Answer the following question given this paragraph: A protein is an organic compound made up of small molecules called amino acids . There are 20 different amino acids commonly found in the proteins of living things. Small proteins may contain just a few hundred amino acids, whereas large proteins may contain thousands of amino acids. Q: What is an organic compound made up of small molecules called amino acids called? Choices: - a carbohydrate - a fat - a compound - a protein A:
a protein
Answer the following question given this paragraph: All carbon atoms have six protons. Most also have six neutrons, but some have seven or eight neutrons. What is the mass number of a carbon isotope that has seven neutrons?. Q: All carbon atoms have how many protons? Choices: - one - two - eight - six A:
six
Q: Answer the following question given this paragraph: The double helical nature of DNA, together with the findings of Chargaff, demonstrated the base-pairing nature of the bases. Adenine always pairs with thymine, and guanine always pairs with cytosine ( Figure below ). Because of this complementary nature of DNA, the bases on one strand determine the bases on the other strand. These complementary base pairs explain why the amounts of guanine and cytosine are present in equal amounts, as are the amounts of adenine and thymine. Adenine and guanine are known as purines . These bases consist of two ring structures. Purines make up one of the two groups of nitrogenous bases. Thymine and cytosine are pyrimidines , which have just one ring structure. By having a purine always combine with a pyrimidine in the DNA double helix, the distance between the two sugar-phosphate backbones is constant, maintaining the uniform shape of the DNA molecule. Q: What distinctive configuration of dna demonstrates the base-pairing nature of the bases? Choices: - single helix - double loop - triple helix - double helix A:
A: double helix
Question: Answer the following question given this paragraph: The Krebs cycle and electron transport occur in the mitochondria. The Krebs cycle takes place in the matrix, and electron transport takes place on the inner membrane. Q: Where does the krebs cycle take place? Choices: - in the nitrogen - in the ozone - in the beam - in the matrix A:
Answer: in the matrix
*Question*
Answer the following question given this paragraph: Metals are elements that are good conductors of electricity. They are the largest class of elements. Many metals are shiny, ductile, and malleable. They are also good conductors of heat. Almost all metals are solids are room temperature. Q: What is the largest class of elements? Choices: - organics - acids - oils - metals A:
**Answer**
metals
*Question*
Answer the following question given this paragraph: Genes play an important part in determining our adult height. However, factors such as poor nutrition can prevent us from achieving our full genetic potential. Q: What factor other than genes is important in determining adult height? Choices: - intelligence - cultivation - relaxation - nutrition A:
**Answer**
nutrition