HOMEWORK STARTER1. State 1 excretory organ

Skin, kidney, liver, lung2. State the 3 layers in the kidney

Cortex, medulla, renal pelvis3. State the name of the tube that goes from the kidney to the

bladder Ureter

4. What is the role of the glomerulus and capsule? Filter the blood

5. Where is urea made? Liver

6. What is urea made from? Excess amino acids

7. What is the name of the hormone that controls the water content of the blood?

ADH (Anti Diuretic Hormone)8. What effect does ADH have on the kidney tubules?

Make them more permeable to water (water goes into the blood)

Correct label and state the function of each part of a nephron (kidney tubule)

Important in reabsorption of water (under

hormonal control) Explain the detailed functioning of the kidney (Grade A)

Blood enters the kidney in the

________________________

Purified blood leaves the kidney in the ________________________

Waste materials leave the kidney in a tube called the ________________________

Useful molecules are

________________

The blood is filtered because it is under _________________ pressure.

________________________

molecules stay in the blood

Small molecules pass through the filter.

renal artery

high

large

reabsorbed

renal veinureter

DIALYSISPatients who have kidney failure

can’t filter their blood properly – but a dialysis machine can do it for them.

How often does dialysis need to be done?

For upto 10hrs every few days Why is the membrane semi-

permeable? To allow waste substances to pass

through e.g. urea Why does dialysis fluid have

the same concentration of salts and glucose as blood plasma?

So they aren’t removed from the blood

Explain the principle of a dialysis machine (Grade A)

PLENARY1. Where in the body is urea produced?

2. What is getting rid of undigested food from the body called?

3. What is the function of the glomerulus?

4. What process is used to reabsorb sodium?

5. Why is glucose reabsorbed by the body?

6. What does the presence of glucose in the urine suggest?

Liver

Egestion

UltrafiltrationActive

transport

Needed for respiration

Diabetes

WASTE DISPOSAL PART 1

Learning objectives Success criteria

To understand the organs of excretion, specifically the kidney

State and locate the main excretory organs (E)

Describe the gross structure of the kidney (Grade C)

Explain the detailed functioning of the kidney (Grade A)

Explain the principle of a dialysis machine (Grade A)

B5G1 MENSTRUAL

CYCLE

HOMEWORK STARTER1. State 1 excretory organ

Skin, kidney, liver, lung2. State the 3 layers in the kidney

Cortex, medulla, renal pelvis3. State the name of the tube that goes from the kidney to the

bladder Ureter

4. What is the role of the glomerulus and capsule? Filter the blood

5. Where is urea made? Liver

6. What is urea made from? Excess amino acids

7. What is the name of the hormone that controls the water content of the blood?

ADH (Anti Diuretic Hormone)8. What effect does ADH have on the kidney tubules?

Make them more permeable to water (water goes into the blood)

SUCCESS CRITERIA Describe the main stages of the

menstrual cycle (Grade E) Describe the role of hormones in the

menstrual cycle (Grade C) Explain how negative feedback is used

in control of the menstrual cycle (Grade A)

STARTER In pairs label the reproductive systems

Testis (pl testes)

Scrotum

Coiled tube

Sperm duct

Glands

Bladder

Urethra

Penis

Erectile tissue

Foreskin

MALE SYSTEM

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Stores urine

A sac of skin that hold the testes outside the body to keep them cool

Where sperm are stored

Carries sperm and urine out of the body

Make liquid to feed and activate the sperm

Where the sperm are made

Fills with blood to stiffen the penis

Transfers sperm to the woman

Squeezes the sperm along

BLADDER

SCROTUM

COILED TUBE

ERECTILE TISSUE

PENIS

URETHRA

GLANDS

TESTIS

URETHRA

What’s what?

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OVARY

OVIDUCT or FALLOPIAN TUBE UTERUS or WOMB

SOFT LINING

MUSCLE LAYER

CERVIXVAGINA

FEMALE SYSTEM

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Lined with hairs (cilia) that beat and carry the egg along.

Where the eggs are made

Where the baby grows

Rich in blood vessels to supply the baby with food and oxygen

Used to push the baby out during birth.

Narrow opening through which the baby must be pushed out during birth.

Where the sperm are released by the man’s penis.

SOFT LINING

CERVIX

OVIDUCT

MUSCLE LAYER

OVARY

VAGINA

UTERUS

What’s what?

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VIDEO CLIPS Menstrual Cycle

http://www.bbc.co.uk/learningzone/clips/the-changes-that-occur-during-the-menstrual-cycle/1847.html

Ovulationhttp://www.bbc.co.uk/learningzone/clips/ovu

lation/1845.html

TASK In pairs decide on the main stages of

the menstrual cycle

MAIN STAGES OF MENSTRUAL CYCLE Menstruation

Uterus lining breaks down (a period) Thickening of uterus lining Ovulation

Egg released by ovary

ROLE OF HORMONES IN THE MENSTRUAL CYCLE Oestrogen

Repairs uterus wall Progesterone

Maintains uterus wall FSH (follicle stimulating hormone)

Released by pituitary glandStimulates egg development

LH (lutenising hormone)Released by pituitary glandControls ovulation

HIGHER NEGATIVE FEEDBACK Progesterone inhibits FSH

No more eggs are matured

TASK Complete worksheet B5g1 part 2&3

ANSWERS2. A)

B)

name of hormone one function of hormone

hormone A Oestrogen Build lining

hormone B Progesterone Maintain lining

hormone Bhormone A

X Y

ANSWERS2. C i) Stimulate the development of the egg

C ii) Cause ovulation (egg release)3. A) Ovary

B) Progesterone inhibits FSHC)

pituitary gland

follicle stimulating hormone (FSH)

luteinising hormone(LH)

ovary

stimulates progesterone

release

stimulates egg development

negative feedback on FSH release

Oestrogen inhibits FSH

PLENARY1. What causes the uterus lining to break down?

No fertilised egg2. Where are the hormones oestrogen and progesterone

made? Ovaries

3. From where are the eggs released? Ovaries

4. Which hormone stimulates egg release LH

5. Which two hormones are produced by the pituitary gland?

LH and FSH6. What does follicle stimulating hormone do?

Stimulate egg development7. Which two hormones are involved in the uterus lining?

Progesterone and Oestrogen8. What is ovulation?

Egg release9. What hormones are inhibited by progesterone?

LH and FSH