Tropomyosin is a rod-shaped protein with a mass of 70 kDa and a sedimentation coefficient of 2.6S. Hemoglobin is a spherical protein with a slightly smaller mass of 65 kDa, but a much higher sedimentation coefficient of 4.31S. Which property of tropomyosin accounts for its slow sedimentation?


a. high particle density
b. elongated shape
c. high mass
d. low partial specific volume
e. overall net charge

Covalent bonds are formed between non-metals or elements whose electronegativity values are close to each other.

Covalent bonds are bonds which are formed by the sharing of electrons between two or more atoms.

Covalent bonds can either be:

Covalent bonds are formed between non-metals or elements whose electronegativity values are close to each other.

In conclusion, covalent bonds are formed by electron sharing.

Learn more about covalent bonds at: https://brainly.com/question/3447218

#SPJ1

Answer:

A host is required so that the virus is able to reproduce.

Explanation:

Unlike bacteria, viruses cannot survive without a host. They primarily survive while attaching itself onto a host's cell. So therefore, in order for meiosis to occur within a virus, it needs a host first. In addition, viruses don't need another virus because viruses are prokaryotic cells.

Answer:

False

answer is FALSE. Metals are usually good conductors, while nonmetals are not usually good conductors.

Explanation:

hope it helps

Rudolf Virchow impact on the cell theory is that It added to our understanding of cells, completing the claims in cell theory.

The correct answer choice is option d

It happens that Virchow proposed that " all cells comes from pre-existing cells ". This implies that a living cells can only come into existence only from a previously existing cells. This infact, gave more insight on cellular pathology. This works of Rudolf Virchow added more light to the understanding of cellular structures and functions.

Other cellular theories includes:

The study of cell is known as cytology.

The scientist who is regarded as the father of cell is Robert Hooke.

In conclusion, the contribution of Rudolf Von Virchow gave us more understanding about the fundamentals of cells.

Read more on cell theory:

https://brainly.com/question/3142190

#SPJ1

Answer:

Double fertilization

Explanation:

The phenomenon of double fertilization is unique to flowering plants (i.e., angiosperms). Each pollen grain produces two male gametes (sperm cells), one of which fertilizes the egg to form the zygote, whereas the other sperm fuses with polar nuclei in the female gametophyte in order to form a triploid cell (3n) called endosperm. Subsequently, this endosperm will support embryonic growth by supplying storage nutrients and by serving as a mechanical barrier during seed development and germination.

Answer:

What's the question? Its not written here

Answer:

Where is the question?

Explanation:

according to the quantity of grasshopper eggs, grasshopper populations Predators such as birds and spiders can typically reduce grasshopper populations if the spring egg production is modest.

Predators like birds and spiders can typically keep grasshopper populations in check if egg quantities are low in the spring. However, when eggs are very plentiful in the spring, more grasshoppers hatch and predators are unable to manage the populations, which can indicate serious issues for rangeland ecosystems. The immature grasshoppers might actually compete for the rarer, highly nutritious food plants if there are a lot of grasshoppers around, starving to death before they can mature and harm the range. Insect eaters, purple martins consume a lot of them every day. All kinds of flying insects, such as beetles, winged ants, flies, dragonflies, grasshoppers, crickets, moths, wasps, bees, cicadas, termites, and mayflies, are preferred food items.

To learn more about grasshopper Please click on the given link:

https://brainly.com/question/25941927

#SPJ4

Answer: When the elements are arranged they are organized by the same number of valence electrons.

Explanation: Certain groups share certain properties.

4. Mediators induce systemic acute syndrome D) All of the above.

5.  The best definition of inflammation D) Local reaction of the tissues to an injury.

6. The ultimate purpose of the inflammatory response is to: C) Localize, destroy, neutralize, and remove injurious agents in preparation for the process of healing.

7. The reactions occurs in an acute inflammatory response B) Arterioles in the area dilate to produce active congestion.

Locally released mediators, cytokines, and prostaglandins can all contribute to the systemic acute syndrome that can occur during inflammation.

5. Inflammation is a local response of the body's tissues to injury, infection, or other sources of irritation.

6.  The ultimate purpose of the inflammatory response is to eliminate or contain injurious agents and initiate the healing process.

7.  During the acute inflammatory response, arterioles in the affected area dilate, which increases blood flow and produces active congestion. This leads to the characteristic redness and warmth associated with inflammation.

Read more on systemic acute syndromehere https://brainly.com/question/30532379

#SPJ1

The phenotypic ratio in the F2 generation should be closest to the are d. 1 brown, thin: 2 red, thin: 1 red, heavy.

The alleles for eye shadeation and for frame shadeation are at the X chromosome of Drosophila, however now no longer at the Y.

Red eye shadeation (w+) is dominant to white eye shadeation (w), and tan frame shadeation (y+ ) is dominant to yellow frame shadeation (yDrosophila melanogaster has pink eyes. Scientists had been curious approximately the biosynthesis of the pink eye pigments and feature finished some of investigations on those compounds. Scientific contributions made during the last 50 years have stepped forward our know-how of the pink eye pigments.

Read more about allele;

https://brainly.com/question/12814522

#SPJ4

A slight depolarization (increase in positivity) occurs at the top of the axon from the drifting. If strong enough, this will cause sodium ion channels to open.

The influx of sodium ions causes the membrane to further depolarize. As this occurs, this will trigger the potassium ion channels to open, and potassium will flow out of the cell. At the peak of the action potential, the calcium ion channels open.

As potassium ions continue to leave the cell, the cell become hyperpolarized (more negative) and the cell enters what we refer to as a repolarization period. The membrane potential slowly returns to its resting potential, which is more negative compared to the outside of the cell.

Learn more about depolarization:

https://brainly.com/question/26502153

#SPJ4

The DNA polymerase will build the complementary strand with the code: ATGCCGTATACGTTTACCGCTCGGATATA.

DNA replication is a process by which a DNA molecule makes a copy of itself. During DNA replication, an enzyme called DNA polymerase reads the existing DNA strand and builds a new complementary strand by matching up the appropriate nucleotides.

To build the complementary strand of DNA, we need to use the base pairing rules: adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G).

So, for each base in the original sequence, we will pair it with its complement:

Learn more about DNA Replication here: https://brainly.com/question/21265857

#SPJ1

The complementary strand to the given sequence would be:

ATGCCGTATACGTTTACCGCTCGGATATAA

A gene sequence is a specific sequence of nucleotides in DNA (or RNA) that encodes the genetic information for a particular trait, function or protein. Genes are the basic unit of heredity and are responsible for passing on traits from one generation to the next.

The complementary strand of DNA will have a sequence that pairs each nucleotide with its complementary base: adenine (A) with thymine (T), and cytosine (C) with guanine (G). Therefore, the complementary strand to the given sequence would be:

ATGCCGTATACGTTTACCGCTCGGATATAA

During DNA replication, DNA polymerase reads the existing strand from 3' to 5' and builds the complementary strand in the 5' to 3' direction. Therefore, the new strand would be synthesized by adding nucleotides in the following order:

ATA...CGT...TAA...CGC...TGG...ATA

Learn about complementary strand here https://brainly.com/question/1534778

#SPJ1

Answer:

The first option would be the best.

Explanation:

The oceans heat up first before the atmosphere does.

Answer: B. Have a nice day ;)

Answer:

The answer is either going to be B or E, I'm more positive its B

Answer:

Ok.................

Answer:

D. Autoclaving

B. Homo sapiens

D. Monera

B. Angiosperm

A. Genus

D. Plasmodium

A. Kingdom fungi

D. none

D. Scavengers.

Explanation:

Explanations are ordered from answers (coordinated)

18. The question asks which of the given options is not a chemical approach to control microorganisms. Antibiotics, disinfectants, and antiseptics are all chemical approaches that can be used to control microorganisms, while autoclaving is a physical method that uses high pressure and high temperature to sterilize materials.

The scientific name for modern man, or Homo sapiens, is option B.

Prokaryotic organisms, which lack a membrane-bound nucleus and other complex cell structures, are placed in the kingdom Monera. The other options given, Fungi, Protista, and Plantae, are all eukaryotic kingdoms.

Angiosperms are plants that have true roots, leaves, stem, and seeds inside a fruit. Gymnosperms, ferns, and mosses are other types of plants with different characteristics.

Taxonomic groups are organized hierarchically, with closely related organisms grouped together at lower levels and more distantly related organisms grouped at higher levels. The options given, genus, order, class, and phylum, are all taxonomic ranks, but genus is the level that contains closely related organisms.

Plasmodium is a single-celled parasitic protozoan that causes malaria. Paramecium is a different type of single-celled organism, while Salmonella is a type of bacteria and mosquito is an insect.

Yeast, molds, and mushrooms are all eukaryotic organisms that belong to the kingdom Fungi. Ecosystem and population are not kingdoms, but rather ecological concepts that describe interactions among different organisms in an environment.

Ecology is the scientific study of the interactions between organisms and their environment. The options given, organism and none, are not part of the field of ecology.

Consumers are organisms that obtain energy by consuming other organisms. Photosynthetic bacteria and green plants are autotrophic organisms that produce their own food through photosynthesis, while chemosynthetic bacteria obtain energy from chemical reactions. Scavengers, like vultures or hyenas, are examples of consumers that feed on dead organisms.

Zandile found that as the temperature increased, the transpiration rate also increased, leading to increased water loss from the plant. This experiment helped her conclude that temperature directly affects transpiration rates.

Transpiration is the process of water movement through the plants from roots to leaves, and eventually lost by evaporation from the stomata. Various factors, including temperature, humidity, light, and wind, influence the transpiration rate.

Temperature affects transpiration as it affects the diffusion rate of water vapor from the leaves into the surrounding air.

To investigate how temperature affects transpiration rate, Zandile set up an apparatus comprising a potted plant, a beaker, and a thermometer. The plant was selected for the experiment, and its leaves were covered with a plastic bag to prevent any water loss through the leaves' surface.

The apparatus was set up in the following way: The plant was placed in a beaker containing water. The beaker was placed on a heat source, and the temperature was monitored with the help of a thermometer. The plastic bag was tied around the stem to ensure no air entered the plastic bag, making the experiment airtight.

Zandile then increased the temperature by placing the beaker on a heat source. She noted the temperature of the water in the beaker and the temperature inside the plastic bag. She continued to monitor the temperature and the rate of water loss from the plant.

For more question on temperature visit:

https://brainly.com/question/28950625

#SPJ8

The results of excess nitrogen in the oceans is industrialization and increased use of fertilizers, the correct answer is (b).

This is because fertilizers used in agricultural and industrial practices are high in nitrogen compounds, which can runoff into nearby water bodies and eventually make their way into the ocean.

This excess nitrogen can cause a process called eutrophication, in which an excess of nutrients in the water leads to an overgrowth of algae and other aquatic plants. When these plants die, bacteria consume them and consume a lot of oxygen in the process, which can lead to oxygen depletion in the water and harm marine life, the correct answer is (b).

To learn more about nitrogen follow the link:

brainly.com/question/19938608

#SPJ1

The complete question is:

Which of the following results in excess nitrogen in the oceans?

a) Overfishing of marine organisms

b) Industrialization and increased use of fertilizers

c) Decreased atmospheric carbon dioxide levels

d) Decreased use of nitrogen-based fertilizers

Although the total distance the impulse travels in the reflex arc is less than 3 meters. the time taken is more than 0.04 seconds and the time taken is more than expected because of Synapses or due to gaps between neurons.

Diagram displays the whole reflex arcs from the tip of the finger to the spinal cord and then back out to a closer muscle, possibly in the forearm or the arm. Because the signal doesn't have to go all the way back to the finger, the total distance is less than 3 meters. Considering that it just travels back a portion of the way, less than 3 meters, it takes. Let's see, it takes more than twice as long, therefore the query makes us think about why the delay. Where is the hold-up what is happening there, and the key to this is that the gray matter of the spinal cord doesn't truly contain mylin, despite the fact that we said it- accelerates electrical conduction through the axon in the nerves of the extremities. Mylin has a whitish color, which contributes to the white matter's appearance of whitishness. Thus, the electrical signal becomes slower.

To know morw about reflex visit: https://brainly.com/question/6023003

#SPJ9

Energy cannot be created or destroyed, but it can be transferred and transformed.

There are a number of different ways energy can be changed, such as when potential energy becomes kinetic energy or when one object moves another object.

The total amount of energy in the universe has never changed and will never change because it cannot be created or destroyed. This does not imply that energy cannot change forms or even move between objects though.

Kinetic energy, or the energy attributed to motion, can be transferred from a moving item to a stationary object by means of effort, which is a frequent example of energy transfer that we experience in everyday life.

Therefore, Energy cannot be created or destroyed, but it can be transferred and transformed.

To learn more about Energy, refer to the link:

https://brainly.com/question/1932868

#SPJ1

Answer:

nucleic acid.,.................

This is a problem in the field of ecology.

The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.

It falls under the discipline of ecology, which studies the relationships between organisms and their environment.

Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.

In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.

They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.

For more such questions on ecology, click on:

https://brainly.com/question/842527

#SPJ11