Which macromolecule is made of only carbon and hydrogen?
Lipids
100
Substance A has a pH of 7. Substance B has a pH of 13.6. Substance C has a pH of 4.4. Which substance is basic?
Substance B. Any substance with a pH higher than 7 is basic.
100
Which organelle allows the passage of certain materials into or out of the cell?
cell membrane
100
What is the smallest level of organization?
Cells
200
DNA and RNA are examples of which macromolecule?
Nucleic acids
200
Provide an example of a neutral substance.
Water
200
Give an example of an organism that has eukaryotic cells inside of its body.
Plants or animals
200
Which organelle is responsible for breaking down food (sugar) to convert it to energy for the cell to use?
Mitochondria
200
Enzymes are an example of which macromolecule?
protein
300
Name the 3 parts of interphase in order
G1, S, and G2
300
Name the steps of the whole cell cycle in order.
Interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
300
Describe one similarity between eukaryotic and prokaryotic cells.
Answers may vary - 1) They both have DNA. 2) They both have a cell membrane, cytoplasm, or ribosome
300
Name an organelle that is only in animal cells
Either answer is acceptable: small vacuoles or lysosome
300
Name 5 of the characteristics of living things.
Answers must have at least 5 of the following characteristics: 1) Have cells. 2) Have DNA. 3) Can reproduce. 4) Must get energy and materials. 5) Grow and develop. 6) Responds to stimuli. 7) Maintains homeostasis. 8) Must evolve as a group of species
400
What chemical is used to test for the presence of sugars in foods?
Benedict's reagent or glucose test strips
400
Substance A has a pH of 6.1. Substance B has a pH of 10.4. Substance C has a pH of 13.8. Which substance is more basic?
Substance C. The higher the pH the more basic the substance.
400
Give an example of an organism that has prokaryotic cells inside of its body.
Bacteria
400
Name at least 2 organelles that are only found in the plant cell and not an animal cell.
Chloroplast, cell wall, and large vacuole.
400
Name the levels of organization in order from smallest to largest
cell -> tissue -> organ -> organ system
500
Which macromolecules are organic?
All of them - nucleic acids, proteins, lipids, and carbohydrates (because they all contain carbon)
500
Name the phases of mitosis in order
Prophase, metaphase, anaphase, and telophase
500
Name 3 differences between eukaryotic and prokaryotic cells
Prokaryotic cells are simpler, smaller, and reproduce faster than eukaryotic cells. Prokaryotic cells don't have a nucleus while eukaryotic cells do have a nucleus.
500
Describe the difference between a cell membrane and a cell wall
A cell membrane allows materials to enter or leave the cell. A cell wall provides protection for the cell.
500
A student tests mystery food for the presence of macromolecules. After adding iodine, the food turned blue-black. After adding biuret, it turned purple. There was no change in color when adding benedict's reagent. When rubbed on a brown paper bag, no marks were left. Which macrmolecules were present in the mystery food?