Q: What are the building blocks of peptides? Read this paragraph and choose the correct option from the provided answers: A peptide is composed of two or more amino acids. Amino acids are the building blocks of peptides. Choices: - alkali - magnets - rocks - amino acids A:
amino acids

(Question)
Q: What is the sac-like organ at the end of the esophagus? Read this paragraph and choose the correct option from the provided answers: The stomach is a sac-like organ at the end of the esophagus. It has thick muscular walls. The muscles contract and relax. This moves the food around and helps break it into smaller pieces. Mixing the food around with the enzyme pepsin and other chemicals helps digest proteins. Choices: - rectum - larynx - appendix - stomach A:
(Answer)
stomach

Ques: Q: What are the taste receptors found as tiny bumps on the tongue called? Read this paragraph and choose the correct option from the provided answers: Taste receptors are found in tiny bumps on the tongue called taste buds (see Figure below ). There are separate taste receptors for sweet, salty, sour, bitter, and meaty tastes. The meaty taste is called umami . You can learn more about taste receptors and the sense of taste by watching the animation at the following link: http://www. bbc. co. uk/science/humanbody/body/factfiles/taste/taste_ani_f5. swf . Choices: - ear buds - fat buds - hard buds - taste buds A:
Ans: taste buds

(Q).
Q: What science is the study of matter and the changes it undergoes? Read this paragraph and choose the correct option from the provided answers: Chemistry is the study of matter and the changes it undergoes. Choices: - biology - geology - astronomy - chemistry A:
(A).
chemistry

Ques:Q: What type of blood cells transport oxygen to the tissues so they can function? Read this paragraph and choose the correct option from the provided answers: Red blood cells transport oxygen to the tissues so they can function. In the absence of oxygen, cells cannot carry out their biochemical responsibilities. Oxygen moves to the cells attached to hemoglobin, a protein found in the red cells. In cases of carbon monoxide poisoning, CO binds much more strongly to the hemoglobin, blocking oxygen attachment and lowering the amount of oxygen reaching the cells. Treatment involves the patient breathing pure oxygen to displace the carbon monoxide. The equilibrium reaction shown below illustrates the shift toward the right when excess oxygen is added to the system:. Choices: - white blood cells - mutated blood cells - depleted blood cells - red blood cells A:

Ans:red blood cells

Ques: Q: Sucrose does not undergo reactions that are typical of aldehydes and ketones, therefore it is a nonreducing what? Read this paragraph and choose the correct option from the provided answers: solution. In addition, sucrose does not undergo reactions that are typical of aldehydes and ketones. Therefore, sucrose is a nonreducing sugar. The hydrolysis of sucrose in dilute acid or through the action of the enzyme sucrase(also known as invertase) gives an equimolar mixture of glucose and fructose. This 1:1 mixture is referred to as invert sugar because it rotates plane-polarized light in the opposite direction than sucrose. The hydrolysis reaction has several practical applications. Sucrose readily recrystallizes from a solution, but invert sugar has a much greater tendency to remain in solution. In the manufacture of jelly and candy and in the canning of fruit, the recrystallization of sugar is undesirable. Therefore, conditions leading to the hydrolysis of sucrose are employed in these processes. Moreover, because fructose is sweeter than sucrose, the hydrolysis adds to the sweetening effect. Bees carry out this reaction when they make honey. The average American consumes more than 100 lb of sucrose every year. About twothirds of this amount is ingested in soft drinks, presweetened cereals, and other highly processed foods. The widespread use of sucrose is a contributing factor to obesity and tooth decay. Carbohydrates such as sucrose, are converted to fat when the caloric intake exceeds the body's requirements, and sucrose causes tooth decay by promoting the formation of plaque that sticks to teeth. Choices: - wheat - juice - salt - sugar A:
Ans:
sugar