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What is the shape of the endoplasmic reticulum?

Rough endoplasmic reticulum produces membranes and proteins that are transferred to various destinations. In certain types of cells, the rough endoplasmic reticulum produces antibodies and insulin. Smooth endoplasmic reticulum is involved in carbohydrate synthesis, lipid synthesis, enzyme production, hormone synthesis and the contraction of muscle cells. It serves as a staging area for the transport of endoplasmic reticulum products, including those manufactured in the rough endoplasmic reticulum.\nEndoplasmic reticulum is one of several structures found in a typical animal eukaryotic cell. It..

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Why does my furnace run constantly?

Weatherization helps reduce thermal exchange with the outdoors by insulating and reducing energy leaks. Poor weatherization means the furnace runs more. Most modern thermostats adjust to turn on the heat when the temperature hits a certain temperature below the set point. Usually, it should turn on at 1.5 or 2 degrees below the set point. If the gap is too small, the furnace cycles rapidly.

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What types of cells have the most mitochondria?

Mitochondria are organelles that are about 1 to 10 micrometers long. They produce adenosine triphosphate, or ATP, using the energy stored in food. The ATP molecules produced by mitochondria are used as the energy supply for the various cell metabolic processes. The process by which the mitochondria produce ATP is called aerobic respiration and this process allows cells to produce 15 times more ATP than they would without mitochondria.

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What is green energy?

Nonrenewable sources of energy such as the fossil fuels oil, coal and natural gas are finite, and elements such as the uranium used for nuclear power have limited availability. Renewable sources of energy take their power from wind, the sun, water movement, organic plants, waste material and the heat from the Earth.\nGreen energy encompasses the cleanest renewable sources of energy. Solar energy is derived from the Sun's rays, and wind turbines create energy by harnessing the power of the wind. Hydroelectricity utilizes the power of rapidly moving water, and energy from biomass is derived..

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How do you find molecular mass?

Determine the chemical formula First, look up the chemical formula for the compound under investigation. The chemical formula provides you information about which elements and how much of each element makes up the compound. For example, the chemical formula for water is H2O. This means that water is made of two hydrogen atoms and one oxygen atom. Multiply the atomic weight of each element by the number of atoms present in the compound Using the periodic table of elements, find the atomic weight of the elements that make up the compound. Multiply the atomic weight of each element by the number ..

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Does sound travel faster at night or during the day?

Warm air provides less resistance for sound waves, allowing them to travel faster with the same amount of force. However, warm air also causes them to refract upward. Cooler air causes sound waves to refract downward toward the Earth, and generally, there is less ambient noise to compete with during common sleeping hours, leading to the common misconception that sound travels faster at night (because it's easier to hear). Light is not a factor in how far sound travels, only temperature.

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What education does an astronomer need?

Many astronomers attain their education at universities and colleges that are well known for their astronomy and physics departments. For example, the Massachusetts Institute of Technology, Cambridge University and Stanford University have prestigious astronomy programs draw a number of students each year.\nIn addition to becoming educated on subjects such as astronomy, physics and mathematics, hopeful astronomers must learn about the scientific process. It is also important for astronomers to be comfortable with the type of technology used in modern observatories and laboratories. Astronomy a..

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Is apple juice a base or an acid?

Many citrus fruit juices, such as pineapple, orange and grapefruit juices, are also acidic based on pH. For example, canned pineapple juice has a pH that ranges between 3.3 and 3.6. The pH scale ranges from 0 to 14, where 7 is considered neutral, below 7 are acids and above 7 are base substances. The most acidic substances have the lowest pH values, while a pH that is close to 14.0 indicates very alkaline substances. Two examples of very alkaline compounds are ammonia and lye.

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Which part of the flower develops into the seed?

The work of ovules begins with pollination. Pollination occurs when grains land on the flowers of receptive species. These grains then stimulate the growth of pollen tubes, which connect with ovules in the ovaries. This connection facilitates the passage of male gametes into the ovaries. There, male gametes fertilize eggs, and the process of fertilization completes. Upon fertilization, seeds develop from the ovules and eventually turn into fruit. Ovules exist in many types of plants, flowers and trees, but vary in location and shape depending on the species. In gymnosperms, which include conif..

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What animals travel in packs?

African wild dog packs can have up to 40 members. Canine packs are led by an alpha animal. Sometimes, only the alpha male and female are allowed to mate.\nSome scientists believe that meat-eating dinosaurs such as allosaurs hunted in packs, though there is some dispute about this. Though the fossilized bones of these dinosaurs have been found together, these animals may have simply been fighting each other over a kill.\nMules are a bit of a special case for equines because a group of mules is called a pack as opposed to a herd, as is the case for horses, donkeys and zebras. Mules, the result o..

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