BIOLOGY HIGH SCHOOL

What holds amino acid chains within a protein in shape?​

Answers

Answer 1
Answer:

Answer:

Proteins are the end products of the decoding process that starts with the information in cellular DNA. As workhorses of the cell, proteins compose structural and motor elements in the cell, and they serve as the catalysts for virtually every biochemical reaction that occurs in living things. This incredible array of functions derives from a startlingly simple code that specifies a hugely diverse set of structures.

In fact, each gene in cellular DNA contains the code for a unique protein structure. Not only are these proteins assembled with different amino acid sequences, but they also are held together by different bonds and folded into a variety of three-dimensional structures. The folded shape, or conformation, depends directly on the linear amino acid sequence of the protein.

Explanation:

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Which of the following plant cell structures could not be seen when using the 10X objective of the compound microscope?A) Nucleus2) Cell wall3) Cytoplasm4) Endoplasmic Reticulum
The nitrogen cycle _________. A. indicates the process of uptake of nitrates (NO₃ minus) by plants. B. marks transformation of ammonium (NH₄ plus) into nitrites (NO₂ minus) by bacteria. C. marks synthesis of ammonium (NH₄ plus) by decomposers. D. marks transformation of nitrogen (N₂) from the atmosphere to ammonium (NH₄ plus) by bacteria. E. marks organisms that take part in transformation of nitrogen from the atmosphere (N₂) into ammonium (NH₄ plus) and are located in the root nodules.
How do frogs use their tongue to capture and swallow their food?
Draw and label a typical structure of plant cell.Describe the function of all the parts of plant cell.

Which of the following describes only RNA?

Answers

Answer:

I'm not sure what the options are but rna or ribonucleic acid is made up of a nucleobase called uracil instead of thymine (which is what dna has). It kinda looks like half of dna.  

Suppose that the human insulin protein that was produced by the bacteria was much shorter than it should be. Upon further investigation, it was found that the DNA of the human insulin gene had a mutation while in the bacterial cells. What type of mutation could not result in these observations?

Answers

Silent Mutation

Explanation:

  • Mutations are changes in a DNA sequence, and they can occur due to radiation or other types of DNA damage. If mutations occur in the part of a gene that encodes a protein (the coding region of a gene), they can change the amino acid sequence of that protein
  • But not always; a silent mutation is a type of mutation in the coding region of a gene that doesn't actually change the amino acid sequence of the protein that is made
  • A point mutation is a change in one nucleotide or base pair of a DNA sequence. An example would be if a C in the DNA code was changed to a T
  • Point mutations can happen anywhere along a DNA sequence, Mutations in the coding region of DNA can directly affect the amino acid sequence of the protein product

The seed plants became dominant during the late ___ when the climate became ___ a. Cretaceo; drier b. Carbonifero; drier c. Carbonifero; wetter d. Cretaceo; wetter e. Cambrian; wetter

Answers

Answer:

D. (Cretaceous, Wetter)

Explanation:

During the late Cretaceous period, seed plants took over. The cause for this was increased rainfall and moisture, which created the ideal environment for plants to develop and seed plants to reproduce.

Which type of traits vary quantitatively due to the interaction of multiple genes?

Answers

The answer is polygenic traits.

Polygenic traits are determined by an interaction of multiple genes. As the name suggests, poly (Greek) means many, thus, polygenic means many genes. Many genes interact and together influence some phenotypic trait. Quantitative phenotypes are usually attributed to the polygenic effects.

Answer:

Explanation:

Polygenic

The juxtaglomerular apparatus is responsible for ________.A. the secretion of drugs
B. the secretion of acids and ammonia
C. reabsorption of organic molecules, vitamins, and water
D. regulating the rate of filtrate formation and controlling systemic blood pressure

Answers

The juxtaglomerular apparatus is responsible for D. regulating the rate of filtrate formation and controlling systemic blood pressure.

What is the function of juxtaglomerular?

JGA regulates renal hemodynamics through the tubular glomerular feedback (TGF) mechanism. This causes macula densa cells to detect changes in tubular fluid flow and composition and induce changes in the diameter and renin secretion of afferent arterioles.

Renin is produced by juxtaglomerular cells, also known as granule cells. These cells resemble epithelium and are located in the media of afferent arterioles as they enter the glomerulus. Juxtaglomerular cells secrete renin in response to the Stimulation of beta-1 adrenergic receptors.

Learn more about juxtaglomerular             here:brainly.com/question/3232962

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D- If blood pressure is low then it can detect and release hormones to raise it. This is also proportional to filtration rate

Why is the frogs tongue anchored in the very front

Answers

The frog's tongue is being anchored in the very front of its mouth instead of attaching it in its back. Its tongue is anchored in front in order to make hunting for prey easier because the from needs to throw its tongue to capture its food then throw the food back to its mouth. 
It`s anchored at the front instead of the back so it can catch it`s own prey easier. It developed this characteristic over time so they wouldn`t die off. By having their tongue anchored at the front, frogs can throw out their tongue easier.
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