Transcript Grade 8 review

Grade 8 Review
Cells to Systems
Cell Parts
• Q1: What is the function of the
mitochondria?
Cell Parts
• A1: the function of the
mitochondria is to create energy
for the cell.
Cell Parts
• Q2: What is the function of the
nucleus?
Cell Parts
• A2: The nucleus is the control
centre of the cell.
Cell Parts
• Q3: What two extra organelles
are found in plants only?
Cell Parts
• A3: Chloroplasts and Cell Wall
Cell Parts
• Q4: What is the function of the
chloroplast?
Cell Parts
• A4: The function of the
chloroplast is to create food from
light – PHOTOSYNTESIS.
Cell Parts
• Q5: What is the function of the
cell membrane?
Cell Parts
• A5: - controls the movement of
substances in and out.
- Provides protection (keeps
foreign bodies out)
- Holds the cell together - shape
Cell Parts
• Q6: What is the following
organelle?
Cell Parts
• A6: Golgi Apparatus
Circulation
• Q7: What prevents blood from
moving backwards in the heart
and veins?
Circulation
• A7: Valves
Circulation
• Q8: What is the largest artery in
the body?
Circulation
• A8: The Aorta
Circulation
• Q9: What molecule in the blood
makes the blood red when
combined with oxygen?
Circulation
• A9: Hemoglobin.
Circulation
• Q10: What are 2 waste products
of respiration?
Circulation
• A10: Water and Carbon Dioxide
Circulation
• Q11: Approximately how many
times does an average person’s
heart beat while resting?
Circulation
• A11: 70-75 bpm
Circulation
• Q12: What is the large vein from
the top of the body that enters
the right atrium called?
Circulation
• A12: Superior Vena Cava.
Microscopy
• Q13: What part of the
compound light microscope
controls the amount of light that
enters the microscope?
Microscopy
• A13: The diaphragm
Microscopy
• Q14: Who invented the
microscope around the year
1609?
Microscopy
• A14: Anton von Leeuwenhoek
Microscopy
• Q15: If the ocular lens is 10x
and the objective lens is 20x,
what is the overall
magnification?
Microscopy
• A15: 10 x 20 x = 200x
Microscopy
• Q16: How have microscopes
advanced science and medicine?
Microscopy
• A16: - showed us “invisible”
organisms
- Helped us learn about cells and
their function
- Taught us about disease
Cell Organization
• Q17: What is a group of similar
cells working together called?
Cell Organization
• A17: Tissues
Cell Organization
• Q18: What is a group of organs
working together called?
Cell Organization
• A18: Organ Systems?
Cell Organization
• Q19: What organ system is
made of
- alveoli, pharynx, larynx and
sinuses?
Cell Organization
• A19: Respiratory System
Cell Organization
• Q20: What organ system is
made of
- Thrombocytes
- Erythrocytes
- Myocardial tissues
Cell Organization
• A20: The Circulatory System