What is a chloroplast and why is it important to plant growth?

Animal and plant cells have many differences concerning their structure. However they also chare some characteristics, like having mitochondria. B is correct. Both cells use the same molecules fro energy.

Both animal and plant cells are eukaryotic. They carry their genetic material in the nucleus and mitochondria. Organelles are located in the cytosol, and both of them are surrounded by a cell membrane.

However, they have some differences:

- Animal cells do not have a cell wall. They are only surrounded by the cell membrane, which is flexible so they can adopt different shapes.

- Plant cells have a wall, so their shape is usually prismatic and regular. The cell wall is composed mainly of cellulose.

- Animal cells do not have chloroplasts because they do not photosynthesize.

- Plant cells have chloroplasts, and they are in charge of the photosynthesis process that allows plants to release oxygen. These organelles use solar light as a source of energy.

- Animal cells have many small vacuoles whose function is to store water, ions, and waste intracellular substances.

- Plant cells have a unique big-sized vacuole that might occupy almost 90% of the cell. Their principal function is to store water and keep the turgidity. When the vacuole gets empty, the plant loses rigidity.

Other differences are:

- The animal cell has centrioles, while the vegetable cell does not.

- Plasmodium, chromoplasts, and glyoxysomes are present in the vegetable cell but not in the animal cell.

Option B is correct. Both cells use the same molecules fro energy.

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Answer:

Every point on a contour line is of the exact same elevation

Explanation:

Every point on a contour line is of the exact same elevation. In other words, contour lines connect points of equal elevation. By definition, contour lines separate points of higher elevation from points of lower elevation.

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The statement "Mitochondria have an inner membrane system called the thylakoid membranes." is false. Mitochondria are membrane-bound organelles found in most eukaryotic cells.

They are known as the "powerhouses" of the cell because they generate energy in the form of ATP through a process called cellular respiration. Mitochondria consist of two main membranes: the outer membrane and the inner membrane.

The inner membrane of mitochondria is highly folded, forming structures known as cristae. The cristae greatly increase the surface area available for ATP synthesis and other important metabolic reactions. The inner membrane contains proteins involved in the electron transport chain and ATP synthesis, which are essential for cellular respiration.

On the other hand, thylakoid membranes are found in chloroplasts, the organelles responsible for photosynthesis in plants and algae. Thylakoid membranes contain pigments such as chlorophyll that capture light energy and convert it into chemical energy during the process of photosynthesis.

Therefore, the correct statement is that mitochondria have an inner membrane system called the cristae, not the thylakoid membranes. The thylakoid membranes are specific to chloroplasts and are involved in the process of photosynthesis, not cellular respiration.

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Answer:

B Unsaturated

Explanation:

Unsaturated fat, a fatty acid in which the hydrocarbon molecules have two carbons that share double or triple bond(s) and are therefore not completely saturated with hydrogen atoms.

Answer:

1 Carbon dioxide.

2 Methane.

3 Nitrous Oxide.

4 Fluorocarbons.

Explanation:

The mother is the parent that gave the boy the colorblind gene.

In humans, color blindness is a recessive, sex-linked trait that is carried on the X chromosome.

Since males only inherit one X chromosome from their mother and one Y chromosome from their father, they are more likely to express sex-linked recessive traits if they inherit the affected allele from their mother.

In this scenario, the boy's father is colorblind, which means he must have inherited the colorblind gene from his mother since his father could not have passed it on to him (his father could only pass on the Y chromosome to him).

The mother is not colorblind, which means she must have inherited at least one normal allele for color vision. Since the boy is colorblind, he must have inherited the colorblind allele from his mother, who must be a carrier for the trait.

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1. A rainbow appears in the sky,

2. followed by its detection by rods and cones.

3. The rods and cones are where transduction occurs.

4. The brain receives neural impulses via the optic nerve.

5. The occipital lobe receives information from the thalamus.

6. Occipital lobe cells become active, enabling someone to spot a rainbow in the sky.

The optic nerve exits the eye and travels to the brain along the optic disc of the retina. No receptor cells can be seen in the optic disc. The cornea, where the light is twisted, is where light first enters the eye anatomically. Light enters the eye through the cornea, then travels through the pupil and lens.

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Correct Question:

Put the sensation and perception process in order, from the time the rainbow is first detected by the eye to when it is perceived by the brain.

Answer:

Thermal Runaway

EX- Thermal runaway describes a process that is accelerated by increased temperature, in turn releasing energy that further increases temperature.

Explanation:

For a more simpler explanation , picture a pot of water and as you increase the volume of fire so does the energy (HEAT) inside . As air bubbles (ENERGY) start to quickly evaporate (BOILING) this actually increases the temperature inside causing Thermal Runaway.

The microgametophyte is found within the pollen grain, while the megagametophyte is formed within the ovule.

In angiosperms, the microgametophyte refers to the male gametophyte and the megagametophyte refers to the female gametophyte.

The microgametophyte is typically produced within the pollen grains of the flower, and it is composed of just a few cells.

In flowering plants, the microgametophyte is also known as the pollen grain. It contains two cells: the generative cell, which will eventually form the sperm cells, and the tube cell, which will grow to form the pollen tube that delivers the sperm cells to the ovule.

The megagametophyte, on the other hand, is formed within the ovule of the flower, and it is composed of many cells. It is sometimes referred to as the embryo sac.

The megagametophyte contains the female gametes, which are the egg cells. It is formed by the process of megasporogenesis, which involves the production and development of the megaspore, followed by the growth and differentiation of the megagametophyte.

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Answer:

The process of respiration is similar in all organisms, whether plants or animals – carbon dioxide is given out and oxygen is used up, and a lot of energy is produced. In plants, specific organs for breathing are absent. The exchange of gases, however, occurs by the process of diffusion.

Explanation:

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A process common to all living organisms, whether aerobic or anaerobic, is glycolysis as part of the metabolism of all living organisms.

Glycolysis is the universally distributed metabolic pathway in all organisms and cells, by means of which a glucose molecule is degraded to two pyruvate molecules, in addition to producing energy in the form of ATP and NADH.

Specifically, ATP is the only high-energy phosphate that is formed primarily from the energy gain of the cell through oxidative processes (aerobic) or glycolysis (aerobic or anaerobic).

Glycolytic enzymes are located in the cytoplasm, near the contractile filaments, therefore, the ATP produced by the glycolytic pathway is formed near the place where it is used.

Phases:

In aerobics glycolysis consists of extracting energy from organic molecules from the oxidation of carbon by oxygen.

In anaerobic glycolysis the element used to achieve oxidation is not oxygen but sulfate or nitrate.

Therefore, we can conclude that a process common to all living organisms, whether aerobic or anaerobic, is glycolysis as part of the metabolism of all living organisms.

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The past of the earth was like that there were Similar tectonic movements were occurring.

What is tectonic plates?

Plate tectonics is used to define that, there is a widely held scientific idea that the Earth's lithosphere is made up of a series of huge tectonic plates that have been moving slowly since around 3.4 billion years ago.

Tectonic plates clashing now is causing some mountain ranges to rise, and earthquakes are sometimes produced by tectonic plates moving against each other. Similar tectonic motions were present in the past of the world.

Therefore, option D is correct.

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The line between the crust and mantle is known as the Mohorovicic Discontinuity, abbreviated Moho. This barrier is situated at a depth of the Earth's surface of about 2891 kilometres.

The boundary between both the crust and the mantle is currently known as the Mohorovii discontinuity, sometimes referred to as the Moho. It is a distinct leap in seismic wave velocity. As you are surely aware, the earth's surface and mantle are separated by the Mohorovicic Discontinuity. It would be constructed of many elements, including oxygen, iron, sodium, silicon, & aluminium. Rocks that make it up the Earth's crust & mantle would contain these elements.

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Answer:

Option C. is correct.

Explanation:

According to Chargaff's rules, DNA (Deoxyribonucleic Acid) from any species of an organism should have purine and pyrimidine bases in the ratio \(1:1\)

This ratio is very important for solving the structure of DNA.

As per this rule, DNA is double-stranded, and covalent bonds between identical nucleotides hold the strands together.

So, Option C. is correct.

Answer:

C

Explanation:

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which of what? is there an attachment

Answer:

344

Explanation:

34235

Carcinogens that lead to mutations in oncogenes are called oncogenic mutagens, which can promote cancer development through genetic alterations.

Carcinogens that lead to mutations in the DNA of oncogenes are known as oncogenic mutagens. These substances possess the ability to induce genetic changes within oncogenes, which are specific genes that have the potential to drive the development of cancer. Oncogenes play a crucial role in regulating cell growth, division, and differentiation. When mutations occur within oncogenes due to the exposure to carcinogenic mutagens, their normal function can be disrupted, resulting in uncontrolled cell growth and the formation of tumors.

The impact of oncogenic mutagens lies in their ability to alter the genetic information within oncogenes, leading to abnormal cellular behavior and contributing to the initiation and progression of cancer. These mutagens can cause changes in the DNA sequence, such as point mutations, insertions, deletions, or chromosomal rearrangements, affecting the expression and activity of oncogenes. The dysregulation of oncogenes can disrupt essential signaling pathways, promoting cellular proliferation, inhibiting apoptosis, and enabling the transformation of healthy cells into cancerous cells.

Therefore, the identification and avoidance of oncogenic mutagens are vital for preventing and reducing the risk of cancer development, as they directly impact the genetic integrity of oncogenes and influence the complex processes underlying carcinogenesis.

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Answer: True.

Explanation: Energy is being removed from the substance as it changes state. As energy is added to the liquid, particles throughout the liquid move faster. Boiling. When particles move fast enough to break away from other particles, they evaporate and become gas.

Answer:D

Explanation:atp binds to actin to make the power stroke happen  is incorrect as ATP binds with myosin to provide the energy required for the cross bridge

ATP also has a rule in the sodium potassium pump which exchanges 3 Na+ out with 2 K+ to maintain the RMP of skeletal muscle which is -90mv  And also ATP has an important role in the reuptake of ca++ back to SR.

The non-polar "tails" of membrane lipids bound to the polar "heads" via ether linkages would be found in Archaeal Cells.

Archaea are single-celled microorganisms that are similar in appearance to bacteria but different from them in many other ways. Their DNA has some characteristics that are more similar to those of eukaryotes than to those of bacteria, but they lack a nucleus.

Archaea thrive in extreme environments, such as volcanic vents and hot springs, as well as in more moderate environments, such as soil and the human body. They play an essential role in the ecosystem by serving as decomposers and nitrogen fixers. Their cell walls, like bacteria, come in a variety of shapes and sizes, but they are structurally distinct and chemically unique.

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Answer:

It will start to rain.

Explanation:

The shape and height difference between the Appalachian and Rocky Mountains is primarily due to differences in the geologic processes that formed them.

The Appalachian Mountains were formed through a process called "continental collision," where two land masses collided and folded together, creating a long, relatively low range.

In contrast, the Rocky Mountains were formed through a process called "subduction," where one tectonic plate was forced beneath another, creating a taller and more jagged range.

Additionally, the age of the rocks that make up the two ranges is different, with the Appalachian Mountains being much older and more eroded than the younger and more rugged Rocky Mountains.

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Answer:

the real life example is our body heat when we weat coats or jackets in winters

Answer:

Addition of manure and fertilizer manus and fertilizer sedition also enhances the fertility of the soil and the growth of legume crops, that is, crop rotation, also enhances the fertility of the soil.

Answer:

Your body breaks down your food into nutrients which is why it takes hours to fully digest food.The human body breaks down the

Food into Einto amino acids, starches into simple sugars, and fats into fatty acids and glycerol.

It enables the members of a population to endure and produce offspring with the necessary trait for survival, while those without it will disappear.

A population of people with a diversified genetic makeup has a higher chance of surviving than one with a homogeneous genetic makeup.

A population's variation enables certain members to adapt to the shifting environment, and natural selection enables the expression of those advantageous traits to endure.

Therefore, natural genetic variations among members of the same species are referred to as genetic variation.

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Answer:

just search it up on google

Answer:

Hooves are better equipped for environments with plains.

Explanation:

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Explanation:

Number of Adenine = Number of Thymine

Number of Guanine = Number of Cytosine

Total number of Adenine and Thymine nucleotides = 40%

Therefore number of Guanine = 60% / 2 = 30%.

All the thymine binds with adenine, therefore there is the same number of nucleotides that contain thymine as there are of adenine

If we have 20% thymine bases there will certainly be 20% adenine

we are left with 60% that are guanine and cytosine, we know that all cytosine binds with guanine, therefore there is the same number of cytosine and guanine bases. 2G=60 G=60/2=30% guanine bases

High blood pressure can place increased pressure on the walls of the blood vessels inside the brain, increasing your chances of developing an aneurysm. Also, it forces the heart to work harder to pump blood to the rest of the body. This causes the lower left heart chamber (left ventricle) to thicken. A thickened left ventricle increases the risk of heart attack, heart failure and sudden cardiac death. Moreover, blood vessels damaged by high blood pressure can narrow, rupture or leak. High blood pressure can also cause blood clots to form in the arteries leading to the brain, blocking blood flow and potentially causing a stroke.

So the correct answer is: All of thees choices are correct.