Intracellular transport, changes in cell shape, cell motility and animal locomotion depend on the microtubules, microfilaments, motor proteins and their accessory proteins. You should be able to explain how each of these four movement functionsabove are achieved by microtubules and microfilaments. Make sure you understand the role of the different motor proteins involved that are specific to microtubule movement vs. microfilament movement. Microtubules and microfilaments also have important roles in the cytoskeleton.

Answers

Answer 1

Answer:

Intracellular transport is taking place with the help of microfilaments and microtubules. The plays the role of a highway for motor proteins such as dynein, kinesin, and myosin, which acts as the car of this highway that helps in transport.

Motor proteins help in changing the ATP to ADP by binding to it and attach or detach to the other parts of the cytoskeleton for transporting the vesicles as these proteins move.

Kinesin and dynein both are microtubule motor proteins. Kinesin transports full vesicles away from the nucleus, Dynein transports empty vesicles back towards the nucleus and myosin is a microfilament motor protein that transports both vesicles along microfilament.


Related Questions

Se efectúa un experimento en el que a la planta 1 se le suministra CO2 normal pero agua que contiene átomos de oxígeno radiactivos. A la planta 2 se le suministra agua normal pero CO2 que contiene átomos radiactivos de oxígeno. Se permite que ambas plantas efectúen fotosíntesis y se mide la radiactividad del oxígeno gaseoso y los azúcares producidos. Qué planta esperarías que produzca azúcares radiactivos y cuál oxígeno radiactivo, por qué?

Answers

Answer:

The Oxygen liberated in photosynthesis comes from photolysis of water.

The CHO formed from Calvin Cycle during photosynthesis comes from reduction of CO2 with H+ of photolysis of water.

Therefore,since Plant 1 contains labeled Oxygen(from water) it will give radioactive Oxygen as the byproduct of its photosynthesis. It CHO is normal.

However,Plant 2, will contain radioactive CHO,because its radioactive CO2 will be reduced by H+  from photolysis of water to form radioactive labeled  carbohydrate(CHO)

Explanation:

I am a dragon ball fan, but I NEED HELP ON BIOLOGY!!!! Look at attachment! Please help! Thanks! :)))

Answers

Answer:

DNA replication

Explanation:

DNA replication is where the cell takes a piece of DNA and replicates it(self-explanatory)

DNA replication  -hope this helped

crees que la esclavitud atenta contra la diversidad cultural y el multiculturalismo

Answers

Answer:

Sí, creo que la esclavitud amenaza la diversidad cultural y el multiculturalismo porque la esclavitud proviene de la opresión y la pérdida de la identidad. También implica verse obligado a abrazar otras ideologías mientras relega a un segundo plano las propias creencias personales, lo que resulta en una falta de multiculturalismo.

Explanation:

La esclavitud es la inhumanidad del hombre hacia el hombre. Despoja al esclavo de su sentido de existencia y sistema de creencias. Esta opresión, que a menudo es física, mental y psicológica, hace que el individuo pierda autoestima e identidad. En un entorno que debería promover la diversidad cultural cuando conviven personas de diversas razas y culturas, existe una conformación a una forma de vida que dificulta el desarrollo del multiculturalismo. Aunque esto puede ser resistido inicialmente, las horas extra de estos descendientes pierden su identidad.

Which phrase best describes a scientist?

Answers

Explanation:

A process that includes the different ways that scientists find out about the natural world and try to explain what they have observed.

Answer:

:They are helpers of the world  who find out about the natural world and try to explain what they have observed.

Explanation:

Cactus spines are modified
· branches
· leaves
· stems

Answers

Answer:

Leaves

Explanation:

The spines of a cactus help prevent water loss by reducing air flow close to the cactus and providing some shade, while also deterring most animals that would make a meal of the cactus.

13.
Which is not a product of photosynthesis?

water
oxygen
glucose
nitrogen

Answers

Answer:

nitrogen

Explanation:

Plants use photosynthesis by taking in water and carbon dioxide and releasing oxygen while consuming food (glucose) for itself. Therefore, your answer is nitrogen. No nitrogen is created during this process

Answer:

Nitrogen

Explanation:

Photosynthesis is a process used by autotrophs and producers, like plants, algae, and some bacteria. In this process, water, carbon dioxide and light energy from the sun are turned into glucose and oxygen. The glucose becomes food for the organism, and the oxygen becomes the waste product.

There is no nitrogen involved in photosynthesis. It is not created, and therefore is not a product. The best answer choice is nitrogen

Which of these statements did Louis Pasteur confirm with his broth
experiments?
A. The theory of spontaneous generation is false.
B. All living organisms consist of units called cells.
O C. The cell theory needed to be changed.
OD. New cells can be formed by spontaneous generation.

Answers

awnser is d hope this helps

_________8. Which of the following is probably evolved first?
A. The kreb’s cycle C. Oxidation of pyruvate
B. Electron transport chain D. Glycolysis

Answers

Answer:

I think D) Glycolysis

Explanation:

Glycolysis is the first pathway used in the breakdown of glucose to extract energy. It takes place in the cytoplasm of both prokaryotic and eukaryotic cells. It was probably one of the earliest metabolic pathways to evolve since it is used by nearly all of the organisms on earth.

Select all that apply. Plant organs include: ° chloroplasts ° roots ° mitochondria ° stems ° leaves

Answers

Answer:

leaves,stems,roots

Explanation:

Answer: leaves stems roots

Explanation:

which choice describes the flow of energy in a food chain?

a. grass - rabbit - wolf - sun
b. wolf - sun- grass- rabbit
c. sun- grass-rabbit-wolf
d. rabbit - wolf -sun - grass

Answers

Answer:

C.

Explanation:

c. sun- grass-rabbit-wolf

Answer:

C

Explanation:

sun- grass-rabbit-wolf

Sun makes grass grow, rabbits eat grass, and finally wolves eat rabbits.

Which best describes fossil record

Answers

Answer:

The fossil record provides evidence of a common ancestor to many species. A fossil record provides the confirmation of the typical progenitor and its numerous species. A fossil is known as the remaining parts of a certain living life.

How do you test for carbohydrates, proteins, and lipids?

Answers

Answer:

benedicts solution

Explanation:

hope this helps

it will change colour

Hi there!

Explanation:

For carbohydrates,you add an iodine solution to it.If it contains starch,it will turn a blue+black colour.

For proteins,you add a bierut solution to the protein mixture you are testing.If it turns purple or has purple in between layers it has protein.

For lipids,you add a Sudan III solution to the mixture of lipids and shake the test tube.A red layer forms on top and shows fats and oils are present.

Hope this helps!

What is the definition of self-definition?

Answers

Answer:

Self definition is being able to know who you are and what your purpose is in life. An example of self definition is when you know you are a strong, capable, confident teacher and husband.

Answer:

self-definition- a person's essential being that distinguishes them from others, especially considered as the object of introspection or reflexive action.

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Which scenario is an example of a functional adaptation?

Answers

=>functional adaption is an adaption that helps an organism survive. So, the color and shape of a flounder allows it to camouflage itself among the sea floor to hide itself from predators. Flounders ability to camouflage protects them, so they can

survive. The correct answer is D. The color and shape of a flounder allows it to camouflage itself on the sea floor.

How does a hormone like ADH only know to have an effect on the cells of the kidney and nowhere else?

Answers

Answer:

Vasopressin or antidiuretic hormone (ADH) or arginine vasopressin (AVP) is a nonapeptide synthesized in the hypothalamus. Science has known it to play essential roles in the control of the body’s osmotic balance, blood pressure regulation, sodium homeostasis, and kidney functioning. Given its vital role in multiple functions, it is no surprise that ADH is of great clinical significance. ADH primarily affects the ability of the kidney to reabsorb water; when present, ADH induces expression of water transport proteins in the late distal tubule and collecting duct to increase water reabsorption. Several disease states arise when the body loses control of ADH secretion or responds to its presence.

Explanation:

Increase in tension by increasing the number of motor units that are stimulated is called _________. Increase in tension by increasing the number of motor units that are stimulated is called _________. muscle tone autorhythmicity hypertonia recruitment

Answers

Answer: Recruitment

Explanation:

A motor unit is made up of a motor neurone and all the muscle fibre it supplies nerve to.

Within a muscle, the muscle fibers are functionally organized as MOTOR UNITS within a muscle.

MOTOR RECRUITMENT causes an increase in muscle tension which occurs when there is an increased number of stimulated motor units.

During a muscle contraction, the weakest motor units are recruited to contract first,The more weight (resistance) you add to a muscle, the more motor units you will need to recruit in order to generate movement.Recruitment stops as soon as movement starts, result is a smooth, even muscle contraction. I hope this helps, thanks.

Which does a reference point provide?
a position from which to measure future distance
a set of standard units for measuring displacement
a standard method for evaluating variables
a method for determining the speed of an object

Answers

Answer:

A position from which to measure future distance a way to detect an object motion.

A reference point provides a position from which to measure future distance.

A reference point is a location or point in space that serves as a criterion that is used to determine an object in motion. When an object moves in relation to a reference point, it is said to be in motion.

Therefore, we can conclude that a reference point is also used to determine a position from which we can draw a line to measure a future distance.

Learn more about reference points here:

https://brainly.com/question/2037494

How are viruswa different from bacteria ?
Answer: a .viruses are not alive .

Answers

Answer:

Viruses are tinier than bacteria. In fact, the largest virus is smaller than the smallest bacterium. All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't survive without a host.

So life itself is an emergent, complex state, but it is made from the same fundamental, physical building blocks that constitute a virus. Approached from this perspective, viruses, though not fully alive, may be thought of as being more than inert matter: they verge on life.

Explanation:

Oxygen-rich blood is transported from the lungs by the _____.
pulmonary vein
pulmonary artery
trachea
bronchi


HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: FROM THE PULMONARY VEIN

Explanation: oxygen poor blood from the right ventricle into the lungs, where the oxygen enters  the bloodstream. The pulmonary veins bring oxygen rich blood to the left atrium.

New triglycerides (fatty molecules) are constantly synthesized and stored and others are

hydrolyzed and released into circulation mostly from cells in

a. blood

b. fibrous connective tissue.

c. adipose tissue.

d. reticular tissue.

e. transitional tissue.

Answers

Answer: Option C.

Adipose tissues.

Explanation:

New glycerides are can either go to the liver once or circulation or stored in adipose tissue.

Adipose tissues are connective cells that consist of adipocytes or fat cells which store energy inform of fat and also release it into circulation. It serves as insulation to the body.

Adipose tissue stores fat gotten from food and from liver metabolism. They store fat as energy source and under energy stress, they release it into circulation.

Miles wants to write the equation for photosynthesis. The diagram below represents one of the molecules in the equation,
H
H-C-0-H
C-
0
H-O
0-H
H
0-H
H
0-H
Which chemical formula reflects the diagram?
6012H6C
6C12H60
Mark this and turn
Save and Exit
Next
Submit

Answers

Answer:

The options to this question are incomplete, the complete options are:

A) 6O12H6C

B) 6C12H6O

C) O6H12C6

D) C6H12O6

The correct answer is D) C6H12O6

Explanation:

According to the question, Miles is trying to write down the chemical equation for Photosynthesis. Photosynthesis is a chemical reaction that cells of autotrophic organisms undergo in the presence of sunlight to produce their food. Photosynthesis, which occurs in the Chloroplast, involves the chemical reaction between Carbondioxide (CO2) and water (H2O) to produce a sugar called glucose (C6H12O6) and oxygen gas (O2).

The food is synthesized as glucose, which is a monosaccharide (simple carbohydrate) that cells absorb in order to synthesize energy (ATP).

The overall equation of photosynthesis is as follows:

C02 + H2O ---light---> C6H12O6 + 6O2

The diagram in the question, although incomplete, depicts the sugar (glucose) component of the equation. The correct chemical formula for this sugar is written as: C6H12O6

What were the Himalayan Mountains formed by?

The gravity of the Sun pulling on Earth's crust
Erosion over time
A meteor hitting Asia
The movement of Earth's crust

Answers

Answer: The movement of the Earth's crust

Explanation:

The movement of the earth's crust is responsible for the formation of the Himalayas. The Himalayas ranges and the Tibetan plateau is formed by the result of the collision between the Indian plate and the Eurasian plate which started 50 million years ago.

This leads to the movement of the earth's crust which aimed to the formation of the mountains.

The movement of the plates lead to the movement of the earth's crust which lead to the formation of Himalayan mountain.

help asap please!?
1.In binomial nomenclature of organisms, every species name includes two words. The first word is the name of the _______.
2.A monophyletic group or clade consists of a single _______ and all of its descendants.

3.Cladograms sometimes indicate _______, or shared characteristics. All species have that characteristic from the indicated point forward.


4.What's our system of naming organisms called, and what are the two most specific categories of organization?

5.If a scientist is studying the evolutionary relationship between two species of birds, what tool could she use to help her chart their relationship?

6.How is one clade differentiated from another clade?

7.Which type of character provides useful data for cladistic analysis?

8.What technological development allowed for a more detailed understanding of the relationship between species?

Answers

Answer:

1) genus

2) organism

3) clade

4) the system of naming organism is called binominal nomenclature while the two most specific categories of organization is genus and species the genus is the first and species is the second

5) the tool used to help her chat their relationship is a phylogeny

6) A clade is a grouping that includes a common ancestor and all the descendants (living and extinct) of that ancestor. Using a phylogeny, it is easy to tell if a group of lineages forms a clade.

Explanation:

Answer:

1. Genus

2. Common ancestor

3. Synapomorphies

4. The system is called binomial nomenclature, and the specific categories used are genus and species.

5. The scientist could use a phylogenetic tree to help visualize the evolutionary relationship.

6. One clade is differentiated from another clade by a branching point within the phylogenetic tree that's defined by some character or characters.

7. Since cladistics depict an evolutionary relationship between organisms, the traits that are studied and categorized are homologous traits.

8. DNA sequencing is the technological development that allowed scientists to gain a more complete understanding of the relationships between species.

Given an isolated desert city with little wind and long dry days, throughout the year, what would you consider before recommending an alternative energy source? What alternative energy source would you recommend?Explain your answer.

Answers

Answer:

The little wind and long dry days throughout the year is a characteristic feature of Arid habitats. Definitely, there will be abundant sunlight, with rainfall. Consequently, the alternative source of energy is Solar energy.(photovoltaic) Wind energy would  have been used if the wind were strong and much, But with little wind, this is not an option.

Therefore ,confirming the use of solar  as source of energy

Explanation:

To determine whether regulation of gene expression by short RNAs was a naturally occurring phenomenon, researchers isolated RNA from a cell and fractionated them by size to obtain only short RNAs. The next step was to clone these molecules.
Today the cloning step would not be required. Which of the techniques below is the best reason why?
A. Because a microarray could tell if the fragments were encoded by the genome.
B. Because a PCR reaction could tell if the fragments were encoded by the genome.
C. Because an RNA-seq reaction could tell if the fragments were encoded by the genome.
D. Because a yeast 2 hybrid could tell if the fragments were encoded by the genome.
E. Because a GFP fusion could tell if the fragments were encoded by the genome.

Answers

Answer:

C. Because an RNA-seq reaction could tell if the fragments were encoded by the genome.

Explanation:

The combination of single-cell RNA sequencing (RNA-Seq) and bioinformatic tools to assemble and annotate sequence reads is currently the most common methodology used to obtain complete transcriptomes from individual cells. RNA-seq is a Next-Generation Sequencing (NGS) technology that enables the analysis of the entire transcriptome, thereby this method can be used to examine gene, allelic and ncRNA expression. In the last years, RNA-seq has become the gold standard technique for direct analysis of ncRNA expression profiles in biological samples and clinical research.

Decide if the following sentences are true or false. You have to correct the false ones.
a) There are four kinds of coal depending on their carbon content.
b) Coal is usually found in liquid state.
c) Fossil fuels are the result of the descomposition of plants and animals from the past.
d) Petroleum is the cheapest source of energy.

Answers

Answer:

b) is false      coal is usually found in solid state.

Explanation:

I think the answer is A

Explain what would happen if the heart had no intercalated discs

Answers

Answer:

Explanation:

if intercalated discs are not present in the cardiac muscles then they might not contract properly and thus blood would not be pumped efficiently to other organs

The dawn of the realization that biology was about information storage coincided with the

dawn of information-based computers. In 1943, Erwin Schrödinger was the first scientist to

suggest genes contain a code, just as a computer program is based on numerical code. Still

so few scientists believed DNA was the molecule encoding for hereditary information. Why?

Answers

Answer:

Scientists believed DNA was the molecule encoding for hereditary information due to the presence of makeup material inside in it.

Explanation:

The Hershey–Chase experiments which was conducted in 1952 indicate that DNA contains genetic material which has all the information about the makeup of living organism. DNA molecule has all information of making proteins and produces proteins which are necessary for the normal functioning of body of living organism. DNA molecule is just like a recipe book which contains all information of making protein.

What are long term effects of global warming?

Answers

Answer:

Extreme warm weather, glacial melting, rising sea levels, Ocean Acidification,Animal Migration and Extinction of Species, The Increase of Health Issues and Costs.

Long term effects of global warming is glaciers melting , rising sea levels , extreme hot weather , etc. hope this helps you a little bit.

Question 14
2 pts
Which of the following reactions in a cell would result in a release of energy?
O Both B & D would result in a release of energy.
O B. The enzyme sucrase breaking down sucrose into fructose and glucose.
O A. Enzymes facilitating the bonding of amino acids together to form a polypeptide
O D. The breakdown of glucose in cellular respiration.
O C. The enzyme ATP synthase facilitating the bonding of the third phosphate group to ADP, resulting in
the formation of ATP.

Answers

Answer:

Both B & D would result in a release of energy.

Explanation:

hope it helps .

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