Register Log in

Microbiology Flashcards and Study Decks

academic

63 resources

Study microbiology concepts using flashcards designed for quick revision and better retention. These flashcards focus on key topics such as microbial structures, disease mechanisms, immune responses, and important terminology.

Explore microbiology flashcard decks that help you review concepts like bacterial classification, viral life cycles, antigen-antibody interactions, and antimicrobial drugs. Flashcards are ideal for reinforcing knowledge and preparing efficiently for exams.

For deeper understanding, you can also browse study notes and documents or practice with step-by-step questions and solutions to improve your understanding of microbiological concepts.

63resources

Resource Type

All Resources Documents Homework Answers Flashcard Decks

Flashcard Deck:

USMLE - Micro AntiMicrobials

These antibiotics — Penicillin, Methicillin, Ampicillin, Piperacillin, Cephalosporins, Aztreonam, and Imipenem — prevent bacterial cell wall formation by inhibiting peptidoglycan cross-linking, leading to cell lysis and death.

Flashcard Deck:

USMLE - Micro Systems

The skin’s normal dominant flora is Staphylococcus epidermidis, a non-pathogenic bacterium that helps protect against harmful microbes by competing for space and nutrients.

Flashcard Deck:

USMLE - Micro Viruses

Reassortment occurs when viruses with segmented genomes exchange genetic segments, creating new combinations. This can lead to rapid evolution, high-frequency recombination, and potentially global pandemics. A common example is the influenza virus.

Flashcard Deck:

USMLE - Micro Parasites

The movement of molecules against their concentration gradient, from low to high concentration, using energy from ATP.

Flashcard Deck:

USMLE - Micro Mycology

Includes Histoplasma, Blastomyces, Coccidioides, and Paracoccidioides, which cause pneumonia and systemic dissemination

Flashcard Deck:

USMLE - Micro Bacteria

Identification begins with the catalase test: catalase-negative indicates Streptococcus, catalase-positive indicates Staphylococcus. Staph aureus is coagulase-positive, while S. epidermidis (novobiocin-sensitive) and S. saprophyticus (novobiocin-resistant) are coagulase-negative.

Flashcard Deck:

USMLE - Micro Basic

Peptidoglycans are composed of a sugar backbone (N-acetylglucosamine and N-acetylmuramic acid) with peptide side chains cross-linked by transpeptidase. They provide structural support and protect bacteria from osmotic lysis.

Flashcard Deck:

USMLE - Reproduction Part 4

Cryptorchidism is the failure of one or both testes to descend into the scrotum, often seen in premature infants. It leads to impaired spermatogenesis due to higher abdominal temperatures but usually normal testosterone if unilateral. It is associated with an increased risk of germ cell tumors, and ...

Flashcard Deck:

USMLE - Reproduction Part 3

Male genital development is initiated by the SRY gene, which produces testes-determining factor, leading to testis formation. Sertoli cells secrete Müllerian Inhibitory Factor (MIF) to suppress female duct development, while Leydig cells produce testosterone, promoting the development of mesonephric...

Flashcard Deck:

USMLE - Reproduction Part 2

**Cleft Lip** is a congenital anomaly resulting from the **failure of fusion between the maxillary and medial nasal processes** during embryonic development. This defect affects the formation of the **primary palate**, leading to a gap or split in the upper lip, which may be unilateral or bilateral.

Flashcard Deck:

USMLE - Reproduction Part 1

Produced at the base of limbs in the zone of polarizing activity (ZPA), Shh patterns the anterior-posterior axis and is crucial for central nervous system (CNS) development. Mutations can result in holoprosencephaly, a failure of forebrain division.

Flashcard Deck:

USMLE - Pharm Part 2

Suffix for penicillin antibiotics, which inhibit bacterial cell wall synthesis by blocking transpeptidase enzymes, leading to cell lysis.

Flashcard Deck:

USMLE - Pharm Part 1

Describes the relationship between enzyme velocity (v) and substrate concentration ([S]) using the equation v = (Vmax[S])/(Km + [S]). Vmax reflects enzyme capacity, while Km indicates substrate affinity (lower Km = higher affinity). The graph is hyperbolic in shape.

Flashcard Deck:

USMLE - Pathology Part 2

A glycoprotein enzyme produced by prostate epithelial cells that liquefies semen. PSA levels are elevated in prostate carcinoma, BPH, and prostatitis. It is used mainly to monitor prostate cancer progression or recurrence, while its screening utility is controversial due to low specificity.

Flashcard Deck:

USMLE - Pathology Part 1

Apoptosis is programmed cell death that occurs in a controlled, energy-dependent manner, requiring ATP and mediated by caspases. It is characterized histologically by cell shrinkage, nuclear fragmentation, and formation of apoptotic bodies without triggering inflammation. Dead cells are cleared by p...

Flashcard Deck:

USMLE - Nutrition

Water-soluble vitamins generally wash out of the body easily through urine, requiring regular intake. However, vitamin B12 and folate (B9) are exceptions, as they are stored in the liver and can be retained for longer periods.

Flashcard Deck:

USMLE - Musculoskeletal and Connective Tissue Part 2

Osteopetrosis is a bone disorder caused by defective osteoclast function, leading to abnormally dense, brittle bones. It typically shows low serum calcium, normal phosphate and PTH, and elevated ALP. Bones appear thickened and sclerotic on imaging.

Flashcard Deck:

USMLE - Musculoskeletal and Connective Tissue Part 1

The Unhappy Triad is a common knee injury in contact sports, typically caused by a lateral force to a planted leg. It involves tears of the ACL, MCL, and meniscus (classically medial, though lateral is more often injured). Treatment often includes surgical ACL reconstruction.

Flashcard Deck:

USMLE - Metabolism Part 2

Phenylketonuria (PKU) is caused by a mutation in the enzyme phenylalanine hydroxylase, leading to an inability to convert phenylalanine to tyrosine. As a result, phenylalanine accumulates, and tyrosine becomes an essential amino acid. It is inherited in an autosomal recessive pattern and leads to ex...

Flashcard Deck:

USMLE - Metabolism Part 1

Glycolysis is a 10-step metabolic pathway that breaks down glucose into pyruvate, producing ATP and NADH. Key regulatory enzymes include hexokinase/glucokinase, phosphofructokinase (PFK), and pyruvate kinase. The pathway splits glucose into two molecules of G3P, which are further processed to genera...

Flashcard Deck:

USMLE - Immune System Part 2

Anergy is a state where self-reactive lymphocytes become functionally inactive when they encounter antigen without proper costimulation.

Flashcard Deck:

USMLE - Immune System Part 1

Innate immunity uses germline-encoded receptors to detect pathogens quickly and nonspecifically.

Flashcard Deck:

USMLE - Hematology/Oncology Part 3

Glucose-6-phosphate dehydrogenase (G6PD) deficiency is an X-linked enzymatic disorder more common in African American males.

Flashcard Deck:

USMLE - Hematology/Oncology Part 2

Skull X-ray may show a "crew-cut" appearance due to marrow expansion from increased erythropoiesis.

Flashcard Deck:

USMLE - Hematology/Oncology Part 1

Red blood cells (erythrocytes) have a lifespan of approximately 120 days.

Flashcard Deck:

USMLE - Genetics

It presents with microcephaly, intellectual disability, high-pitched crying (like a cat), and epicanthal folds. There's also an increased risk of cardiac abnormalities, especially ventricular septal defect (VSD).

Flashcard Deck:

USMLE - Respiratory Part 2

Cartilage is present in the trachea and continues through the bronchi, providing structural support. However, it disappears at the level of the bronchioles, where the airway becomes more flexible and muscular.

Flashcard Deck:

USMLE - Respiratory Part 1

The conducting zone includes structures that transport air but do not participate in gas exchange.

Flashcard Deck:

USMLE - BioChem Part 2

Histone acetylation relaxes DNA coiling by neutralizing positive charges on histones, reducing their interaction with negatively charged DNA. This opens up chromatin structure, allowing transcription to occur.

Flashcard Deck:

USMLE - BioChem Part 1

An autosomal dominant disorder with incomplete penetrance, characterized by hamartomas in the CNS and retina, cutaneous angiofibromas (adenoma sebaceum), ash-leaf spots, seizures, mental retardation, mitral regurgitation, cardiac rhabdomyomas, renal angiomyolipomas, and increased risk of astrocytoma...

Flashcard Deck:

USMLE - Renal Part 2

Aldosterone acts on the distal nephron to increase Na⁺ reabsorption, while promoting secretion of K⁺ and H⁺ ions. This helps regulate blood volume, pressure, and electrolyte balance.

Flashcard Deck:

USMLE - Renal Part 1

Unlike ACE inhibitors, ARBs (e.g., losartan) block the angiotensin II receptor directly and do not inhibit bradykinin breakdown. As a result, they do not cause cough or angioedema, common side effects seen with ACE inhibitors.

Flashcard Deck:

USMLE - Behavioral Sciences

This bias occurs when early detection (e.g., through screening) appears to increase survival time, but in reality, the patient’s overall lifespan is not changed — the disease is just diagnosed earlier

Flashcard Deck:

USMLE - Endo Part 2

Mechanism of Action (MoA): Inhibits thyroid peroxidase, blocking oxidation and organification of iodide, and coupling of iodotyrosines → ↓ thyroid hormone synthesis.

Flashcard Deck:

USMLE - Endo Part 1

The thyroid diverticulum originates from the floor of the primitive pharynx and descends into the neck. It remains temporarily connected to the tongue via the thyroglossal duct, which usually involutes but may persist as a pyramidal lobe of the thyroid.

Flashcard Deck:

USMLE - Derm

Sebaceous glands are holocrine glands, meaning they release their contents through cell rupture. They secrete sebum, an oily substance that lubricates skin and hair, and are typically associated with hair follicles.

Flashcard Deck:

USMLE - Cardiology Part 3

Hypertrophic Obstructive Cardiomyopathy (HOCM) involves a hypertrophied interventricular septum that impedes aortic outflow by obstructing the mitral valve during systole.

Flashcard Deck:

USMLE - Cardiology Part 2

The ST segment represents the period when the ventricles are fully depolarized but have not yet begun repolarization

Flashcard Deck:

USMLE - Cardiology Part 1

Most sympathetic postganglionic neurons release norepinephrine, but sweat glands are an exception — they are innervated by cholinergic (acetylcholine-releasing) fibers

Flashcard Deck:

USMLE - Autonomic Drugs Part 3

This deck primarily acts on α1, α2, and β1 receptors, with a stronger effect on α-receptors.

Showing 1 to 40 of 63 results