a defect in which of the following molecules would dramatically reduce the rate of diffusion of water across cell membranes?

Answers

Answer 1

Answer:

A defect in the aquaporin molecule would dramatically reduce the rate of diffusion of water across cell membranes.

Aquaporins are a type of protein that form channels in the cell membrane, allowing for the rapid diffusion of water across the membrane. These proteins are essential for the movement of water in and out of cells, and play a crucial role in regulating the balance of fluids in the body. If there is a defect in the aquaporin molecule, the rate of diffusion of water across cell membranes would be significantly reduced, leading to potential problems with fluid balance and cell function.

In summary, a defect in the aquaporin molecule would dramatically reduce the rate of diffusion of water across cell membranes, potentially leading to problems with fluid balance and cell function.

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Please help to explain why pine trees have needles instead of leaves and cacti have spines instead of leaves.If possible please relate these adaptations to their habitats.

And if you want to be FABULOUS....then evaluate the pro’s and opinion, justifying your ideas of the following: Pine trees are forested as a constructional timber.

Thank you for any ideas contributed, it is very much appreciated! :3 ♥ 12 Points+Brainliest for the best answer

Answers

developed a way to protect their foliage. Instead of flat leaves, pine trees have needles. These needles are the key to the Winter survival of the pine tree. Needles cut evaporation sotrees can save water!
Cacti have sines instead of leaves because they help protect them from getting eaten and they don't need leaves because they store water inside themselves.
They both have adapteations to help them servive in very harsh conditions. Cacti use their adaptations to survive in scourching heat and pine trees can servive in freezing cold.

Scientists have discovered a new species of animal. Which would
provide the best basis for
classifying this new species?
A DNA comparison
B diet of animal
C habitat of animal
D appearance of animal

Answers

A. DNA comparison
My teacher is the best science teacher, he makes it easy.

In Indian cuisine, sometimes a papaya is added to make meat cook faster. Which of the following is a plausible explanation of why this method speeds the chemical changes that occur during cooking?

Answers

The papaya, especially the green one, is used as a tenderizer in boiling red meat. This is because of the property of papaya's skin and leaves contain enzymes called papain. When this papain get contact to red meat the connecting tissue of the meat easily breaks down

Describe the details you were able to see when viewing specimens with scanning electron microscope

Answers

Answer:

The scanning electron microscope allows the elaboration of an image in which the surface characteristics of the sample are reflected, thus providing sufficient information on the shapes, textures, and chemical composition of the constituents.

Explanation:

The scanning electron microscope uses electrons instead of light for imaging.

To achieve this, the team has a device that produces an electron beam that allows the entire sample to be illuminated and, through different detectors, the electrons that are produced from the interaction with the surface of the sample are later collected.

The scanning electro microscopesallows you to view three dimensional picture of the sample.You could see all the different outer structures on the base of each sample

Which fact about fossils is MOST important to scientists who study evolution?

Answers

Knowing the age of the fossils is the most important factor for the scientists that study evolution.

The age of the fossils is found out with the help of objective and radioactive dating. The fossils themselves generally cannot be dated directly, as the majority of them have no or less of the organic substance left in it, and dating with carbon 14 is only beneficial up to the age of 35000 to 50000 years.

However, with the application of radiometric dating, the scientists are able to put an objective date. By determining the concentration of radioactive decay in specific elements since the solidification of the igneous rocks, one can find out the exact date of the fossil.

The most generally used elements for radiometric dating of rocks are uranium, argon., potassium, and rubidium as they exhibit fairly long half lifes.

A very important fact to be considered about fossils by scientists is the Age of the Fossil. This is found by Carbon Dating. The reason why the age is of high importance is because it determines during what time the fossil lived and how it is evolution.

Which of the following information can be determined from examining a pedigree diagram for trait P?A) relationships among generations; an individual's gender; whether an induvidual expresses trait P
B) an individuals gender; their allels for trait P;age
C) their age,their height,whethertheir expresses trait p
D) relationships among generations,eye colour,alleles for trait P

Answers

"Relationships among generations; an individual's gender; whether an individual expresses trait P" is the one information among the choices given in the question that an be determined from examining a pedigree diagram for trait P. The correct option among all the options given in the question is option "A".

The correct answer to your question is:

A. relationships among generations; an individual's gender; whether an individual.

I hope this helps

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