Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Biology 1-6
| Question | Answer |
|---|---|
| What is the basic unit of life? | The Cell |
| Be able to list and describe the characteristics of life. | Cells → Tissues → Organs → Systems → Organism |
| What is science? | A systematic approach to understanding the natural world through observation |
| Define hypothesis. | A testable |
| How do hypotheses differ from theories? | Hypothesis: Tentative explanation; narrow in scope.; Theory: Broad explanation supported by extensive evidence. |
| What are the steps of the scientific method? | Observation Question: Hypothesis Experiment Data Collection Analysis Conclusion |
| What are the levels of organization of life? | Atom → Molecule → Organelle → Cell → Tissue → Organ → Organ System → Organism → Population → Community → Ecosystem → Biosphere |
| Discuss harmful aspects of radioisotopes. | Can damage cells and DNA; May cause cancer |
| Discuss beneficial uses for radioisotopes. | Medical imaging (PET scans |
| Why should you not say all chemicals are safe or that all chemicals are dangerous? | Toxicity depends on dose and context |
| Do humans need to do detox diets | No. The liver and kidneys naturally detoxify the body. |
| Can drinking too much water kill someone? | Yes, Water intoxication Death |
| What do PET scans detect? | Imaging technique that uses radioisotopes to detect metabolic activity in the body.; Use: Detect cancer |
| Define cohesion. | Holding Hands; Attraction between molecules of the same substance. |
| Define and be able to apply the term base. | Substance that reduces H+ concentration; pH > 7. |
| What values on a pH scale are basic? | Acidic: 0–6 (more H⁺ ions); Neutral: 7 (pure water); Basic (alkaline): 8–14 (more OH⁻ ions) |
| Define base. | A substance that accepts H⁺ ions; pH > 7. |
| What pH is basic? | Above 7. |
| What are the major functions of lipids in the body? | Phospholipids (with hydrophilic heads and hydrophobic tails forming the bilayer). |
| Therapeutic drugs primarily target which class of macromolecules? | Proteins |
| What is glycogen and what is it’s function? | A branched polysaccharide used for energy storage in animals. stored in liver and muscles. |
| A genetic mutation would impact what level(s) of protein structure? | Primary → which can also change secondary |
| What are enzymes classified as? | Proteins |
| What type of lipid is testosterone? | A steroid lipid. |
| What type of lipid is cholesterol? | A steroid lipid. |
| Anabolic steroids mimic which molecule? | Testosterone |
| What is the function of mitochondria? | ATP energy production (plants + animals) |
| What structures are unique to prokaryotic cells? | No nucleus; no membrane-bound organelles; nucleoid region. |
| What structures are unique to eukaryotes? | Nucleus, mitochondria, ER, Golgi, etc. |
| What structures to plant and animal cells have in common? | Nucleus, mitochondria, ER, ribosomes, cytoplasm, membrane. |
| What does ANIMAL CELLS HAVE Plants do not Have? | no cell wall, no chloroplasts, small vacuoles. |
| What organelle would be in abundance when active transport is needed to occur at high amounts? | Mitochondria |
| Immune cells like macrophages use what method of endocytosis to take in and destroy pathogens? | Macrophages use phagocytosis to engulf pathogens |
| Sweat and tears are the result of which cellular process? | Exocytosis |
| Why do plants go limp in dry soil? | Lose water by osmosis (become flaccid) |
| To increase blood volume | you would want to use what type of IV bag? Isotonic |
| What is an enzyme and how are they named? | Protein catalyst; often end in -ase (e.g. |
| What is energy? | Catalytic protein; named ending in -ase. |
| What is chemical energy | Energy stored in chemical bonds. |
| What form of energy do we store energy as in food? | Chemical Energy |
| How is ATP used by cells to get energy to do work? | ATP loses a phosphate group through hydrolosis and makes ADP; Breaks off a phosphate → releases energy. |
| What is the final electron acceptor in the electron transport chain? | Oxygen (O₂). |
| What is fermentation? How does it work in humans? | Converts pyruvate to lactic acid when oxygen is unavailable; Anaerobic ATP production.; In humans: produces lactic acid. |
| What metabolic pathway is shared by both fermentation and aerobic cellular respiration? | Glycolysis (occurs in both aerobic and anaerobic respiration). |
| Why do we breathe? How does this relate to cellular respiration? | To supply O₂ for cellular respiration and remove CO₂ produced as waste. |
| What does photosynthesis do for a plant? | Produces glucose for energy and releases oxygen. |
| Why are leaves green? | Chlorophyll reflects green wavelengths of light. |
| What color of light is least useful to plants because it is reflected or transmitted from the plant? | Green light. |
| What are the reactants of photosynthesis? | CO₂ + H₂O + sunlight Carbon and Water |
| Saturated | No double bonds; straight chains; solid at room temp; tightly packed |
| Unsaturated | One or more double bonds; kinks in chains; liquid at room temperature |
| What do PLANT CELLS HAVE Animal do not have? | cell wall, chloroplasts, large vacuole. |
| What is Hypotheses? | Tentative explanation; narrow in scope. |
| What is Theories? | Broad explanation supported by extensive evidence. |
Created by:
user-2005473
Popular Biology sets