ap bio

A student analyzed a viral genome and found that the genome had the following Nucleotide composition • 28% adenine • 20% thymine • 35% cystosine • 17% guanine. Which of the following best describes the structure of a viral genome

Single-stranded DNA

Which of the following best describes the formation of the bond shown in figure 1

A covalent bond is formed between a carbon atom in a nitrogen atom along with the formation of H2O

A small protein is composed of 110 amino acids linked together in a chain. As shown in figure 1, the first and last five amino acids in the chain or hydrophobic (have no polar and uncharged R groups), Where as the remaining 100 amino acids are hydrophilic (have charged or polar R groups). The nature of the R group determines if the amino acid is hydrophobic or hydrophilic. A mutation results in the production of a version of the small protein that is only 105 amino acids long, as shown in figure 2. Five of the hydrophobic amino acids are missing from one end of the chain. Which of the following best picks the Tertairystructures of the two proteins in water? The diagrams and the option or not drawn to scale.

A, it's a picture of the original protein in the mutated protein were there both in a ball where the hydrophilic atoms are on the outside in the hydrophobic or on the inside I can't put in pictures so sucks

Students conducted a controlled experiment to investigate whether sawdust provides enough nutrients to support plants growth. The students separated nearly 10 identical sunflower seatings into two groups. That's enough about the question so sucks. They observe differences between the groups most likely resulted from differences in the ability of seedlings to reduce which of the following monomers.

C, and it is a picture of two molecules. One had 4h 1n 2c 2o and an r group and the other 4h 5n 5o 1p this answer makes no sense but too bad

A culture of Spirogya is maintained in a water solution containing dissolved carbon dioxide in a source of phosphates but lacking nitrogen compounds a researcher determines the rate of synthesis of several organic compounds found in the spirogya before and after several weeks of the water solution. Which of the following graphs best illustrates likely result of the experiment

Carbohydrates are equal, protiens lower after, lipids equal, nucleic acids lower after

Bacterial phages are viruses that infect bacteria based on the results which of the following types of molecules to the back to your page is most likely inject into the bacteria cells

DNA

Figure one is a diagram of water molecules at the air water interface of the surface of a pond. FaceTime figure one which of the following best describes how the properties of water and air water interface enable an insect to walk on the surface of water

Hydrogen bonds between molecules of the surface of water provide service tension which allows the water surface to the form but not break under the insect

Which of the following is responsible for the cohesive property of water

Hydrogen bonds between oxygenatoms of one water molecule and a hydrogen atom of another water molecule

Which of the following is most directly responsible for waters unique properties

It forms hydrogen bonds

Pollio peptides are continuously being formed and degraded one of these processes are shown which statement is most accurate description of reaction in figure 1

It represents a polypeptide chain that is broken down through Hydrolisis reaction

The molecular structure of Linoleic acid and Palmatic acid, two naturally occurring substances are shown in the figure. Based on the molecular structure shown in the figure which molecule is likely to be solid at room temperature

Palmatic acid because the absence of carbon to carbon bonds allows the molecules to pack closely together

Which of the following correctly illustrates the diptide an amino acid in the optimal position for tripetide

The answer is a, it starts with an H connected to an N and underneath the n an h, and the second acid starts with an H connected to an n and above is an H this makes no sense but OK

The carbohydrates glucose glatactose and fructose have the same chemical formula (C6 H12 O6) but different structural formulas as represented in the figure. Which of the following statements about glucose glacatose and fructose is most likely to be true

The carbohydrates have different properties because they have different arrangements of carbon hydrogen and oxygen atoms

Researchers compared similar proteins from related organisms in different habitats. They found that the proteins from organisms living in harsh Environments had a greater number of Cystine amino acids then did proteins from organisms not living in harsh environments. The structure of Cystine is shown. Bonds conform between the sulfur atom of different Cystine amino acids. (S-s bonds). Which of the following best describes the effect of a greater number of Cystine amino acids on the stability of proteins

The change leads to increased proteins stability because of an increased number of s-s bonds in the tertiary structure of the proteins.

Figure one represents a common process that occurs in organisms. Which of the following is an accurate description of the process shown in figure 1.

The formation of a covalent peptide bond in a dehydration synthesis reaction

Water in ammonia react to form hydrogen bonds as represented in the figure. Which statement best helps explain the formation of the hydrogen bonds represented in the figure

The nitrogen has a partial negative charge, and the hydrogen attached to the oxygen has a partial positive charge

The synthesis of protein or carbohydrate Polymers always produces which of the following as a byproduct

Water