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Pachacha [2.7K]
3 years ago
11

Researchers investigating the regulation of neurotransmitter release from presynaptic neurons proposed a model in which CDK5, a

protein expressed in axon terminals, inhibits the movement of synaptic vesicles to the presynaptic membrane... to test their model, the researchers used a modified version of green fluorescent protein...based on the model, which of the following best explains why a bright green fluorescence was observed following stimulation of a presynaptic neuron?
Biology
1 answer:
GrogVix [38]3 years ago
3 0

Answer:

"GFP contained in synaptic vesicles moved into the synaptic cleft by exocytosis."

Explanation:

Synaptic vesicles are small membrane sacs that carry neurotransmitters from the cell body where they are produced, to the presynaptic membrane of the terminal button where they are released. The release zone of the presynaptic membrane contains voltage-dependent calcium channels. When an action potential depolarizes the presynaptic plasma membrane, Ca^{2+}-channels open, and  Ca^{2+} flows into the nerve terminal to trigger the exocytosis of synaptic vesicles, thereby releasing their neurotransmitters into the synaptic cleft

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Compare and contrast aerobic and anaerobic respiration. We need to discuss the following points: stages involved, locations in t
Tomtit [17]

Answer:

Differences between aerobic and anaerobic respiration is whether or not oxygen is present. . During aerobic respiration, carbon dioxide, water, and ATP are produced. During anaerobic respiration, lactic acid, ethanol, and ATP are create, aerobic os used when heart rate and breathing rate rise, anaerobic is used during the first 1-2 mins of exercise, occurs in the cytoplasm of cells, while aerobic occurs in the mitochondria of the cells,  glycolysis occurs in both,  both are respiration, and both create ATP

Explanation:

7 0
4 years ago
Class Domain Family Genus Kingdom Order Phylum Species Taxonomy hominidsix kingdom system This is the study of grouping and nami
agasfer [191]

Your answers would be:

1. Taxonomy

2. Genus

3. Species

4. Phylum

5. Class

6. Order

7. Family

8. Kingdom

9. Domain

10. Six Kingdom System

11. Hominid

1.Taxonomy is the practice of categorizing organisms and naming them. All organisms are classified into specific groups and are then given a scientific name.

2. Genus is one of the more specific grouping and it is the genus that makes up the first part of the scientific name. The organisms are grouped based on their characteristics, traits, qualities and/or features.

3. Species is the most specific among all classifications. It is distinguished though as the group that categorizes organisms based on their ability to reproduce with each other.

4, Phylum is one of the broader categories/groups. They distinguish the different organisms based on their characteristics also but are not as specific. It divides the different kingdoms into smaller groups. For example, Kingdom Animalia would have phylum chordata which includes all vertebrates.

5. Class divides phylums down into more specific features. For example, phylum chordata is divided further into classes such as mammalia (mammals), reptilia (reptiles), Aves (birds), amphibia (amphibians), and the like.

6. Order again, is more specific. It divides classes into different groups once again. So for example, for humans, we are classified as Class mammalia and then we belong in the order of primates.

7. Family on the other hand comes after order. It is more specific and comes right after order. Again, using humans as an example, our family is hominidae, which puts organisms that are distinguished for their ability of walking upright.

8. In the Linean biological taxonomy the highest classification was Kingdom. In his classification system, organisms were divided into only 3 kingdoms. As technology and discovery expanded, we have added to it.

9. Domain is the higher rank than kingdom. It is the broadest among all. There are three main domains now, we have Eukaryota, Arachaea, and Bacteria. In the old system

10. The 6 Kingdom System is the most recent classification system. The organisms are divided into 6 kingdoms:

  • Animals
  • Plants
  • Protists
  • Fungi
  • Archaebacteria
  • Eubacteria

11. Hominid is a member of Hominidae family. These are species that share about 97% similarity to the DNA of the modern human. The species included in the hominid family have simple cultures and have a capacity to communicate through language.

7 0
3 years ago
He sense of equilibrium responds to movements of the head. It is divided into two types--static and dynamic equilibrium. Describ
olga55 [171]

Answer:

Explanation:

A. Static equilibrium monitors head position when the body is not moving

G. An example of static equilibrium occurs when a person is asleep.

H. An example of dynamic equilibrium occurs when shaking one's head "no."

B. Dynamic equilibrium monitors angular or rotational movements of the head when the body is moving.

5 0
4 years ago
_________ is the german term that describes the submergible watercraft that they developed and used extensively for world war i.
Nataliya [291]
<h3><u>Answer;</u></h3>

U Boat

<h3><u>Explanation</u>;</h3>
  • U-boat is an anglicised version of the German word U-Boot. It is the shortening of underseaboat. It describes the submergible watercraft that they developed and used extensively for world war i.
  • German began to employ U-boats to break a stalemate at sea. U-boats were traveling under water ships.
  • They were used to sink British supply ships with no warning. Due to the British blockade, with it's fleet bottled up, Germany had to use U-Boats to get at the British lifeline across the Atlantic.
7 0
3 years ago
Identifying the Contribution of Scientists
GrogVix [38]

Robert Hooke observed cork cells first used the word "cell".

Anton van Leeuwenhoek  used polished lens observed "animalcules"

Explanation:

Anton van Leeuwenhoek is known as father of microbiology. He is credited to improve the quality of lens in microscope. His first observation of organisms called animalcules.

He is credited to have build microscope that could get magnified by 200 times. He used word animalcules for small organisms from pond water when first observed in microscope. He discovered protozoa and named it animalcules".

Robert Hooke is famed for discovering cell from a cork of plant. He observed a compartment or honey comb like divisions when observed these cork cells under the microscope and named it cell. He was only able to see the cell wall as the cork cells are dead cells.

6 0
3 years ago
Read 2 more answers
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