This lesson starts with a recall of the structure of phloem tubes and their companion cells. Students then learn of the process of translocation from source to sink. Finally, the lesson covers why some parts of the plant may be a source and sink at different times of the year. Fully resourced, exam questions included.

In this lesson, students learn about transpiration in terms of water potential how water moves from the soil through a plant and into the air. They learn of the three pathways by which water is transported from soil to xylem and the three mechanisms by which water is moved from roots to leaves. Exam questions included.

in this lesson the students learn about what happens to the zygote after fertilisation. They then learn about the role of the placenta, umbilical cord, amniotic sac and fluid, and how nutrients and waste products are exchanged between mother and fetus (B). Fully resourced with exam questions.

This lesson starts with the different types of proteins that DNA codes for and how chromosomes are used to make proteins - transcription and translation. The lesson concludes with why not all genes are expressed at the same time. Fully resourced with videos and exam questions.

In this lesson, students learn about the stages of the menstrual cycle and the changes in the uterus and ovaries during the menstrual cycle. For higher tier students, they also learn of the role of hormones FSH, LH, progesterone and oestrogen in controlling the menstrual cycle. Lots of resources, activities and exam questions.

In this lesson, students learn about the role of chromosomes and the relationship between chromosomes, genes and DNA. They then learn of differences between genes and alleles. Differences between the X and Y chromosomes are learnt and how gender is inherited. Lesson concludes with a brief overview how genes code for proteins. (Transcription and Translation comes in another lesson). Fully resourced with videos and exam questions.

This lesson covers the type of protein that enzymes are categorised into and teaches students how to describe and explain how enzymes work in terms of: the active site; the enzyme–substrate complex; lowering of activation energy, and enzyme specificity. The lesson then progresses into the differences between the lock-and-key hypothesis and the induced-fit hypothesis. Fully resources and exam questions.

This lesson covers the when and why DNA needs to replicate, and how DNA replicates. The lesson then looks at understanding the roles of DNA polymerase and ligase. Fully resourced.

This lesson covers how proteins are made, including the role of RNA polymerase, messenger RNA, transfer RNA, ribosomes and the role of start and stop codons. The lesson progresses into the roles of the DNA template (antisense) strand in transcription, codons on messenger RNA and anticodons on transfer RNA. Fully resourced with video’s and practise exam questions.

This lesson starts with recall the structure of proteins and the structure of a gene then to explain how genes code for the amino acids in a polypeptide. The lesson finishes off with principle of the universal genetic code.

This lesson starts with recall of KS4 mitosis, the introduces the concept of the complete cell cycle including Interphase: Gap 1; Synthesis, and Gap 2. All stages of mitosis is covered including the roles of involved organelles. Lesson concludes with a quiz to identify the stages of mitosis from micrographs.

This lesson starts with a quick review of chromosome structure and then the details of the structure of nucleotides. The lesson then moves onto base pairing, hydrogen bonding and phosphodiester bonding. Fully resourced with a lot of extra consolidation activities.

In this lesson students recall genetic terminology from KS4 and use genetic diagrams to predict and explain the results of monohybrid crosses involving: dominance, multiple alleles and co-dominance. Some the presentation is copied and changed from other teachers, and comes fully supplied with lots of crossing practise.

This is a fully resourced lesson on the process of meiosis with opportunity for students to model all phases in meiosis I and II. Exam practise included in the PPT and also the hard, medium and easy questions from Save My Exams.

This lesson covers all the learning objectives for plant homeostasis as per the CIE specification. It focuses on the structure and function of stomata, how they are able to open and close during their daily rhythm and the use of abscisic acid and calcium during times of water stress. Lots of visual diagrams outlining the stages of the process. CIE specific exam questions are also included.

These two PPT’s cover all glands and the hormones they produce. They can be used for all exam boards and their specifications. Both PPT’s contain many visuals and cover the consequences of the deficiency of certain hormones on the body. The PPT’s also cover the differences between exocrine and endocrine glands, including the 2nd messenger model for for cell signalling.

This lesson starts with a recall of actin and myosin structure. Then probes further in the the roles of the regulatory proteins troponin and tropomyosin. The structure of the sarcomere is covered including identifying parts on a micrograph. Later, the process of contraction is covered as per the sliding filament theory. the cross bridge cycle is covered in details including the role of calcium, ATP and the regulatory proteins. Exam questions included.

This lesson looks at the mode of action of the Venus Fly Trap and how it responds to stimuli. the lesson then progresses into the roles of hormones gibberellins and auxin. Lots of visual diagrams to illustrate concepts. Biofactsheets on plant hormones and CIE specific exam questions and mark scheme provided.

This lesson revisits KS4 learning of synapses and moves on to the stages involved in the passages of neutrtransmitters across the cleft. Also covered is unidirection, summation and inhibition, followed by the neuromuscular junction and a comparison between both the cholinergic synapses and neuromuscular junctions. The lesson also includes details on how drugs affect neurotransmission (not required for CIE). Lots of visuals and videos to embed learning. Details of the T-tutbule system and sacoplasmic reticulum and included in the next lesson on muscle contraction. Exam questions also included.

This lesson builds on protein structure and uses haemoglobin and collagen as examples of globular and fibrous proteins. Opportunities for students to research for themselves, followed up with structured notes and a summary exercise to compare similarities and differences between the two types. Also included are the Biofactsheet notes.