Skeleton
True or false? Biomechanics is the study of the interaction between the muscles and nerves.
It's false! Biomechanics is the study of the interaction between the muscles and skeleton.
In which direction do particles move during diffusion?
Fom an area of high concentration to an area of low concentration.
Guess who! I control the cell and contain its genetic information (DNA).
Nucleus
How is a sperm cell specialised?
Has lots of mitochondria and a tail to swim.
What are the three main types of joints in the human body?
How would you describe the movement of particles during the diffusion process?
Random
Guess who! I control the cell and contain its genetic information (DNA).
Cell membrane
What do red blood cells carry around the body?
Oxygen
State a function of the skeleton?
Movement, Protection and support.
In which state of matter does diffusion not commonly occur?
Solid.
Guess who! I am the jelly-like substance where lots of chemical reactions happen.
Cytoplasm
What are the tiny hairs on ciliated cells called?
Which joint has the widest range of movement?
Ball and socket.
In which state of matter does diffusion happen the fastest and why?
Diffusion happens fastest through gases. The particles in gases are more widely spaced and they move much faster than the particles in a liquid or solid.
Guess who! I contain cell sap and help to keep the cell firm.
Chloroplasts.
How is a palisade cell specialised?
Lots of chloroplasts to absorb light energy for photosynthesis.
Tall, thin shape to give it a large surface area to maximise the absorption of light.
Describe how muscles work together to move bones.
Why doesn’t diffusion happen in solids?
Diffusion doesn’t happen in solids because the particles in a solid cannot move around, instead they vibrate about a fixed position.
Vacuole, Chloroplast and cell wall.
State one specialised animal AND plant cell.
Animal:
Sperm, egg, nerve cell, red blood cell, muscle cell, white blood cell, ciliated epithelial cell
Plant:
Palisade cell and root hair cell