cell physiology, introduction and study tips

Prokaryotes: No membranous organelles; basic components include Capsule/Cell Wall, Cytoplasmic Membrane, Cytoplasm, Nucleoid, Ribosomes, Pili, Flagella.
Eukaryotes: Complex with organelles; evolution includes endosymbiosis leading to mitochondria and other features.

There are > $(2 \times 10^6)$ known eukaryotic species.
Eukaryotes trace a ~ $2 \times 10^9$ -year history; modern diversity stems from a 2-billion-year lineage with key endosymbiotic events.
Endosymbiosis is a major topic: mitochondria and other organelles originated from bacterial symbionts.

Goal: Sequence life for the future of life.
Structure: Pilot nodes and phased work streams; Phase I → Phase II → Phase III planning.
Phases and years: Phase I (Y1–Y3), Phase II (Y4–Y9), Phase III (Y10+).
Standards and coordination: Includes organizations like GIGA, 1KP, 10KP, G10K, GGBN, GGI, etc.
Scale/costs (illustrative): ${600{,}}000{,}000$ (Phase I), ${1.6{,}}000{,}000$ (Phase II), ${2.5{,}}000{,}000$ (Phase III).

Title/credit: Course in Cell Physiology and Hematology; Time: Lecture $3$ hrs/week; Large Group $2$ hrs; Total $75$ clock hours; Credits $4.0$ ; Prerequisites: None.
Key objectives (essentials):
- Differentiate homeostatic mechanisms regulating physiological balance.
- Distinguish cellular organelles and their functions.
- Understand membrane transport properties.
- Differentiate DNA replication, RNA transcription, and protein translation.
- Understand cell cycle control in mitosis and meiosis.
- Compare signal transduction mechanisms for intracellular communication.
- Differentiate blood cell types, hemoglobin physiology, and hemostasis.
Assessment: 3 tests (each $18\%$ ), final exam $40\%$ , assignments $6\%$ ; tests/final are in-person via Cygnet (on student laptops).

PH5208: Neurophysiology – Neural signaling, autonomic control, sensory systems, CNS integration, motor control, higher brain functions.
PH5306: Neuroendocrinology, GI & Reproductive Physiology – Neuroendocrine mechanisms, reproductive/GI thermoregulation, hormonal feedback.
PH5405: Cardiovascular, Respiratory & Renal Physiology – Ventilation, circulation, kidney function; integrative regulation.
MI5303: Medical Microbiology I – Infections across systems; basics of immunology and immunologic disorders.

Biochemistry texts include Ferrier’s overview of metabolism and gene expression, with chapters on nucleic acids and protein synthesis.
Additional physiology/biochemistry references emphasize metabolic pathways, enzyme function, and membrane biology.

In-person testing only; no remote testing.
Course requires active participation and consistent study; emphasis on practical application and problem-solving.

Definition: Retrieval of information from memory without aid; an active recall process.
Core claim: Retrieval practice yields greater long-term retention than restudying or rereading.
Mechanism: Effortful recall strengthens memory traces; aligns with Hebb’s rule (neurons that fire together wire together).
Benefits: Improved recall weeks/months later; enhanced ability to transfer knowledge to novel situations; better meta-memory (self-awareness of knowledge gaps).
Neural correlates: Increased activity in hippocampus regions (anterior/posterior) and medial prefrontal cortex during retrieval; stronger target reactivation and memory updating.
Practice tips: Use blank scrap paper; deliberate, effortful retrieval; progress may feel slow but yields better long-term learning.

RP improves class exam performance by approximately $10\%-15\%$ compared with control conditions.
fMRI shows greater hippocampal activation during retrieval, corresponding to better retention.
RP supports memory updating and better integration of new information with existing knowledge.
RP enhances transfer of knowledge to novel contexts, not just recall.

Spacing effect: Space study sessions by at least $24\text{ hours}$ ; sleep consolidates memory.
Interleaving: Alternate topics/subjects to strengthen retrieval and differentiate concepts.
Memory consolidation: Sleep supports long-term memory; avoid cramming; plan distributed practice.

Use retrieval practice in all courses; do not rely solely on rereading.
Space study sessions; plan over days/weeks for key topics.
Interleave topics to deepen understanding and improve transfer.
Maintain primary study habits: time management, minimal multitasking, asking questions, setting schedules, taking notes, learning from mistakes, group study when helpful, and protecting sleep.
Leverage curiosity to engage dopaminergic pathways and enhance encoding.

Retrieval practice, spaced and interleaved study, and mindful sleep are central to durable, transferable learning in physiology and biomedicine.

cell physiology, introduction and study tips ￼