why the lithosphere is indispensable to life. Give at least two reasons. PLEASE ASAP

Answers

The lithosphere of Earth comprises the crust and the uppermost mantle. The lithosphere consists of separate tectonic plates. The uppermost part of the lithosphere has undergone chemical and physical processes to form a soil layer called the pedosphere. The pedosphere is vital to life on Earth and an intrinsic part of all terrestrial ecosystems. The pedosphere provides a substrate for primary producers, i.e., plants, which are in turn vital for all other life on Earth. The pedosphere is also a vital part of the hydrological cycle, as groundwater feeds streams and soil and groundwater is taken up by plants.

During the development of a chordate embryo, a ________ develops along the back of the embryo.a. notochord
c. dorsal fin
b. gill slit
d. zygote

Answers

The answer is a. notochord.

The notochord develops along the back of the embryo. It derives from the endoderm during the gastrulation. It extends along the anteroposterior axis of the embryo.

Among the other choices, a zygote could not be the right answer because an embryo eventually develops from the zygote. A dorsal fin is not along the whole back of the embryo, and gill slit is usually on the side of the shark head.

In what form is the energy that is absorbed by plants' leaves?

Answers

The plant would absorb solar energy and through photosynthesis create sugars the plant can digest.

Which of the following makes the statement FALSE? In the alternation of generations life cycle, the generations that alternate A. Are haploid and diploid multicellular organisms B. Produce each other C. Directly develop into one another as parts of the same individual D. May be physically attached

Answers

Answer:

The false statement is option C. Directly develop into one another as parts of the same individual.

Explanation:

Alternation of generations is one of the type of the life cycle which is common in land plants and some of the alga species change n between haploid and diploid generation alternatively of an individual. It is presented in the plants only as in animals both haploid and diploid cell present in every generation.

In the alternation of generation, generation does not directly develop into each other as part of the particular individual.

Thus, the correct answer is option C. Directly develop into one another as parts of the same individual.

Other Questions

A hydrangea plant has blue flowers when grown in acidic soil, but has pink flowers when grown in basic soil. A clone of the pink-flowered plant is grown in acidic soil and produces blue flowers. This change in flower color is most likely due to:_____a. sexual reproduction in the plantsb. resulting in variationasexual reproduction in the plants c. resulting in variationgenes being expressed in different ways due to environmental conditionsd. a gene mutation that occurred after the clone was produced

What is Photosynthesis??

Why is carbon so abundant in living things when oxygen is the most abundant element on Earth? a. Carbon atoms can bond with one another to make chains and cyclic structures whereas oxygen atoms cannot form chains or cyclic structures.b. Carbon atoms are found in compounds that are solids at room temperature whereas oxygen atoms are found in compounds that form gasesc. Carbon atoms have lower mass than oxygen atoms, which keeps the masses of living things within desirable limits.d. Carbon atoms are more stable than oxygen atoms, which allows living things to have more stable compositions.

Humans and chimpanzees have very similar DNA. what does this say about these two species?