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Phases of meiosis I

How homologous chromosomes separate into two sets. Prophase I, metaphase I, anaphase I, and telophase I.

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
Meiosis

pH Scale

Outcomes:

  • Determine if a liquid is acidic, basic, or neutral
  • Place acids or bases in relative order
  • Describe on a molecular scale, with illustrations, how the water equilibrium varies with pH
  • Determine concentration of hydroxide, hydronium and water at a given pH
  • Relate liquid color to pH
  • Predict (qualitatively and quantitatively) how dilution and volume will affect the pH and concentration of hydroxide, hydronium and water
Onderwerp en thema
Form 1
Biology
Introduction to biology
The biology laboratory
Type bron
Simulatie
Taal
English
Uitgever
pHET Interactive Simulations
Publicatiedatum
No date
Schepper/Auteur
Yuen-ying Carpenter (lead)
Trefwoord
pH
Dilution
Concentration
Acids
Bases

Scale of cells

Even though molecules, proteins, viruses, and cells are all tiny, there are significant size differences between them. The diameter of a water molecule is roughly 0.28 nanometers. The diameter of the protein hemoglobin is roughly 5 nanometers. The diameter of the HIV virus is roughly 120 nanometers. A red blood cell is 6-8 micrometers.

Onderwerp en thema
Form 1
Biology
Cell structure and organisation
Concept of cells
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2015
Schepper/Auteur
Sal Khan
Trefwoord
Cells

Scales and Measurement

By the end of this unit you will be able to:

  • Use a ruler and protractor accurately
  • Understand the SI system of measurement
  • Convert between different units
Onderwerp en thema
Form 1
Mathematics
Units
Units of length
Type bron
Cursus
Taal
English
Uitgever
Pressbooks
Publicatiedatum
No date
Schepper/Auteur
Dylan Busa
Trefwoord
Scales
Scales of measurement
Units of measure

Skeletal structure and function

Skeletons support and protect our bodies. Bugs have exoskeletons outside their bodies, while humans have endoskeletons inside. Our bones are in axial (skull, ribcage, spine) and appendicular (arms, legs) groups. Bone marrow makes blood cells; more specifically, red marrow makes blood and yellow marrow stores fat. 

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
Tracy Kim Kovach
Trefwoord
Skeletal structure

Sura za Meiosisi - Phases of Meiosis

The phases of Meiosis.

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

Units of capacity

Outcomes

By the end of this course you will:

  • Be able to define capacity and volume
  • Be familiar with the metric units of capacity
  • Be able to convert from one unit of capacity to another
Onderwerp en thema
Form 1
Mathematics
Units
Units of capacity
Type bron
Cursus
Taal
English
Publicatiedatum
2023

Units for Metric Measurement

This lesson explores appropriate units for metric measurement.

Onderwerp en thema
Form 1
Mathematics
Units
Units of length
Type bron
Cursus
Taal
English
Uitgever
CK-12
Publicatiedatum
2022
Schepper/Auteur
CK-12
Trefwoord
Units of measure
Metric measurements
Units of length

Units for Metric Measurement: Online Activity

An online activity which will test your understanding of metric measurements.

Onderwerp en thema
Form 1
Mathematics
Units
Units of length
Type bron
Werkbladen en klassikale activiteiten
Taal
English
Uitgever
CK-12
Publicatiedatum
No date
Schepper/Auteur
CK-12
Trefwoord
Units of measure
Metric measurements
Units of length

Units of time

Outcomes

By the end of this course you will:

  • Know what the 12 hour and 24 hour clocks are respectively
  • Be able to convert times from the 12 to 24 hour clock and vice versa
  • Be familiar with the units of time
  • Learn how to convert one unit of time to another
Onderwerp en thema
Form 1
Mathematics
Units
Units of time
Type bron
Cursus
Taal
English
Publicatiedatum
2023