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Otrada [13]
3 years ago
14

What is prokaryotic cells??​

Biology
2 answers:
Fed [463]3 years ago
8 0
A prokaryote is a typically unicellular organism that lacks a nuclear membrane-enclosed nucleus.
postnew [5]3 years ago
4 0

Answer:

Prokaryotes are single-celled organisms of the domains Bacteria and Archaea. All prokaryotes have plasma membranes, cytoplasm, ribosomes, a cell wall, DNA, and lack membrane-bound organelles. Many also have polysaccharide capsules. Prokaryotic cells range in diameter from 0.1–5.0 µm.

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Cystic fibrosis is an example of a genetic disease caused by the deletion of a nucleotide. what is the term for this type of mut
Molodets [167]
This is called a frameshift mutation....

Losing one nucleotide would cause the entire framework of codons (the 3 nucleotide set that codes for the amino acids) to move off by 1 which results in likely completely different amino acids being called for when the protein is built. 

In the case of CF, the normal CFTR gene which codes for Cystic Fibrosis Transmembrane Receptor - a membrane protein, with a point mutation would not be made properly and is therefore not placed into the membrane of the cells of the offspring - this protein is very important in moving sodium into the cell - if this is messed up it results in disease.

Note that CF can result in a number of different types of mutations to the CFTR gene...a frameshift mutation is just one way.
8 0
3 years ago
List 3 factors that can speed up the rate of chemical reactions
zysi [14]

Answer:

  1. Temperature
  2. Greater Surface Area
  3. Catalysts

Explanation:

Temperature

  • An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision (Figure. 17.5 “Temperature and Reaction Rate”).

Greater Surface Area

  • The rate of a chemical reaction can be raised by increasing the surface area of a solid reactant. ... more particles are exposed to the other reactant. there are more collisions. the rate of reaction increases.

Catalysts

  • A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism.

Hope this help!!!

7 0
3 years ago
Read 2 more answers
The two main divisions of the trade industry are?
Rina8888 [55]

Answer:

The correct answer is Wholesalers and Retailers

Explanation:

By and large, the retailing and wholesaling businesses (regularly alluded to as the distributive trades sector) speak to the transitional strides in the dispersion of stock or goods among manufacturers and consumers of merchandise.

Wholesale and retail exchange services are critical to the proficient and viable progression of merchandise from manufacturers to consumers.

Together the wholesaling and retailing enterprises represent critical bits of monetary yield and worldwide business.

4 0
3 years ago
The deforestation of rainforest ecosystems for logging and for farming has had what direct effect on those areas?
zloy xaker [14]
Loss of habitat for the surrounding wildlife. therefore a long term affect of the wildlife that lived there. If deforestation continues the forest and its inhabitants with either have to relocate or die trying to find a new place to live.
8 0
3 years ago
Read 2 more answers
Using what you know about cell communication, explain the difference between intercellular and intracellular communication
solniwko [45]

In biology, cellular communication is a term used to determine distinct kinds of methods of communication among the living cellulites. Of these intercellular communication signifies the communication between the cells. In this kind of communication, membrane vesicle trafficking plays an essential role in both humans and animals.  

On the other hand, intracellular communication signifies towards the communication of the organelles in order to sustain cellular homeostasis.  


4 0
3 years ago
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