Tag Archives: hormones

IGCSE Bio Topic 14 – Coordination & Response

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. 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.

An excellent powerpoint that covers it all:

14.4 Homeostasis

A good powerpoint that includes osmoregulation:

Homeostasis of the body from Claire Gaukrodger

14.4 Homeostasis notes in downloadable word format.

A lesson on Thermoregulation from Mr Dare:

Science Bank 16 (Homeostasis): part 1 – controlling Temperature (to 5m 10s), part 2 – controlling Water Levels (to 9m) & part 3 – controlling Blood Sugar Level (to 14m 10s):

A powerpoint can be downloaded from here, a 5m 33s animation on Homeostasis is here & this link to GCSE Bitesize will help you revise the topic.

Videos include The Virtual Body – Homeostasis (19m), Homeostasis – The New Living Body (19m) & BBC Short Circuit Homeostasis (19m).

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B7 Coordination & Response (Combined Science)

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. 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.

B7.1 HORMONES

The only hormone we need to know about is adrenaline. Here GCSE Bitesize revises Hormones (7m 12s) in more detail than we need.

B7.2 TROPIC RESPONSES

We only need to know the first 28 slides:

Tropisms from Marthese Azzopardi

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

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).

11.4 Sexual Reproduction

BioKnowledgy presentation on 11.4 Sexual reproduction from Chris Paine

Paul Andersen describes The Reproductive System in 9m. In Crash Course Biology #34 – The Reproductive System: How Gonads Go, Hank lets us in on the meaning of life, at least from a biological perspective – it’s reproduction.

GAMETOGENESIS

Fantastic animated tutorials from McGraw Hill Education – spermatogenesis &  the  maturation of the oocyte & follicle.

FERTILISATION

Impressive Journey of Sperm – a 6m video on fertilisation.

IMPLANTATION & EMBRYO DEVELOPMENT

Day 0 to 7 Fertilization, Zygote, Blastocyst 4m video from Armando Hasudungan. Implantation – a 2m 53s animation.

A Biologist’s Mother’s Day Song (3m 50s):

6.6. & 11.4 Reproduction from Bob Smullen

Amazing – Child is born still inside Amniotic Sac – happens to just one in every 80,000 babies

D5 Hormones & Metabolism (HL only)

Hormonal Control from Stephen Taylor – thank you Mr Taylor (of iBiology).

The fight or flight response as an example of cells signalling other cells (4m 34) – you don’t need to know this:

http://www.youtube.com/watch?v=U6uHotlXvPo&feature=share&list=PLRjS0i4ZIK37I8XE_QowMkhuWAhoukz_F&index=1