Tag Archives: plants

9.4 Reproduction in Plants

9.4 plant reproduction from Bob Smullen

A 13m 18s video lesson covering all of 9.4 from Dan Rott:

An 18m video clip on plant reproduction from ‘The amazing lives of plants’ (MacGraw-Hill) – we do not need to know about double fertilisation though:


An animated, narrated tutorial on the life cycle of an angiosperm (which also includes a quiz from Sinauer Associates) and Double Fertilisation in Angiosperms (University of Kent & UCA). Both go into much more detail than you need (we don’t need to know about double fertilisation) but they are good.


The beautiful tricks of flowers – a 14m TED-Ed talk from Jonathan Drori and here’s ‘The Beauty of Pollination’ from Louie Schwartzberg (TED):

In Crash Course Biology #38 – The Plants & The Bees: Plant Reproduction, Hank gets into the dirty details about vascular plant reproduction.


Mung bean time-lapse of germination:

Also here are radish seeds germinating & sprouting roots & shoots (46s).


A fantastic animated tutorial from McGraw Hill Education on Phytochrome signalling.

2.9 Photosynthesis

BioKnowledgy 2.9 Photosynthesis from Chris Paine.

A good, general overview of Photosynthesis (4m 52s):

In Crash Course Biology #8 – Photosynthesis, Hank explains, well, photosynthesis.

The simple story of photosynthesis and food from TED-Ed. Find a video lesson on this sub-topic at Dan Rott videos, or many assessment statements are covered by Stephanie Castle (with more being added all the time).

COMPULSORY PRACTICAL 4 – separation of photosynthetic pigments by chromatography

One way to do it is this: chlorophyll chromatography and an alternative method includes how to calculate Rf values. Hopefully the final result will be this. An alternative method:

 SAPS sheet 10 – TLC

B5.1 Transport in Plants

B5.1 Revision notes in downloadable word format and here are key terms and some definitions: Key Terms B5.1.

A nice short introduction to Plants, Growth & Transport (from Twig World):


Transport in plants in three and a half minutes:

Or how about a whole lesson from Mr Paul Andersen? He goes into more detail than we need (we have to know about Dicots but not Monocots), but he’s good:

The most amazing thing about trees (5m video).


More-detailed than we need but it’s good:

Mr Paul Andersen starts by defining transpiration as evaporation of water from a leaf. He then describes how a potometer can be used to measure the rate of transpiration in different environments:

How to use set-up a potometer: Transpiration: the power of the potometer, a 17m video from STEM Learning.


Here’s a 2m video on Phloem Loading (in a little more detail than we need).


Specialized Leaves, a short 1m 39s video.


For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank.

Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. GCSE Bitesize has revision pages (that take you through the topic), a test and an activity. 


IGCSE Biology: Coursebook, chapter 8, pp.100 – 107 & 109 – 110

B7.3 Tropic Responses

Tropisms from Marthese Azzopardi

Science Bank 15: Part 3 covers Plant Tropisms (from 9m 25s to 14m 30s):

B7.3 Revision notes

A 3 minute introduction to tropisms (from Twig World).

Plant Control – Paul Andersen explains how plants use hormones to respond to their environment. We only need to know about auxins (to 3m 40s).


IGCSE Biology: Coursebook, chapter 10, pp. 139 – 142