Which characteristic makes a cell membrane selectively permeable?

the thickness of the membrane
the chemical nature of the membrane
the rigid nature of the membrane
the smooth outside of the membrane

The correct sequence of events in cellular respiration is option a: glycolysis, citric acid cycle, electron transport chain.

During cellular respiration, glucose is broken down to produce energy in the form of ATP. The process starts with glycolysis, which occurs in the cytoplasm and involves the breakdown of glucose into pyruvate molecules. Glycolysis generates a small amount of ATP and NADH.

The pyruvate molecules produced in glycolysis enter the mitochondria, where the citric acid cycle, also known as the Krebs cycle, takes place. In this cycle, the pyruvate is further broken down, releasing carbon dioxide and generating NADH and FADH2 as electron carriers. The citric acid cycle also produces a small amount of ATP.

The electron carriers NADH and FADH2 then participate in the electron transport chain, which is located in the inner membrane of the mitochondria. In the electron transport chain, the electrons from NADH and FADH2 are transferred through a series of protein complexes, creating a flow of electrons that drives the synthesis of ATP. This process is known as oxidative phosphorylation.

Therefore, the correct sequence of events in cellular respiration is glycolysis, citric acid cycle, and electron transport chain, as stated in option a.

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Question

Which of the following is the correct sequence of events in cellular respiration?

a. glycolysis, citric acid cycle, electron transport chain

b. glycolysis, preparatory reaction, citric acid cycle, electron transport chain

c. glycolysis, electron transport chain, preparatory reaction

d. citric acid cycle, glycolysis, electron transport chain, preparatory reaction

e. citric acid cycle, electron transport, glycolysis, preparatory reaction

Answer:

The two nucleotides are located on DNA strands that are parallel to each other

Explanation:

Deoxyribonucleic acid, commonly known as DNA, is one of the two types of nucleic acids. It is a molecule composed of a nitrogenous base, pentose sugar and a phosphate group. According to the information given in this question, Adenine is the last nucleotide at the 3' end of one strand of DNA. The following are factual about the nucleotide;

- Since DNA is a double-stranded molecule, the Adenine nucleotide will be base-paired with Thymine nucleotide (complementary base pairing) on the other DNA strand.

- Since complementary DNA strands are opposite to one another, this means that if the adenine has an unlinked 3' hydroxyl group, then the thymine must have an unlinked 5' phosphate group.

- Nucleotides in a DNA strand are joined to one another via a covalent bond called PHOSPHODIESTER BOND. Hence, the adenine and the thymine are each bonded to the previous nucleotide in the strand by a phosphodiester bond.

- In the complementary base pairing between two nucleotide bases, there are two hydrogen bonds between the adenine and thymine nitrogenous bases i.e. A=T.

- DNA strands that make up a molecule are complementary and opposite to one another, hence, they are said to be ANTIPARALLEL.

Answer:

frontal, occipital, and temporal

Explanation:

Answer:

•frontal

•occipital

•temporal

Explanation:

Biotic factors in an ecosystem are the living organisms or the participants in the foob web. They count on each other for their survival. The biotic factors in the foob web provided are the producers, consumers and decomposers. Abiotic factors in an ecosystem are rocks, soil, and water that collaborate with biotic factors to provide them with the nutrients they needed to survive. Sunlight, air, soil, and minerals are also examples of abiotic factors. Sunlight gives energy so that plants may use them i order to grow. This ultimately holds up the whole community of an ecosystem. Air also connects with plants to help them grow by providing an origin of CO2 and other nutrients.

A. The  mean is μ=21; the standard deviation is σ=3.2

B. Values of 14.5 girls or fewer are significantly low.

Values of 27.5 girls or greater are significantly high.

C. The result is significantly high, because 39 girls is greater than 27.5 girls. A result of 39 girls would suggest that the method is effective.

a) The mean and standard deviation for the numbers of girls in groups of 42 births:

μ = np = 42 × 0.5 = 21.

σ = √(np×(1-p)) = √(42×0.5 × 0.5) = 3.24.

b) The range rule of thumb (also known as the empirical rule) states that for a normal distribution, nearly all of the data falls within three standard deviations of the mean. The range is then given by μ±2σ.

Significantly low: μ - 2σ = 21 - 2×3.24 = 14.5.

Significantly high: μ + 2σ = 21 + 2×3.24 = 27.5.

c)  A result of 39 girls is significantly high, as it is greater than the upper range value of 27.5.

The result is significantly high, because 39 girls is greater than 27.5 girls. A result of 39 girls would suggest that the method is effective.

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b a d c

Explanation:

because the cell has not developed fully

Answer:

it should be a, because all the oragnneles and nucleus exist on cytoplasm

Chromatin, found in the nucleus of a non-dividing cell, is composed of thread-like DNA and associated proteins called histones. During cell division, the chromatin condenses to form chromosomes to safely transport the DNA.

The fine thread-like genetic material found within the nucleus of a non-dividing cell is known as chromatin. Chromatin is composed of DNA and associated proteins known as histones. The DNA is wrapped around these histone proteins forming a structure called a nucleosome, which can be visualized as a beaded necklace where the string represents the DNA and the beads are the associated histones. During cell division, the chromatin condenses to form chromosomes, to ensure that the DNA can be safely transported to the daughter cells. It is estimated that humans have approximately 22,000 genes distributed on 46 chromosomes.

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Answer:

Enzymes allow many chemical reactions to occur within the homeostasis constraints of a living system. Enzymes function as organic catalysts. A catalyst is a chemical involved in, but not changed by, a chemical reaction. Many enzymes function by lowering the activation energy of reactions.

Explanation:

I believe this is correct, if not let me know and I will fix it. I'm sorry in advance if it is incorrect.

Answer:

Las enzimas​​ son moléculas orgánicas que actúan como catalizadores de reacciones químicas​, es decir, aceleran la velocidad de rea cciLos enzimas son proteínas que catalizan reacciones químicas en los seres vivos. Los enzimas son catalizadores, es decir, sustancias que, sin consumirse en una reacción, aumentan notablemente su velocida.ón.

Explanation:

Answer:

AA would be the correct answer or BA D is wrong in C is wrong so its AA or BA but the best answer choice is AA

Simple is a good word to describe the fundamental approach. It is likely that her daughters will likewise be effective layers if you breed from the hen that produces the most eggs. This is so because a hen's genes, which she gets from her parents, play a factor in determining how many eggs she lays.

Increased growth rate and higher meat output were the primary objectives of selective breeding in meat chickens in the 1960s (i.e. producing larger chickens in less time). These days, the strategy is much more balanced, with health and wellbeing of the breeding animals playing a key role.

Inbreeding, linebreeding, and outcrossing are methods used in animal breeding.

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The statement suggests that less than one-third of the citizens' favorite positions are equal to the median favorite position.

Hotelling's model is a spatial model of political competition where candidates position themselves along a one-dimensional policy space to maximize their vote share. In this variant, with the inclusion of the option to stay out of the race, candidates have the opportunity to avoid losing by not participating. However, staying out of the race is still considered less favorable than tying for first place.

The statement indicates that less than one-third of the citizens' favorite positions are equal to the median favorite position (m). This suggests that there is a concentration of citizen preferences on positions other than the median. The specific distribution of citizen preferences and its implications would depend on the exact positioning of the candidates and the nature of voter behavior.

Overall, this variant of Hotelling's model introduces an additional option for candidates to stay out of the race, which affects the dynamics of competition and the distribution of citizen preferences. The statement about the concentration of citizen preferences highlights a departure from a symmetric distribution and adds complexity to the strategic choices and outcomes in the model.

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The increase in the shark population in the ocean near Alaska will have a significant impact on the other populations in the area. Sharks are known to be top predators in their ecosystem, and their population increase could lead to a decrease in the sea otter population.

This is because sharks prey on sea otters, which could result in a decline in their population. Consequently, this will have a direct impact on the sea star population since sea otters are the main predators of sea stars. With fewer sea otters to control their population, the sea star population will increase, leading to an overconsumption of clams (shellfish), which are the main food source for both sea otters and sea stars.
As the sea star population increases, they will consume a larger quantity of clams, which could result in a decline in the clam population. The overconsumption of clams by sea stars could lead to a shortage of food for other animals that rely on them, including other shellfish, sea urchins, and fish.
Overall, the increase in the shark population will have a ripple effect on the other populations in the ocean near Alaska. It is essential for scientists to continue studying these populations to understand how to mitigate the effects of population changes and ensure the preservation of the ecosystem.

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Answer:

is synthesized in the thylakoid membrane of the chloroplast.

Explanation:

Answer:

Traits acquired during an organism's lifetime cannot be passed

Explanation:

The law of use and disuse of organs as postulated by Jean Lamarck was wrong due to the fact that environmentally acquired characters cannot be passed to offspring.

Changes to organisms that are not the level of the gene cannot be passed to the offspring. For example, a wrestler that got big muscles due to constant work out cannot pass big muscles to his offspring. The offspring will need to work out in order to have big muscles. This is because big muscles in the wrestler is environmentally acquired.

Only changes that happen to the genome of an organism (mutation) can be passed to offspring.

From the above information, we conclude that in all the water samples number of the plant-like organisms is more than the number of animal-like organisms. When the number of nutrients in water increases the algae covers the whole area and this process is known as eutrophication.

Eutrophication is the process in which the whole area of the water is covered by algae or phytoplankton due to the presence of nutrients in excessive amounts.

The gradual increase in the concentration of phosphorus, nitrogen, and other plant nutrients in an aging aquatic ecosystem is termed eutrophication.

As we see in the given data that the number of plant organisms in all the water samples is more than that of animal-like organisms, we conclude that the process of eutrophication takes place there.

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Answer:

If KE = 0, the pendulum is not moving. At the top of the swing, the pendulum must stop for a brief moment.

Explanation:

Answer:

If KE = 0, the pendulum is not moving. At the top of the swing, the pendulum must stop for a brief moment.

Sorry I'm late but I hope this helps someone lol

Explanation:

People who are AB can receive blood from all types of blood groups.

This is the classification of blood based on polymorphisms in antigens on the surfaces of the red blood cells.

There are four types of blood groups and the AB is known as universal recipient which means it can receive blood from any of them. Also the patient should receive blood that is positive for Rh as it will not make anti-Rh antibodies which may destroy cells of the fetus.

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Answer: B and O........ Also, the patient can recieve blood that is NEGATIVE (only)

Explanation: these are the correct options on edge, i hope this helps!! :D

Answer:

because it can't speak

Explanation:

1. Watering palms can be done at any time.

2. Fungi are heterotrophic organisms.

3. Oomycota, although now classified under the kingdom Chromista, are still treated as fungi due to their many similarities.

4. The pathogen that completes its life cycle by attacking another host (barberry) is Helminrhosporium maydis.

5. Downy mildew affects the leaves of maize.

6. The symptoms of leaf blight include small yellowish spots on leaves.

7. Net blotch, which can cause extensive symptoms in winter but symptom-free new leaves in spring, is found in barley.

8. Sesame is primarily grown for its seeds.

9. Sesame seeds are high in protein, Vitamin B6, and thiamin.

1. When it comes to watering palms, it can be done at any time without a specific preference for a particular period of the day.

2. Fungi, unlike autotrophic organisms, are heterotrophic, meaning they obtain nutrients by consuming organic matter.

3. Oomycota, previously classified as fungi but now considered part of the kingdom Chromista, are still treated as fungi due to their numerous similarities with true fungi.

4. The pathogen Helminrhosporium maydis attacks barberry plants as part of its life cycle.

5. Downy mildew affects the surface of maize leaves, causing damage and potential crop loss.

6. Leaf blight is characterized by small, round to oval, yellowish spots on leaves, typically occurring at a young stage of plant development.

7. Net blotch, a fungal disease, can cause extensive symptoms in winter but does not affect new leaves in spring, particularly in barley plants.

8. Sesame is primarily cultivated for its seeds, which are rich in oil and have various culinary uses.

9. Sesame seeds offer nutritional benefits, as they are high in protein, Vitamin B6, and thiamin, providing essential nutrients for a healthy diet.

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Answer:

Sedimentary rock can change into metamorphic rock or into igneous rock. ... On Earth's surface, wind and water can break rock into pieces. They can also carry rock pieces to another place. Usually, the rock pieces, called sediments, drop from the wind or water to make a layer

Explanation:

Answer:

Sedimentary rocks are formed on or near the Earth's surface, in contrast to metamorphic and igneous rocks, which are formed deep within the Earth. ... Erosion and weathering transform boulders and even mountains into sediments, such as sand or mud. Dissolution is a form of weathering—chemical weathering.

Explanation:

Answer:

Explanation:

germinal variation.

plz mark as barainliest

Complete question:

Identify the biotic factors in the environment shown. Check all that apply.

1) people

2) grass

3) rocks in the mountains

4) nylon tent

5) wooden kayak

Answer:

1) people

2) grass

Explanation:

The ecosystem is composed of living and non-living things that interact and depend on each other. These are the biotic and abiotic factors.

Biotic and abiotic factors influence the survival and reproduction of living beings. They are related and in constant interaction. If one of these components is removed, the whole ecosystem will change because its equilibrium has been altered.  

Every abiotic component influence organisms and their survival and reproductive rates.

A few examples of the abiotic factors are solar light, minerals, water, air, gases, soil, and humidity.

Examples of biotic factors are plants, animals, insects, microorganisms, etc.

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The biotic factors of the provided list are:

The abiotic factors are:

In my opinion, the wooden kayak is a gray zone, meaning that it might be confusing. A kayak is an abiotic element with no life and is built by men. But it is constructed of wood. The wood originates in trees that are living beings, they are composed of cells, and they used to be alive. However, when talking about the kayak wood, we are referring to dead tissue. It is not alive anymore. Its cells are dead so, their whole system is not working. It is now composed of minerals and other elements with no life, and it has been modified and processed to build the kayak.

So my opinion is that the wooden kayak is an abiotic factor.

Based on the guideline, a 12-year-old cat would be approximately equivalent to a 64-year-old human.

There is no precise equivalence between the age of a cat and a human, as the aging process differs between species. However, a commonly referenced guideline is that the first year of a cat's life is roughly equivalent to 15 human years. After that, it's generally estimated that each additional cat year is equivalent to around 4 human years.

Based on this guideline, a 12-year-old cat would be approximately equivalent to a 64-year-old human. However, it's important to note that this is a rough estimation and individual factors such as genetics, lifestyle, and health can influence the aging process in both cats and humans.

In general, it is often stated that the first year of a cat's life is equivalent to around 15 human years in terms of aging. After that, the rate at which a cat ages slows down compared to humans. It is commonly estimated that each additional cat year is roughly equivalent to about 4 human years.

Applying this guideline, a 12-year-old cat would be considered to be approximately equivalent to a 64-year-old human. However, it's important to remember that this is just an estimation, and individual variations exist. Factors such as genetics, lifestyle, and overall health can influence the aging process in both cats and humans.

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Answer:

The term that describes the relationship in which one organism lives inside the other one is endosymbiosis.

Explanation: