Answer:
Interaction between hydrophobic (nonpolar) amino acid side chains is due to hydrophobic interactions.
Repulsion between negatively charged backbone of DNA double helix is due to electrostatic repulsion forces.
Interaction between water and carbonyl oxygen of guanine is due hydrogen bonding
Explanation:
The hydrophobic effect refers to the tendency of non-polar substances forms aggregates in an aqueous solutions in order to avoid interactions with water molecules. This results in a favorable entropy increase.
For non-polar amino acids, hydrophobic interactions are important in stabilizing their structure wherein they are densely packed within the core of a protein while those with with polar groups are found in the exterior.
The phosphate backbone of DNA is negatively charged. Since like charges repel, therefore, electrostatic repulsion forces of the ions are responsible the repulsion of the backbone DNA double helix.
Hydrogen bonds are formed between electronegative oxygen atoms and hydrogen atoms of neighboring molecules due to the partial negative and positive charges on each of the atoms.
This hydrogen bonding is responsible for the interaction between water and carbonyl oxygen of guanine as the hydrogen atoms of the water molecules are attracted to the oxygen atoms of the guanine molecules due to the partial charges on each of the atoms.
Answer:
Primary succession.
Explanation:
Ecological succession refers to the changes involved in the species structure of a community that is established in a particular habitat over time. The succession is of two types: the primary succession and secondary succession.
When the succession takes place on the barren land then succession is considered primary succession.
In the given question, the moss invades and colonizes the rocks and breaks them into the soil. Here the moss species is known as the pioneer species and since the moss grows on the barren rock, therefore, is considered the primary succession.
Thus, primary succession is correct.
A curvy figure is not a universally accepted sign of physical attractiveness. Therefore option “B” is correct.
It is the measure of the degree to which a person can look and aesthetic pleasing. Facial symmetry and sociocultural and personal choices of a person are evaluating factors.
Facial symmetry is based on the symmetry of the face of a person and youthfulness. It helps in determining the beauty of a person.
Sociocultural depend on how a person combines both social and cultural factors. Factors affecting are such as personal beliefs, and values. Personal choices vary from person to person as everyone has different choices.
Physical attractiveness is the evaluation of the physical appearance of a person.
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Answer:The answer is B.curvy figure
Explanation:
B) The enzymes of glycolysis are located in the cytosol of the cell.
C) Glycolysis can operate in the complete absence of O2.
D) The end products of glycolysis are CO2 and H20.
E) Glycolysis makes ATP exclusively through substrate-level phosphorylation.
Answer:
D
Explanation:
The end product of glycolysis is pyruvate. This process occurs in the cytosol of the cell in the absence of oxygen and has a net ATP production of 2 and 2 NADH. When there is no oxygen, the pyruvate is converted to lactic acid. When there is oxygen , the pyruvate is channeled to the Krebs cycle in the mitochondria where it is used to produce more ATP. The formation of ATP in glycolysis is powered by the energy in the bonds of the molecules (substrate-level phosphorylation). This is unlike in Krebs cycle where most of ATP are formed through oxidative phosphorylation. The end products of Krebs cycle is CO₂ and H₂O.
All of the following statements about glycolysis are true except the one that states- The end products of glycolysis are CO2 and H2O. So the correct option is option D.
The glycolysis process can take place when there is oxygen present (aerobic) or when there is no oxygen present (anaerobic). Pyruvate is transformed into lactic acid in anaerobic conditions. The fact that glycolysis occurs widely in other species suggests that it is an old metabolic pathway.
Glycolysis in most cells takes place in the cellular cytosol. The process of glycolysis can be divided into two stages: the investment stage, in which ATP is initially consumed, and the yield stage, in which more ATP is eventually produced.
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O Broca's area
Wernicke's area
Motor cortex
Cerebellum
Wernicke's area is most likely to have been damaged in Fatima's case.
The area of Fatima's brain most likely to have been damaged is Wernicke's area. Wernicke's area is responsible for the comprehension and production of spoken and written language. Damage to this area can result in difficulties understanding spoken language, as in Fatima's case. This area is located in the left hemisphere of the brain, near the auditory cortex.
Answer:
Complex carbohydrates, also known as polysaccharides
Explanation:
B.) Solids have more energy than plasma
C.) Solids have the most amount of energy
D.) Solids have the least amount of energy
Answer:
The answer is D.) Solids have the least amount of energy
Explanation:
Because in a solid, particles are packed tightly together so they don't move much. The electrons of each atom are constantly in motion, so the atoms have a small vibration, but they are fixed in their position. Because of this, particles in a solid have very low kinetic energy.
Solids have the least amount of energy among the four physical states of matter because their particles are held tightly together and can only vibrate, possessing less thermal energy than in the liquid, gas, or plasma states.(Option D)
The correct statement about the energy level of solids is that solids have the least amount of energy among the four physical states of matter. In a solid, the atoms or molecules are held close together by strong intermolecular forces, which significantly restricts their ability to move. As a result, the particles can only vibrate about fixed positions, and this vibrational motion accounts for the thermal energy in solids.
This is less energy than the particles have in liquid, where they can move freely but are still close together, and much less than in gas, where the particles have enough energy to break away from one another and fill the available space. In plasma, which is an ionized state with even higher energy, particles have the most energy compared to the other states of matter.
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