Question

1. what type of macromolecule is the dna that is found in corn? a. carbohydrate b. protein c. lipid d. nucleic acid
2. the digestive systems purpose is to break down and absorb nutrients. what structures, such as the stomach, make up the digestive system? a. organelles b. tissues c. organs d. cells
3. corn can be sweet and juicy. what cell organelle is responsible for making the sugar in corn? a. mitochondria b. nucleus c. ribosomes d. chloroplast
4. what cell organelle is the dna in corn found in? a. nucleus b. cytoplasm c. ribosomes d. golgi apparatus
5. starch must be broken down into smaller parts to be absorbed into your body. using this information, what is starch considered to be? a. monomer b. polymer
6. corn contains a lot of carbohydrates. how does your body use those carbohydrates? a. as enzymes b. energy c. cell membrane and insulation d. genetic information
7. why can humans ultimately not digest the molecule cellulose? a. humans do not have an enzyme that matches the cellulose molecule b. humans have too many enzymes that match with the cellulose molecule c. humans do not get any energy out of it d. humans do not eat corn
8. what temperature has the highest level of enzyme activity? a. 37°c b. 0°c c. 10°c d. 17°c
9. what may be one reason why humans natural body temperature is 37°c (98.6°f)? a. humans eat more healthy food at 37°c b. humans are the most comfortable at 37°c c. human enzyme activity and breathing is the lowest at 37°c d. human enzyme activity and digestion is best at 37°c

Explanation:

1. DNA is a nucleic - acid. So for the question about the type of macromolecule DNA is, the answer is based on biological knowledge of macromolecules.
2. The digestive system breaks down food. Organs like the stomach are part of it.
3. Chloroplasts are responsible for making sugar in plant cells through photosynthesis.
4. DNA in a cell is mainly found in the nucleus.
5. Starch is a polysaccharide that needs to be broken down into smaller units (monosaccharides) for absorption.
6. Carbohydrates are mainly used for energy in the body.
7. Humans can't digest cellulose because they lack the appropriate enzyme.
8. Enzyme activity is highest at around 37°C which is also the human body's natural temperature as it is optimal for human enzyme - related processes like digestion.

Answer:

1. a. nucleic acid
2. a. organs
3. d. chloroplast
4. b. nucleus
5. a. monosaccharide
6. b. energy
7. a. Humans do not have an enzyme that matches the cellulose molecule
8. a. 37°C
9. c. Human enzyme activity and digestion is best at 37°C