2025 Questions and Answers 100% Pass
What are the 7 characteristics of life? - ✔✔1. Cellular organization
2. Response to stimuli
3. Homeostasis
4. Metabolism
5. Growth and Development
6. Reproduction
7. Change through Time
What is the hierarchy of life? What is the first thing within this hierarchy that is
considered living? - ✔✔Atom --> Molecule --> Organelles--> Cells--> Tissue--> Organs
and Organ Systems--> Organisms--> Population--> Communities--> Ecosystem--> The
Biosphere
Cells
What are the most abundant elements in the human body? - ✔✔Oxygen
Do polar and nonpolar things mix? What types of things can passively diffuse across
the plasma membrane? - ✔✔No; small and nonpolar molecules can easily get passed
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, 1. Are ions able to passively diffuse across the plasma membrane or do they need help?
- ✔✔They need help
1. What are the 4 macromolecules that make up cells? - ✔✔1. Nucleic acids
2. Lipids
3. Proteins
4. Carbohydrates
1. What organelles are found within cells? - ✔✔1. Nucleus
2. Cell Membrane
3. Cytoplasm
4. Chloroplast
5. Cell Wall
6. Ribosomes
7. Endoplasmic Reticulum
8. Mitochondria
9. Golgi Complex
10. Vacuole
11. Lysosome
1. Why is water a polar molecule? - ✔✔Because one side of the molecular is a different
charge than the other.
What type of bond hold 1 water molecule together - ✔✔Covalent bonds
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