How do polar water molecules pass through the plasma membrane? (3 points)
Water molecules pass through channel proteins to cross the membrane.
Water molecules can pass through the membrane freely and rapidly.
Water molecules dissolve into the lipid bilayer and cross the membrane.
Water molecules attach to cholesterol and cross the membrane.

Answers

Answer 1
Water passes through the membrane in a diffusion process called osmosis. During active transport, energy is expended to assist material movement across the membrane in a direction against their concentration gradient. Active transport may take place with the help of protein pumps or through the use of vesicles.

Related Questions

what cells release histamine during allergic responses

Answers

Answer:

Histamine is a substance that is released by the body during an allergic reaction. Mast cells, which are a type of white blood cell, release the histamine, and this triggers a process which is most commonly referred to as the “inflammatory immune reaction”.

Explanation:

Antihistamine solutions can reduce allergies. I am allergic to mosquito bites.

The cells release histamine during allergic responses are the mast cells.

What types of cells are involved in allergy?

Eosinophils, mast cells, and basophils all have been first diagnosed and defined with the aid of using Paul Ehrlich withinside the past due nineteenth century. Since then, it has end up clean that those 3 cells kinds have an awful lot extra in not unusualplace than their popularity with the aid of using the equal scientist.

Mast cells are multifunctional bone marrow-derived tissue-residing cells which might be the principal manufacturer of histamine withinside the frame. H1R are expressed in lots of cells, along with mast cells, and are concerned in Type 1 hypersensitive reaction reactions.

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Compare and contrast the immune system and nervous systems

Answers

similarities:

The immune system and the nervous system maintain extensive communication, including 'hardwiring' of sympathetic and parasympathetic nerves to lymphoid organs. Neurotransmitters such as acetylcholine, norepinephrine, vasoactive intestinal peptide, substance P and histamine modulate immune activity.

What determines how chromosomes line up during meiosis?

Answers

The spindle fibers will move the chromosomes until they are lined up at the spindle equator. Metaphase: During metaphase, each of the 46 chromosomes line up along the center of the cell at the metaphase plate. Anaphase: During anaphase, the centromere splits, allowing the sister chromatids to separate

since dna is replicated semiconservatively, what does each new daughter cell receive from the parent cell after replication and mitosis?

Answers

Answer:

the exact same organelles from the parent

Explanation:

if blood calcium levels drop below 8.5 mg/dl which hormone is likely to be activated?

Answers

Answer:

Hello!!

If blood calcium levels drop below 8.5 mg/dl... receptors in the parathyroid gland release parathyroid hormone.

Hope this helps!!

What muscle supinates the hand?

Answers

Answer:

Braquirradialis

Explanation:

El músculo supinador, también llamado supinador corto para diferenciarlo del supinador largo (braquirradialis) es un músculo ancho, dispuesto alrededor y sobre la cara lateral del codo y la parte superior del antebrazo. Se extiende desde el epicóndilo lateral y el cúbito hasta el radio.

Nervio: Rama profunda del nervio radial, dura...

Acción: Es supinador (gira el radio de medial a ...

Origen: Epicóndilo lateral del humero y cúbito

Arteria: Arterias recurrentes radiales

what is the effect of water temperature on corals from inshore and offshore reefs?

Answers

Answer:

When the water gets too warm, the algae can no longer live inside corals, so they leave. The corals then turn from green to white, called coral bleaching. Climate change has been causing the Earth's air and oceans to get warmer. With warmer oceans, coral bleaching is becoming more widespread.

Explanation:

When the water temperature rises too high, algae can no longer live inside corals and leave. Coral bleaching occurs when the corals turn from green to white.

What are coral reefs?

A coral reef is an underwater ecosystem characterized by corals that build reefs. Reefs are made up of coral polyp territories hosted along by calcium carbonate.

The vast bulk of coral reefs are mainly composed of stony corals, which have polyps that coalesce together.

Coral reefs grow in shallow water with temperatures ranging from 68° F to 97° F. The Indo-West Pacific biogeographic region contains more than 90% of the world's coral reefs.

When the temperature of the water rises too high, algae can no longer live inside corals and must leave. Coral bleaching occurs when corals alter color from green to white.

The Earth's air and oceans are becoming warmer as a result of climate change. Coral bleaching is becoming more common as the oceans warm.

Thus, this is the effect of water temperature on corals from inshore and offshore reefs.

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who disproved the theory of spontaneous generation

Answers

Louis Pasteur

I hope that was right

What do Pulmonary veins carry?

Answers

Answer:

Pulmonary veins: The veins do the opposite job of pulmonary arteries and collects the oxygenated blood and carry it from the lungs back to the heart. The veins merge into larger veins. Each lung has two pulmonary veins that deliver blood to the heart's top left chamber or atrium.

Explanation:

sana makatulong

How do you remove a filter in Excel?
O Clear Filter
O De-Filter
O Cancel Filter
O Halt Filter

Answers

Answer:

the answer is cancle filter




what’s the correct answer?



bio


Answers

“It is a type of homogeneous mixture.” is false.

Answer:

It is a type of homogenous mixture.

Explanation:

how does the colour of star help to find its age​

Answers

Answer:

As stars age, they run out of hydrogen to burn, decreasing the amount of energy they emit. Thus, younger stars can appear bluer while older ones appear more red, and in this way, a star's color can tell us something about that star's age.

Explanation:

ecosystem with same climate and similar communities

Answers

Answer:

A biome is a group of ecosystems that have the same climate and similar dominant communities

which from of weathering most likely caused the reddish coloring of the rocks

Answers

Answer: Oxidation

Explanation: Hope it helps

What are the roles of the nucleus, cytoplasm, mitochondria, and the cell membrane in eukaryotic cells? in your own words nothing from the internet

Answers

Answer:

What are the roles of the nucleus, cytoplasm, mitochondria, and the cell membrane in eukaryotic cells?

Explanation:

1.The cell membrane holds the cell's internal contents from its environment

2.the nucleus, the cell's "brain", holds the cell's DNA in the form of chromosomes, and makes protein codes that tell the other organelles to function in a certain way once the codes are made into literal proteins and passed around the cell

3.The cytoplasm is the gelly fluid inside the cell. It is the place for chemical reaction, and provides a place where other organelles can operate within the cell properly, and the cytoplasm keeps the cells from moving around.

4. The main job of the mitochondria is to convert nutrients into energy through cellular respiration, making ATP. the mitochondria are known as the powerhouse of the cell.  In addition to supplying energy, the mitochondria is involved in a range of other processes,like signalling, cellular differentiation, cell death, as well as control of the cell division cycle and cell growth.

I do not understand this. It is about "Membrane Transport".

Answers

Osmosis is taking place?

Read the statements. The molecule that gives skin its color is a molecule called melanin. In some people, skin contains no melanin These people have white skin and are called albinos, Which statement explains why some people cannot form the protein that produces melanin?

○Their genes for the production of that protein do not function

○They do not get enough nutrients to build the protein

○ Their cells do not get enough energy to build the protein

○The molecules they produce we used by organs other than the skin​

Answers

Answer:

(b) is your answer of question.

WHAT IS MEDIAN??????????????​

Answers

Answer:

The middle value in a set of numbers arranged in increasing order. If there is an even number of values, then median is the average of the middle two values.

In anatomy (as your question is marked Biology), the median is situated in the middle; central, intermediate.

Complete the blanks in the following paragraph using the appropriate words from the list:

anterior, bilateral, inferior, lateral, medial, posterior, superior

Dominic's friends thought they were really funny when they dropped a water balloon on his head! The water drenched the (1) ___ portion of his head and then ran down the (2) ___ portion of his body, getting the front of his shirt all wet. He and his younger brother decided to get back at his friends by sneaking up on them with their water guns. They tiptoed up behind C.J., soaking his back and the entire (3)___ of his body. Next, they snuck up on Tony. Dominic sprayed down the middle, (4)___ part of Tony's body while his brother sprayed the arms and other (5) ___ portions. Good thing it was a hot day because everyone was soaked by the end of the game!

Answers

Answer:

1 Superior

2 Anterior

3 Posterior

4 Medial

5 Bilateral

List and describe a BEE’s adaptations

Answers

Answer: Bees have a number of specialised adaptations that help them to be great pollinators. Their bodies carry an electrostatic charge that attracts pollen (see photo below). They have special hairs that are arranged to form pollen 'baskets' on their hind legs. These adaptations allow them to carry large amounts of pollen.

Explanation:

The lens of the eye is held in place by the ___

Answers

Answer:

The lens of the eye is held in place by the iris

Explanation:

hope it helps you

Answer:

Ciliary Muscles

Explanation:

The muscles hold the lens in place but they also play an important role in vision. When the muscles relax, they pull on and flatten the lens, allowing the eye to see objects that are far away.

how is anaerobic fermentation similar to aerobic respiration

Answers

Answer:

Anaerobic respiration begins the same way as aerobic respiration and fermentation.

Explanation:

However, instead of ending with glycolysis, as fermentation does, anaerobic respiration creates pyruvate and then continues on the same path as aerobic respiration.

if the two alleles for a particular gene are identical the gene pair is:

Answers

Answer: h o m o z y g o u s

Explanation: I did the test

Which statement best describes the germ theory of disease?
A -Diseases are caused by bad-smelling poisonous vapors that contain decaying matter.
B - Diseases are created or generated spontaneously within the body.
C - Diseases can be isolated and grown in cultures.
D - Diseases are caused by the presence and action of specific microorganisms.

Answers

Answer:

D. Diseases are caused by the presence and action of specific microorganisms.

Explanation:

Which cell structures work together to form a pseudopod?
A. cell wall and nucleus
B. eyespot and chloroplast
C. cytoplasm and plasma membrane
D. contractile vacuole and mitochondria

Answers

cytoplasm and plasma membrane

Pseudopodia are formed by some cells of higher animals (e.g., white blood corpuscles) and by amoebas. During amoeboid feeding, pseudopodia either flow around and engulf prey or trap it in a fine, sticky mesh.

The answer is C. cytoplasm and plasma membrane.

what is the material salad spinner​

Answers

Answer: its made of plastic

Explanation:

Answer:

salad spinners are usually made from plastic

Why did Ibrahim conclude that the dorsal spines were not used to support a hump or to regulate body
temperature?

Answers

Chemical composition of dorsal spines provides information about its function as regulation of body temperature.

The dorsal spines were not used to support a hump or to regulate body  temperature because of the chemical composition of the spines. Ibrahim found that the spines were made up of bones having few blood vessels and were likely wrapped tightly in skin which can't perform the function of thermoregulation in the body.

In order to regulate temperature of the body, more blood vessels are needed and we know that in dorsal spines the structure is bony and less number of blood vessels so we can conclude that chemical composition of dorsal spines provides information about its function as regulation of body temperature.

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action potentials are conducted from the baroreceptors to the brain via which nerve?

Answers

Answer:

Action potentials are conducted from the baroreceptors to the brain via... the vagus nerve.

Explanation:

Hope this helps.

where are the motor proteins that move chromosomes toward the poles of the mitotic spindle located?

Answers

Answer:

They are at or near the ends of the microtubules. I hope this helps you! :D

Microtubules near the cell plate are the motor proteins that move chromosomes toward the poles of the mitotic spindle located.

What are motor protein?

Motor protein are defined as a group of molecules with the ability to travel across the cytoplasm of animal cells. Molecular motors called motor proteins move along the cytoskeletal filaments of the cell by hydrolyzing ATP. They provide a variety of tasks for biological systems, such as facilitating intracellular trafficking along biopolymer filament tracks and regulating filament sliding during muscle contraction.

Microtubules are defined as the cytoskeleton is made up of tubular-structured polymers, which are present throughout the cytoplasm. Microtubules play a variety of roles in dividing cells, including the construction of the mitotic spindle and axon extension in neurons.

Thus, microtubules near the cell plate are the motor proteins that move chromosomes toward the poles of the mitotic spindle located.

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Look at structure A Use the drop downs to answer the questions about this structure What is the name of this part of the flower What is the function of this part of the fower? A​

Answers

Answer:

What is the name of this part of the flower?

✔ sepal

What is the function of this part of the flower?

✔ to enclose the flower bud

Answer:the person above me is right.

Explanation:

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