Make it yours.Save notes, decks & boards to your own library.

openstem

Explore

Spaces

My Library

All fields Software Mathematics Physics Chemistry Biology Engineering Astronomy Environmental Other Biology Biology groups

Explore STEM Content

Search the community's STEM library — free to study, yours to make your own.

Biology

Cells, genetics, ecology and physiology on openstem — flashcards, notes, quizzes, sketches and flowcharts shared by the community. Study free, or clone anything into your library.

Content Groups1

Loading…

loading…

About Privacy Terms of Service© openstem

We use privacy-friendly product analytics (no session recording, PII masked) to improve OpenStem. Load analytics? Privacy Policy

openstem

Explore

Groups Favorites

Collections Notes Flashcards Quizzes Sketches Flowcharts Plots Molecules

Make it yours.Save notes, decks & boards to your own library.

Get started Sign in

Explore Groups Favorites

Biology: explore STEM content (page 34 of 50) · openstem

All fields Software Mathematics Physics Chemistry Biology Engineering Astronomy Environmental Other Biology Biology groups

Explore STEM Content

Search the community's STEM library — free to study, yours to make your own.

Biology

Cells, genetics, ecology and physiology on openstem — flashcards, notes, quizzes, sketches and flowcharts shared by the community. Study free, or clone anything into your library.

Content Groups1

Loading…

Collection5 items

01Biology · L1 · Match the Sound to the Animal

02Biology · L1 · Why Animals Make Sounds

03Biology · L1 · Animal Sounds in Nature Quiz

+2 more

Biology

Biology · L1 · Animal Sounds in Nature

@openstem

Biology · L1 · Animal Sounds in Nature

Flashcards10 cards

Why is the oxygen-hemoglobin dissociation curve sigmoidal rather than hyperbolic?1 / 10

Hemoglobin is a tetramer of four subunits, each with its own oxygen-binding heme group, and oxygen binding at one subunit induces a conformational shift (transitioning the whole tetramer from a low-affinity tense (T) state toward a high-affinity relaxed (R) state) that increases the oxygen affinity of the remaining subunits — positive cooperativity. This produces the sigmoidal curve: hemoglobin is relatively reluctant to bind the first oxygen molecule at low pO2, but affinity increases sharply as more subunits become bound, allowing hemoglobin to load oxygen efficiently across the sharp pO2 range found in the lungs while still unloading substantial oxygen across the more modest pO2 drop found in respiring tissue.

Biology

Biology · L4 · Hemoglobin, Gas Transport, and Hemostasis

@openstem

Biology · L4 · Hemoglobin, Gas Transport, and Hemostasis

Flowchart10 objects

Biology

Biology · L2 · From Two Alleles to a 3:1 Ratio

@openstem

Biology · L2 · From Two Alleles to a 3:1 Ratio

Flowchart5 objects

Biology

Biology · L1 · Parts of a Seed

@openstem

Biology · L1 · Parts of a Seed

Collection5 items

01Biology · L5 · Synaptic Plasticity

02Biology · L5 · Neurodegenerative Disease Mechanisms

03Biology · L5 · Synaptic Plasticity and Neurodegeneration

+2 more

Biology

Biology · L5 · Advanced Neuroscience

@openstem

Biology · L5 · Advanced Neuroscience

Flowchart11 objects

Biology

Biology · L2 · Cellular Respiration: Releasing Energy From Food · flowchart

@openstem

Biology · L2 · Cellular Respiration: Releasing Energy From Food · flowchart

Quiz5 questions

What is turgor pressure?

APressure created when a plant cell's wall pulls away from its membraneBThe outward pressure of a cell's contents pushing against a rigid cell wall as water enters by osmosisCThe force roots exert while pulling water up from the soilDA pressure that only forms in animal cells placed in a hypotonic solution

Biology

Biology · L3 · Plant Water Relations Quiz

@openstem

Biology · L3 · Plant Water Relations Quiz

Flowchart7 objects

Biology

Biology · L3 · The Body's Thermostat · flowchart

@openstem

Biology · L3 · The Body's Thermostat · flowchart

Flashcards10 cards

What is an enzyme, and what is its general chemical identity?1 / 10

An enzyme is a biological catalyst — a substance that speeds up a chemical reaction without being consumed or permanently changed by it. Almost all enzymes are proteins, and their three-dimensional shape, determined by how the polypeptide chain folds, is essential to how they work.

Biology

Biology · L3 · Enzymes and Enzyme Activity

@openstem

Biology · L3 · Enzymes and Enzyme Activity

Note~1047 words · 5 min

Next-Generation Sequencing: Platforms and Read Architecture Modern genomics rests on two complementary sequencing strategies. Short-read platforms (dominated by Illumina sequencing-by-synthesis) generate reads of 50-300 base pairs at very h

Biology

Biology · L5 · Genomics and Bioinformatics: From Reads to Variants and Beyond

@openstem

Biology · L5 · Genomics and Bioinformatics: From Reads to Variants and Beyond

Flowchart17 objects

Biology

Biology · L2 · From New Find to Official Name

@openstem

Biology · L2 · From New Find to Official Name

Flashcards9 cards

How does a white blood cell use phagocytosis to fight infection?1 / 9

The white blood cell (such as a macrophage or neutrophil) extends its membrane around a bacterium, engulfing it inside a vesicle called a phagosome. The phagosome then fuses with a lysosome inside the cell, and digestive enzymes break down the trapped bacterium.

Biology

Biology · L3 · Bulk Transport in Action: Immunity, Cholesterol, and Signaling

@openstem

Biology · L3 · Bulk Transport in Action: Immunity, Cholesterol, and Signaling

Collection5 items

01Biology · L4 · Early Embryonic Development

02Biology · L4 · Pattern Formation and Stem Cells

03Biology · L4 · Developmental Biology Quiz

+2 more

Biology

Biology · L4 · Developmental Biology

@openstem

Biology · L4 · Developmental Biology

Note~381 words · 2 min

How Vaccines Are Made: Weakened, Inactivated, and mRNA A vaccine works by showing your immune system something that looks like a germ, so your body can learn to recognize it before you ever get sick from the real thing. Scientists have deve

Biology

Biology · L2 · How Vaccines Are Made: Weakened, Inactivated, and mRNA

@openstem

Biology · L2 · How Vaccines Are Made: Weakened, Inactivated, and mRNA

Flowchart21 objects

Biology

Biology · L1 · Which Part of the Plant Do We Eat?

@openstem

Biology · L1 · Which Part of the Plant Do We Eat?

Flowchart11 objects

Biology

Biology · L2 · From Green Leaf to Autumn Color

@openstem

Biology · L2 · From Green Leaf to Autumn Color

Note~492 words · 2 min

Hematology and Blood Physiology Blood physiology centers on two coupled problems: how oxygen is picked up in the lungs and released precisely where tissue needs it, and how the vascular system stays fluid under normal conditions yet seals r

Biology

Hematology and Blood Physiology

@openstem

Hematology and Blood Physiology

Flowchart13 objects

Biology

Biology · L1 · Born Alive or Hatched?

@openstem

Biology · L1 · Born Alive or Hatched?

Flowchart7 objects

Biology

Biology · L2 · Growing Up and Reproduction Basics Quiz · flowchart

@openstem

Biology · L2 · Growing Up and Reproduction Basics Quiz · flowchart

Flashcards10 cards

What four things do plants need to grow?1 / 10

Plants need sunlight, water, air, and soil to grow big and strong.

Biology

Biology · L1 · What Plants Need to Grow

@openstem

Biology · L1 · What Plants Need to Grow

Flowchart14 objects

Biology

Biology · L3 · Natural Selection for Antibiotic Resistance

@openstem

Biology · L3 · Natural Selection for Antibiotic Resistance

Flashcards10 cards

What is a neuron?1 / 10

A neuron is a nerve cell specialised to carry electrical signals, called nerve impulses, through the body. Neurons are the basic building blocks of the nervous system.

Biology

Biology · L3 · Neuron Structure and the Action Potential

@openstem

Biology · L3 · Neuron Structure and the Action Potential

Flowchart14 objects

Biology

Hamiltons Rule and the Evolution of Altruism

@openstem

Hamiltons Rule and the Evolution of Altruism

Flowchart19 objects

Biology

Biology · L5 · Hardy–Weinberg & Drift Concepts

@openstem

Biology · L5 · Hardy–Weinberg & Drift Concepts

Flowchart9 objects

Biology

Biology · L3 · The Lytic Cycle

@openstem

Biology · L3 · The Lytic Cycle

Flowchart10 objects

Biology

Biology · L1 · A Whale's Breathing Cycle

@openstem

Biology · L1 · A Whale's Breathing Cycle

Flowchart7 objects

Biology

Biology · L2 · Two Ways to Grow Up: Complete and Incomplete Metamorphosis · flowchart

@openstem

Biology · L2 · Two Ways to Grow Up: Complete and Incomplete Metamorphosis · flowchart

Note~331 words · 2 min

Why Leaves Are Green (and Why They Change Color) A leaf's color comes from tiny chemicals called pigments. Each pigment absorbs certain colors of light and reflects the rest — and the color it reflects is the color our eyes see. A leaf can

Biology

Biology · L2 · Why Leaves Are Green (and Why They Change Color)

@openstem

Biology · L2 · Why Leaves Are Green (and Why They Change Color)

Flowchart11 objects

Biology

Biology · L5 · Mechanisms of Neurodegeneration · flowchart

@openstem

Biology · L5 · Mechanisms of Neurodegeneration · flowchart

Flashcards10 cards

What structural components are shared by essentially all viruses, and which components are present only in some?1 / 10

Every virus has a genome (DNA or RNA, single- or double-stranded) enclosed within a protein capsid built from repeating protein subunits (capsomeres), which protects the genome and, in many viruses, mediates initial attachment to a host cell. Some viruses additionally have an envelope, a lipid bilayer derived from host membrane and studded with viral glycoproteins, acquired as the virus buds through a host membrane; enveloped viruses generally require the envelope to remain intact for infectivity and are more sensitive to desiccation and detergents than non-enveloped viruses, which rely on a more physically robust capsid alone.

Biology

Biology · L4 · Virus Structure and Replication Strategies

@openstem

Biology · L4 · Virus Structure and Replication Strategies

‹ PrevPage 34 of 50Next ›