Which of the following are not true of exocytosis? A.it occurs at the cell membrane B.it does not require energy C.it needs a vesicle to move the matter D.it expells matter out of the cell

Answers

Answer 1
Answer:

The statement which is not true is it needs a vesicle to move the matter. Thus, option C is correct.

What is cell?

Cell is defined as the base of life as it is the structural as well as functional unit of life. Cell is made up of pre existing cells and the cell contain various cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.

Basically,cell is of two type one in prokaryotic and another one is eukaryotic. The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.

The unicellular animals are made up of single cell and all the functions carried out in a single cell like amoeba and multicellular organisms are made up of multiple cells and there is specific cell for specific functions.

Therefore,The statement which is not true is it needs a vesicle to move the matter. Thus, option C is correct.

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Answer 2
Answer:

Answer:C is wrong exocytosis only needs a transport protein and atp

Explanation:


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Which specialized carbohydrate is used for structure in shrimp?

Answers

Answer: Chitin

Explanation:

Carbohydrates can be defined as the class of bio molecules which includes sugar, cellulose, chitin and many forms.

Chitin is the major constituent of the exoskeleton. It is made of polysaccharide. It is a type of exoskeleton which is is found in arthopods which provides support to the shrimp.

This polysaccharide is chitin.

The specialized carbohydrate used for structure in shrimp is chitin. Chitin is a long-chain polymer of N-acetylglucosamine, which is a derivative of glucose.

How do we explain?

Chitin provides strength and flexibility to the exoskeleton, allowing the shrimp to move and grow while still being protected and is also found in the exoskeletons of other arthropods, such as crabs and lobsters. It is also found in the cell walls of some fungi and algae.

Chitin is a very strong material. It is even stronger than steel, pound for pound. However, it is also very lightweight. This makes it an ideal material for the exoskeletons of shrimp and other arthropods.

The exoskeleton of a shrimp is made up of several layers of chitin. The outermost layer is the hardest layer. It is called the epicuticle. The epicuticle is made up of a waxy substance that helps to protect the shrimp from water loss and from predators.

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Which example represents a DISADVANTAGE of asexual reproduction? A) Genetic variety slowly causes hundreds of species of beetles to form from a single species. B) A single antibiotic is able to quickly and easily kill millions of genetically identical bacteria. C) Millions of bacteria are quickly produced by cell division, in one afternoon in a jug of milk that has been left on the counter. Eliminate D) Male anglerfish must live on larger females as parasitic mates, since they encounter other anglerfish so infrequently in the deep ocean.

Answers

Answer:

The correct answer would be an option B.

Asexual reproduction is a reproduction in which offspring are produced from a single parent.

It does not involve fusion of gametes and crossing over due to which the offspring contain identical genome as that of parents.

This reduces the genetic diversity in a population due to which all the organisms of a population are at equal risk of extinction under unfavorable conditions such as high temperature, antibiotics, change in pH of surrounding medium et cetera.

Thus, the disadvantage of asexual reproduction is the lack of genetic diversity due to which a single antibiotic is able to kill millions of genetically identical bacteria.

_______ is a technique that uses the images from several telescopes to produce a single image.

Answers

The technique that uses the images from several telescopes to produce a single image is called 'Astronomical interferometery. By combining images from several telescopes, it is possible for astronomers to create detailed images with high resolutions.

RESPIRATION IN MUSCLESHow is cellular respiration, both anaerobic and aerobic, instrumental in muscle contractions?

Answers

Answer:

Image result for How is cellular respiration, both anaerobic and aerobic

Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen). During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP.

Explanation:

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Which statement BEST describes common communicable diseases?A.

Most communicable diseases are either bacterial or viral and infect the respiratory tract.


B.

All communicable diseases are viruses that cause pneumonia.


C.

Most communicable disease are bacteria and viruses that infect the intestinal tract.


D.

All communicable diseases are bacteria that grow in the respiratory tract.

after reading this:

A communicable disease is an illness transmitted through contact with microorganisms. People, animals, food, surfaces, and air can all be carriers of the microorganisms that pass infectious illnesses from one host to the next. The exchange of fluids or contact with a contaminated substance or individual may be enough to allow a communicable disease to spread.

what do you think the answer is?

Answers

By definition, communicable diseases are diseases that can be passed from one person to another. Also, not all communicable diseases are caused by bacteria only nor virus only. So therefore, the answer would be option A. The statement that BEST describes common communicable diseases is this: Most communicable diseases are either bacterial or viral and infect the respiratory tract. Hope this answer helps.

Most communicable diseases are either bacterial or viral and infect the respiratory tract.

Communicable, or infectious diseases, are generated by microorganisms such as parasites, fungi, bacteria, and viruses, which can be spread, directly or indirectly, from one person to person.

A majority of upper respiratory diseases are due to self-limited viral epidemics. Occasionally, bacterial germs may produce upper respiratory infections. Most often, upper respiratory virus is communicable and can spread from person to person by breathing respiratory droplets from coughing or sneezing.

Ken needs to measure out 50 mL of water. Which of the following is the best tool for Ken to use?A. spring scale
B. ruler
C. graduated cylinder

Answers

The correct answer is (c.) graduated cylinder. If Ken needs to measure out 50 mL of water which means the volume of the water, you may use graduated cylinder. A graduated cylinder is a measuring and mixing laboratory equipment for measuring the volume of a liquid.

Answer:

it is c graduated cylinder

Explanation:

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