Everything Life Sciences Grade 10

(Marvins-Underground-K-12) #1
What type of cartilage is this?

Try to remove it from the bone. Then try to scratch it first with your nail and, then with
something very hard and sharp.

Describe what you observe.

What do you think the function of cartilage is?

What common, man-made material is closest in its properties to cartilage?

Questions:

Data (show all working)

Tissue Mass, correct to 1 decimal place (g)
Entire wing
Skin
Muscle
Subcutaneous Fat


  1. Muscle is eaten for its protein. Muscle is made of protein. What percentage of this
    wing is muscle?

  2. What total percentage of this wing was made up of fat?

  3. Calculate the total fat-to-muscle ratio as a percentage.

  4. Look at the price per kilo for these wings. Assuming the wings have the same mass,
    and there are 6 per pack, how much does one wing cost? You are paying the above
    price only to really eat the protein, what is the actual price per kilo you are paying for
    the meat in this case.


Cleaning:

Tidy and clean the work station thoroughly after each session. Wash instruments in hot soapy
water with a sponge/scourer, rinse in the cold sink (NOT under running water) and dry with
a cloth. Replace apparatus in the correct containers. Scalpel blades are to be removed,
cleaned, dabbed dry with roller-towel and returned to their envelopes.

5.5 Applications of indigenous knowledge and biotechnology


nology DUMMY


Traditional medicines DUMMY


In The World Health Organisation definition of traditional medicine, they incorporate a list
of plant and animal product-based therapies as well as spiritual practices as part of traditional
medicine. Up to 80% of people in African and Asian countries rely on traditional medicines
for their basic health care needs. In South Africa, broadly there are two types of practitioners:


Chapter 5. Plant and animal tissues 143
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