FANDOM



Lesson Sequence Previous Lesson Next Lesson
B1 Part 1 B1 Lesson 16 Hormones B1 Lesson 18 Use of Plant hormones in agriculture
Year 9

Learning outcomes and Specification referenceEdit

B1.2.3 Control in plants B1 Lesson 17 Plant Hormones
a Plant shoots and roots respond to light, moisture and gravity. Describe how plant shoots and roots respond to light, gravity and moisture.
b Hormones control and coordinate growth in plants. Draw diagrams to explain the role of auxin in plant responses in terms of unequal distribution in shoots and roots.
c Responses to light, gravity and moisture are controlled by the unequal distribution of auxin which causes unequal growth rates in shoots and roots.

Full Specification TextEdit

a) Internal conditions that are controlled include:
■ the water content of the body – water leaves the body via the lungs when we breathe out and via the skin when we sweat to cool us down, and excess water is lost via the kidneys in the urine
■ the ion content of the body – ions are lost via the skin when we sweat and excess ions are lost via the kidneys in the urine
■ temperature – to maintain the temperature at which enzymes work best
■ blood sugar levels – to provide the cells with a constant supply of energy.
b) Many processes within the body are coordinated by chemical substances called hormones. Hormones are secreted by glands and are usually transported to their target organs by the bloodstream.

c) Hormones regulate the functions of many organs and cells. For example, the monthly release of an egg from a woman’s ovaries and the changes in the thickness of the lining of her womb are controlled by hormones secreted by the pituitary gland and by the ovaries.

Starter ActivitiesEdit

  • No activities have been added to this lesson plan in this section

Activities to introduce new ideasEdit

  • No activities have been added to this lesson plan in this section

Activities to practice applying new knowledgeEdit

  • No activities have been added to this lesson plan in this section

Practical activitiesEdit

DemonstrationsEdit

  • No demonstrations have been added to this lesson plan

Class practicalsEdit

  • No class practicals have been added to this lesson plan

LinksEdit

  • No links have been added to this lesson plan

References to lessons and resources in commercial schemesEdit

Nelson ThornesEdit

OUPEdit

Harper CollinsEdit

Longman/PearsonEdit

HodderEdit

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.