What are 2 characteristics of the plasma membrane?

Answers

Answer 1

Answer:

they have flexibility and they help transport materials in and out of a cell


Related Questions

Disease or disorder that affects the nervous systems

Answers

Answer:

There are many diseases/disorders that affect the nervous system, but here are a few:

Alzheimer's disease

Parkinson's disease

Epilepsy

Stroke

Explanation:

Alzheimer's disease: Alzheimer's disease is a progressive disease (gets worse and worse overtime) that destroys your memory. When a person has Alzheimer's disease, their neurons (nerve cells) get damaged and eventually die all throughout the brain. Some problems people with this disease can experience are: getting lost easily, personality/behavior changes, memory loss (obviously), and need help with self-care and daily things.

Parkinson's disease: Parkinson's disease is a progressive disorder that affects one's movement. Because the nerve cells are damaged, the dopamine (type of neurotransmitter) levels decrease. Since dopamine can control your body movement, it makes it hard to balance, and you're usually stiff. It usually begins with a tremor in your hand.

Epilepsy: Epilepsy is a neurological disorder where neuron activity in the brain gets disturbed, resulting in a seizure. Epilepsy is usually genetic or gained through a trauma or stroke (brain injuries). During these seizures, people often lose consciousness. Most epileptic people are sensitive to lights (flashing and flickering especially).

Stroke: A stroke occurs when your blood supply to your brain is interrupted/stopped. This is a SERIOUS emergency. Cells can die from lack of blood and the resulting lack of oxygen. Most warning signs of a stroke include: numbness + weakness, trouble speaking, loss of balance, and dizziness.

Which one of the following statements is correct regarding rods and cones in the human eye? . *
a. Cones are sensitive to dim light.
b. Cones are sensitive to bright light.
c. Rods are sensitive to bright light.
d. Rods can sense colour.

Answers

Answer:

Rods are sensative to bright light

Explanation:

Rodes are important for being able to see darkness, while Cones are importnat for seeing colors.

B is the right answer I think


Look at the image.

Answers

Answer:

it is the bodies first line of defense

Explanation:

does the moon make it's own light? explain how the moon gives us light at night?​

Answers

Answer:

The moon doesn't produce its own light. Moonlight is actually sunlight that shines on the moon and bounces off. In other words, its surface reflects light from the sun.The perceived brightness of the moon from Earth depends on where the moon is in its orbit around the planet.

Explanation:

the sun illuminates the moon

During cellular respiration, every living thing uses ______ and releases ______ back into the environment.

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Answer:

oxygen and carbon dioxide

Explanation:

what do Physical scientist explore?

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Answer:

A physical scientist works mainly in a laboratory (although fieldwork may be possible), conducts experiments or makes observations, analyzes findings, operates necessary equipment, and develops and tests theories.

Explanation:

Hope This Helps!

Answer:

They explore physical things like venturing out in nature to see the size, shape, and where it goes in the ecosystem.

Explanation:

Which coast of North America would you expect you to have a cooler overall climate

Answers

Answer:

east coast

Explanation:

During the winter, land is much colder than the oceans. When the westerly winds blow over it, the air cools substantially. By the time it reaches the East Coast, the moist air is cold enough to convert into snow. Thus, the East Coast experiences extreme cold weather during the winter.

Answer:

East Coast

Explanation:

1) What percentage of oxygen and carbondioxide inhaled and Exhaled Air ? ..​

Answers

Answer:

21% of oxygen and 0.04% of carbon dioxide inhaled; 16.4% of oxygen and 4.4% of carbon dioxide, exhaled

Explanation:

The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide, while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide.

why do forensic labs analyze non-coding dna and not genes

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Answer:

Why do you think forensic labs analyze non-coding DNA and not genes (i.e. sequences coding for hereditary characteristics)? Because non coding DNA are the polymorphic sequences that differ in different humans. ... The sample of DNA obtained at a crime scene and the suspect's DNA samples contain the target sequence.

Explanation:



Why does water have a strong surface tension and why is this important?

Answers

Why does water have strong surface tension?

The stronger the cohesive force, the stronger the surface tension. The water molecule has two hydrogen atoms bond to an oxygen atom through covalent bonding. ... Formed bonds are called hydrogen bonds which lead to strong cohesive forces between the water molecules and high surface tension of water.

Why is it important?

The surface tension of water provides the necessary wall tension for the formation of bubbles with water. The tendency to minimize that wall tension pulls the bubbles into spherical shapes. Surface tension and droplets: Surface tension is responsible for the shape of liquid droplets.

The tails of the cell membrane are ____________ while the phosphate heads are ___________.



Hydrophilic, Hydrophobic


Hydrophobic, Hydrophilic


Flexible, Hydrophobic


Water Loving, Flexible

Answers

Answer:  Hydrophobic, Hydrophilic (Option 2)

Explanation:

The tails of the cell membrane are __hydrophobic__ while the phosphate heads are __hydrophilic__.

I hope the following image helps to further explain the answer.

The tails of the cell membrane are hydrophobic while the phosphate heads are hydrophilic. The correct option is B.

What is the structure of cell membrane?

The phospholipid bilayer, which forms a stable barrier between two aqueous compartments, is the membrane's fundamental structure. These compartments are the inside and outside of the cell in the case of the plasma membrane.

The cell membrane, also known as the plasma membrane, is found in all cells and serves to separate the cell's interior from the outside environment.

The membrane of the cell is composed of a semipermeable lipid bilayer. The cell membrane controls the transport of materials into and out of the cell.

The heads (phosphate) are polar, whereas the tails (lipid) are non-polar. The heads, which form the outer as well as inner linings, seem to be "hydrophilic" (love water), whereas the tails, which face the cell membrane's interior, are "hydrophobic" (water fearing).

Thus, the correct option is B.

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Which biome do you think had the most biodiversity? Why?

Answers

Answer:

Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes.

Explanation:

study hard

Which property do solutions with low pH values have?

Answers

Answer:

b) Tastes sour

Explanation:

if a cell lacked ribosomes, it would not be able to

Answers

Answer:

build or break down proteins

hope this helps :)

How do cells
Aquire the materials.
and
energy
necessssary
to
sustain cire?

Answers

Answer: they take nutrients from food

Explanation:

Cells get energy by taking in nutrients from food. Cells get energy only by taking in oxygen from the atmosphere.

Hydrogen pumps move hydrogen ions into which structure?
O A. The thylakoid
O B. The mitochondrion
O C. The cytosol
D. The stroma

Answers

Answer:

a

Explanation:

i

how does lipases contribute to homeostasis

Answers

Answer:

The presence of the cholesterol and short lipid tails keeps the cell membrane fluid, allowing the passage of necessary materials across its layer. This one major mechanism helps the cell with the maintenance of homeostasis.

Explanation:

does the moon make it's own light? explain how the moon gives us light at night?​

Answers

Answer:

The moon does not make it's own light

Explanation:

The light from the sun reflects off of the moon, which makes it look like it is glowing. That is how the moon gives us light at night.

Compare and contrast the skeletal body system with immune system

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Abstract

In the last two decades, numerous researchers have focused on elucidating the relationship between the skeletal and immune systems with respect to their regulatory mechanisms. It has now become clear that osteoclasts are derived from the same myeloid precursor cells that can differentiate into macrophages and myeloid dendritic cells. In addition, bone and immune cells coexist in the common microenvironment of the bone marrow and are thus influenced by similar mediators. Discovery of a common regulatory mechanism via the receptor activator of nuclear factor kappa-B ligand (RANKL)–receptor activator of NF-κB (RANK)–osteoprotegerin (OPG) axis in both the bone and immune system has not only increased understanding of the fundamental processes of bone homeostasis but has further crystalized understanding of the definitive regulatory correlation between bone and immunity. Moreover, many of the soluble mediators produced by immune cells, including cytokines, chemokines, and growth factors, regulate the activities of osteoclasts and osteoblasts. This increased recognition of the complex interactions between the immune system and bone has led to the development of the interdisciplinary field of osteoimmunology. In this review, we summarize the characteristics of bone cells and the soluble mediators responsible for crosstalk between the skeletal and immune systems. A more complete appreciation of the interactions between immune and bone cells should lead to better therapeutic strategies for diseases that affect either or both systems.

The wood used for making paper is mostly made of

Answers

Answer:

Wood consists primarily of cellulose (mostly from fibers which give strength and support to the tree) and lignin, which cements the fibers together. Cellulose makes up roughly 65 to 80 percent, and lignin about 20 to 35 percent of the weight of wood.

Explanation:

Hope this helps...

which of the following statements is most likely to be true in the case of the feedback-regulated

Answers

Answer:

Where is the statements because you didn't write it.

If the black horse is homeozygous, what is its genotype?

Answers

Answer:

the genotype is BB.  

Explanation:

Some predators hide in plain sight before ambushing their prey by virtue of their ____________________.

Answers

Answer:

Some predators hide in plain sight before ambushing their prey by virtue of their  Physical adaptations to their environment_.

Explanation:

it allows them to sneak up on their prey and get them before they can react

(aka: camouflage)

Students created note cards comparing characteristics of eukaryotic and prokaryotic cells.

Which set of note cards most accurately compares these cells?

Answers

Given what we know about Eukaryotic and Prokaryotic cells, we can confirm that the note card labeled "F" is the one that best compares these two cell types.

Eukaryotic and Prokaryotic cells have many differences to discuss, the ones mentioned in note cards, however, are:

The presence of membranes surrounding organelleThe location of the DNA for each cell

Prokaryotic cells are cells that lack any organelle or nucleus. This is due to the absence of membranes, which are needed to maintain the structure of the organelle. Due to the lack of membranes and therefore of a nucleus, the DNA of these cells can be found floating in the cytoplasm. Table F is the only one that accurately represents these traits.

Eukaryotic cells, on the other hand, are those that do possess membranes. The presence of membranes allows the eukaryotic cells to have a nucleus that can contain their DNA. This cell type is that of most multicellular organisms, whist the prokaryotic are known most commonly as bacteria. Once again, table F is the one that best represents this data.

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what 4 substances are recycled during photosynthesis and respiration?

Answers

Answer:

Carbon dioxide, Water, Oxygen and Glucose.

HELP PLS

You are looking at a star through a telescope in January. There is a small shift in the star’s apparent position compared to when you looked at the same star through a telescope in July. What can you conclude about the distance of the star from Earth?

Answers

Answer:

the earth moved its position around the sun

A human has 46 chromosomes in each body cell. How many chromosomes would be found in its daughter cells after mitosis

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Answer:

Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II. At the end of meiosis I there are two haploid cells.

what is excretion meaning

Answers

Definition of Excretion

Excretion is a process in which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys, and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. Excretion is an essential process in all forms of life. 

In simple terms, the process of eliminating or expelling waste matter.

hope this helps have a great day and please do tag me brainliest if you are satisfied with the answer

Excretion is a process in which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys, and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. Excretion is an essential process in all forms of life.

What is the goal of using renewable energy sources?

Answers

Answer:

to reduce or to minimize waste

to improve life style or to be modest county like USA unlike Africa

What are 4 facts about Earth's outer layer? Subject: Science 7th grade Plate motion.

Answers

The center of the earth is made up of two layers outer core and the inner core

The outer core is the third layer of earth It is mainly made up of the metals iron and nickel

The outer core is responsible for earths magnetic fields

The magnetic field protect the earth from harmful particles that come from the sun
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