Biology semester - Study guides, Class notes & Summaries

IB Biology semester 1 Latest Version Graded A+ Cells Smallest functional unit of an organism What are the principles of cell theory? 1. All living things are made of cells 2. Cells are smallest unit of life 3. Cells come from pre-existing cells What are the properties of life? Metabolism Reproduction Growth Response Excretion Homeostasis Nutrition Prokaryotic cells Single cell which has neither a distinct nucleus or organelles can be an organism (e.g. bacteria) Flage...

AP Biology Semester 1 Review matter any substance in the universe that has mass and occupies space atoms small particles that make up all matter electrons negatively charged subatomic particles that are transferred and shared between atoms ion a charged particle acid any substance that dissociates in water to increase the concentration of H+ ions; pH values of acids are from 1-7 base any substance that combines with H+ ions when dissolved in water; pH values from ...

Honors Biology Semester 1 Final Exam Questions and Answers Already Passed What is the name of the process that breaks down glucose in the cytoplasm to produce a small amount of ATP and pyruvate? Glycolysis What is the term for the process by which cells maintain a stable internal environment despite external changes? Homeostasis What is the name of the fluid-filled space within the chloroplast that is surrounded by the thylakoid membrane? Stroma What is the term for the cel...

Honors Biology Semester 1 Final Exam Review with Complete Solutions What is the name of the protein complex that helps in the proper alignment and segregation of chromosomes during mitosis? Kinetochore What is the term for the process by which cells undergo programmed cell death to remove damaged or unneeded cells? Apoptosis What is the name of the organelle responsible for the synthesis and modification of ribosomal RNA? Nucleolus What is the term for the modification of...

AP Biology Semester 1 Review Latest Update Graded A+ 3 phases of transcription initiation, elongation, termination 3 steps of protein synthesis transcription, RNA processing, translation 5' cap The end of a pre-mRNA molecule modified by the addition of a cap A site One of a ribosome's three binding sites for tRNA during translation. Holds the tRNA carrying the next amino acid to be added to the polypeptide chain. acid any substance that dissociates in water to increase the c...

AP Biology Semester 1 Review matter any substance in the universe that has mass and occupies space atoms small particles that make up all matter electrons negatively charged subatomic particles that are transferred and shared between atoms ion a charged particle acid any substance that dissociates in water to increase the concentration of H+ ions; pH values of acids are from 1-7 base any substance that combines with H+ ions when dissolved in water; pH values from ...

Honors Biology Semester 2 Final Exam with Complete Solutions What is the role of helicase in DNA replication? Helicase unwinds the DNA double helix by breaking hydrogen bonds between base pairs, allowing replication to begin. How does complementary base pairing ensure accuracy during DNA replication? Complementary base pairing (A with T, C with G) ensures that each new strand is an exact copy of the original template. What is a codon, and how is it related to DNA? A codon is ...

Honors Biology Semester 1 Final Study Guide with Complete Solutions How do plasmodesmata function in plant cell communication? Plasmodesmata are channels that connect plant cells, allowing the transfer of water, nutrients, and signaling molecules between them. What is the significance of operons in prokaryotic gene regulation? Operons allow prokaryotes to regulate the expression of genes by controlling the transcription of multiple genes simultaneously. How does the secondary str...

Biology Semester Exam Questions With 100% Correct Answers ...

IB Biology Semester Exam 2024/2025