Podcast
Questions and Answers
Which of the following is NOT a characteristic of living things?
Which of the following is NOT a characteristic of living things?
- Photosynthesis (correct)
- Growth
- Reproduction
- Cellular organization
Eukaryotic cells do not have membrane-bound organelles.
Eukaryotic cells do not have membrane-bound organelles.
False (B)
What term is used to describe the simplest form of a carbohydrate?
What term is used to describe the simplest form of a carbohydrate?
Monosaccharide
The ______ bond is critical for the properties of water.
The ______ bond is critical for the properties of water.
Match each type of pathogen to its description:
Match each type of pathogen to its description:
Flashcards
Cell Theory
Cell Theory
All living organisms are made up of one or more cells, the basic unit of life; all cells arise from pre-existing cells; all living things are made of cells.
Hydrogen Bond
Hydrogen Bond
A type of bond that forms between a hydrogen atom and a highly electronegative atom, such as oxygen or nitrogen. It is a weak bond, but important in many biological processes.
What is an element?
What is an element?
A substance that cannot be broken down into simpler substances by ordinary chemical means. Building blocks of everything else.
What is an atom?
What is an atom?
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What is a polymer?
What is a polymer?
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Study Notes
Unit 1 - Introduction to Biology
- Living things share several fundamental characteristics: growth, reproduction, response to stimuli, and energy use.
- The tree of life illustrates the evolutionary relationships among different species.
Unit 2 - The Chemistry of Life
- Atoms are the basic building blocks of matter.
- Matter can be classified as elements or compounds.
- Hydrogen bonds are weak attractions between a hydrogen atom and another atom, crucial for many biological processes.
- Water's unique properties, including polarity and high specific heat, are essential for life.
- pH measures the acidity or basicity of a solution, impacting biological systems.
Unit 3 - Diseases in Guatemala
- Develop a testable prediction about a phenomenon in Guatemala.
- Identify the factor you will change and the factor you expect to be affected; these are the independent and dependent variables respectively.
- Compare and contrast five types of pathogens (bacteria, viruses, fungi, parasites, and prions) based on their structure, how they cause illness, and how they are controlled.
Unit 4 - Macromolecules
- Carbon's unique ability to form four covalent bonds allows it to build a vast array of complex molecules.
- Polymers are large molecules formed by combining smaller units called monomers.
- Carbohydrates are crucial for energy storage and structural support.
- Lipids are diverse molecules with roles in energy storage, insulation, and cell membranes.
- Nucleic acids store and transmit genetic information.
- Proteins perform a wide range of functions, including structural support, catalyzing reactions, and transporting molecules.
Unit 5 - The Cell
- The cell theory states that all living things are composed of cells, the basic unit of life, and cells arise from pre-existing cells.
- Eukaryotic cells have a nucleus and membrane-bound organelles; prokaryotic cells do not.
- Animal cells and plant cells have similarities but differ in features like a cell wall, chloroplasts, and a large central vacuole.
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