Cell membrane (plasma membrane): The semi-permeable barrier composed mainly of phospholipids and proteins that surrounds the cell, regulating the entry and exit of substances. Alberts et al. (2002) describe it as a dynamic structure essential for maintaining cellular integrity and communication.
Nucleus: The membrane-bound organelle that contains the cell’s genetic material (DNA). It controls cellular activities through gene expression. Watson and Crick (1953) identified DNA as the genetic material housed within the nucleus.
Mitochondria: Double-membraned organelles responsible for energy production via ATP synthesis. Margulis (1970) proposed the endosymbiotic theory, suggesting mitochondria originated from free-living bacteria.
Endoplasmic reticulum (ER): A network of membranous tubules involved in protein and lipid synthesis. Palade (1955) first described the rough ER's role in protein synthesis, highlighting its ribosome attachments.
1. What is the mitochondrion in a cell?
2. On what basis are epithelial tissue types classified according to the content?
3. What is the primary role of hematopoiesis in blood and hematopoietic function?
Cell membrane — role?
Regulates substance entry and exit.
Nucleus — function?
Houses genetic material, controls activities.
Mitochondria — function?
Produce ATP for energy.
Endoplasmic reticulum — role?
Synthesizes proteins and lipids.
Lysosomes — function?
Digest cellular waste and materials.
Cell cycle — phases?
G1, S, G2, M phases.
It covers the core concepts of Fundamentals of Human Body Systems, organized by topic with the key definitions, explanations and takeaways, so it's easier to learn and remember.
Read the full study guide →The practice quiz has 10 multiple-choice questions, each with an explanation. Use it to check what you know and find your gaps.
Take the quiz (10 questions) →There are 20 flashcards on Fundamentals of Human Body Systems, with a question on the front and the answer on the back. Try to recall each answer before you flip, and let spaced repetition bring back the ones you miss.
See all 20 flashcards →Upload a PDF or paste your notes. Revizly writes a study guide, a practice quiz and flashcards in about a minute.