11 - 20 van 31 bronnen weergeven

DNA

Learn about DNA (deoxyribonucleic acid). Overview of DNA bases, complementary base pairing, and the structure of the double helix.

Onderwerp en thema
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2014
Schepper/Auteur
Sal Khan
Trefwoord
DNA

Eating & Exercise

Outcomes:

  • Design a diet and exercise regimen.
  • Estimate the number of calories required for basic survival.
  • Estimate the number of calories burned by exercise.
  • Explain how heart health depends on diet and exercise.
  • Explain how Body Mass Index (BMI) depends on weight and height.
Onderwerp en thema
Form 2
Biology
Nutrition
Nutrition and food nutrient concepts
Type bron
Simulatie
Taal
English
Uitgever
pHET Interactive Simulations
Publicatiedatum
No date
Schepper/Auteur
Sam Reid (Developer)
Trefwoord
Biology
Exercise
Energy

Enzymes

Enzymes as catalysts for reactions in biological systems; discussion of substrates, active sites, induced fit, and activation energy.

Onderwerp en thema
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2015
Schepper/Auteur
Sal Khan
Trefwoord
Enzymes

Evolution Clarification Swahili

Clarifying some points on evolution and intelligent design.

Onderwerp en thema
Form 1
Biology
Introduction to biology
Scientific processes in biology
Type bron
Video
Taal
English
Uitgever
KhanAcademyKiswahili
Publicatiedatum
2012
Schepper/Auteur
Khan Academy
Deelnemer
KhanAcademyKiswahili
Trefwoord
Evolution
Human Evolution

Human evolution overview

From the extinction of the dinosaurs to humanity.

Onderwerp en thema
Form 1
Biology
Introduction to biology
Concept and terminologies of biology
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2011
Schepper/Auteur
Sal Khan
Trefwoord
Evolution
Human Evolution

Human fertilisation and early development

Overview of fertilisation and early human development. From conception leading to a zygote to blastocyst, embryo and fetus.

Onderwerp en thema
Form 1
Biology
Introduction to biology
Scientific processes in biology
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2017
Schepper/Auteur
Sal Khan
Trefwoord
fertilisation

Introduction to cellular respiration

Cellular respiration is the process by which cells derive energy from glucose. The chemical reaction for cellular respiration involves glucose and oxygen as inputs, and produces carbon dioxide, water, and energy (ATP) as outputs. There are three stages to cellular respiration: glycolysis, the Krebs cycle, and the electron transport chain.

Onderwerp en thema
Form 2
Biology
Gaseous exchange and respiration
Respiration
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2009
Schepper/Auteur
Sal Khan
Trefwoord
Cellular Respiration

Introduction to passive and active transport

Introduction to passive and active transport

Onderwerp en thema
Form 2
Biology
Transport of materials in living things
Concept of the transport of materials in living things
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2015
Schepper/Auteur
Sal Khan
Trefwoord
Passive Transport
Active Transport

Matter and energy in food webs

Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.

Onderwerp en thema
Form 2
Biology
Balance of nature
Food chain and food web
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2022
Schepper/Auteur
Sal Khan
Trefwoord
Food webs

Mitosis

Mitosis is how cells divide! Learn what happens in all the phases of mitosis: prophase, metaphase, anaphase, and telophase.

Onderwerp en thema
Form 1
Biology
Introduction to biology
Scientific processes in biology
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2015
Schepper/Auteur
Sal Khan
Trefwoord
Mitosis
Cells