1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rufina [12.5K]
3 years ago
11

_____ refers to the number and variety of species on Earth.

Biology
1 answer:
spin [16.1K]3 years ago
7 0
Its biodiversity because its the variety of life in the world or in a particular habitat or ecosystem.
You might be interested in
You place different colored liquids in a hummingbird feeder and count how many hummingbirds visit.
KonstantinChe [14]

Answer:

the different colored liquids would've the manipulated while the amount of hummingbirds that visit is the responding variable.

4 0
3 years ago
Starting with a protein that has been inserted into the Endoplasmic reticulum (ER) membrane with the Amino (N) terminal in the E
Vika [28.1K]

Answer and Explanation:

Ribosomes are the primary structure for protein synthesis. They can be found in the rough endoplasmic reticulum or floating in the cytosol.  

Free ribosomes are not attached to any cytoplasmic structure or organelle. They synthesize proteins only for internal cell use. Other ribosomes are attached to the membrane of the endoplasmic reticulum and they are in charge of synthesizing membrane proteins or exportation proteins. Free and attached ribosomes are identical and they can alternate their location. This means that although free ribosomes are floating in the cytosol, eventually, they can get attached to the endoplasmic reticulum membrane.  

Synthesis of proteins that are destined to membrane or exportation starts in the cytoplasm with the production of a molecule portion known as a <u>signal aminoacidic sequence</u>. This signal sequence varies between 13 and 36 amino acids, is located in the <u>amino extreme</u> of the synthesizing protein, and when it reaches a certain length, it meets the <u>signal recognizing particle</u>. This particle joins the signal sequence of the protein and leads the synthesizing protein and associated ribosome to a specific region in the Rough endoplasmic reticulum where it continues the protein building. When they reach the membrane of the endoplasmic reticulum, the signal recognizing particle links to a receptor associated with a pore. Meanwhile, the ribosome keeps synthesizing the protein, and the enlarged polypeptidic chain goes forward the reticulum lumen through the pore. While this is happening, another enzyme cuts the signal sequence, an action that requires energy from the ATP hydrolysis. When the new protein synthesis is complete, the polypeptide is released into the reticulum lumen. Here it also happens the protein folding (which is possible by the formation of disulfide bridges of proteins are formed) and the initial stages of glycosylation (the oligosaccharide addition).  

Once membrane proteins are folded in the interior of the endoplasmic reticulum, they are packaged into vesicles and sent to the Golgi complex, where it occurs the final association of carbohydrates with proteins. The Golgi complex sends proteins to their different destinies. Proteins destined to a certain place are packaged all together in the same vesicle and sent to the target organelle. In the case of membrane proteins, they are packaged in vesicles and sent to the cell membrane where they get incrusted.  

There are certain signal sequences in the <u>carboxy-terminal extreme</u> of the protein that plays an important role during the transport of membrane proteins. A signal as simple as one amino acid in the c-terminal extreme is responsible for the correct transport of the molecule through the whole traject until it reaches the membrane.  

4 0
3 years ago
What’s the role of oxygen in cellular respiration
fredd [130]

Answer: A

Explanation:

8 0
3 years ago
Read 2 more answers
How are sugar molecules used inside cells?
klasskru [66]
Respiration Chemical change that takes place inside living cells, which uses glucoses and oxygen to produce energy.
@CristianoRonaldo
 
3 0
3 years ago
1. For this task, you will imagine that you are a reporter for a scientific magazine. Your task is to explain the process of pro
JulijaS [17]
All cells as we can say they work through their proteins. The work of proteins is being characterized by their sub-atomic capacity, contribution to a specific natural process and limitation inside. Segments of protein work which are being characterized by the correct synthesis, adaptation of proteins and structure which are being scrambled in the DNA area which is another name is called locus encoding the protein.
New proteins are being produced by the procedure of protein combined with organic cells, which are adjusted by the loss of protein cell through corruption. The RNA which is duplicated in protein hereditary data is encoded in DNA atom which is being created in the core known as RNA or mRNA. mRNA encodes data which is for solitary protein and is considered little in estimate by contrasted with DNA atom. This makes work easier for mRNA particles to leave the core passing through some small openings called atomic pores.
It leaves the core and goes straight to the cytoplasm. mRNA interferes with cell structure referred to as ribosome and fills in as cells contrasting agent within the procedure of protein union. Ribosome comprises of ribosome RNA particles or rRNA and proteins which are sorted out into two subunits.
When a small subunit is being accused of tRNA and corrosive amino acid methionine experiences mRNA which begins to begin flag.
When beginning succession AUG is found then the codon for corrosive amino methionine where substantial subunits join the little one to frame and hole ribosome where now protein amalgamation starts.
Following the codon downstream of AUG codon, the elongation of tRNA and amino corrosive enter to the ribosome. tRNA with wrong amino corrosive and wrong anticodon enters ribosome it is rejected because it can not base pair with mRNA.
The ribosome then propels on triplet and amino corrosive and tRNA enters the ribosome and method is then rehashed. In the termination, the ribosome achieves all the stop codons. Post-translation modification alludes to the covalent and leads to large enzymes change of proteins following biosynthesis of protein PTM happens in any progression within the life cycle of protein.
Protein in PTMs can be reversed depending upon the idea of change for example kinases phosphorylate of protein at a certain amino corrosive side chains phosphatases hydrolyzes phosphate where they gather and expel it from protein.
3 0
4 years ago
Other questions:
  • if there is a low concentration of sucrose to water (so there’s more water than sugar in a solution) outside of a cell, will the
    15·1 answer
  • n this lab, you will figure out who was guilty of the classroom food mess by determining which macromolecules are present in the
    10·2 answers
  • Muscle fibers that have many mitochondria and contain myoglobin are (A) fast-twitch muscles. (B) skeletal muscles. (C) smooth mu
    8·1 answer
  • Identify the phases of meiosis I described below.
    12·2 answers
  • Q: A: Which of these best describes what occurs during cytokinesis?
    7·1 answer
  • In which kingdom do all organisms have cells that lack a cell wall?
    13·2 answers
  • Which of the following is a benefit of recreation activities?
    7·2 answers
  • Which of the following are located in the dermis of the skin?
    7·1 answer
  • True or False
    14·2 answers
  • Why is global warming happening?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!