Cells & Magnification

Question 1

Where is the DNA found in a cell?

Answer 1

Nucleus

Question 2

What happens in Mitochondria in cells?

Answer 2

Aerobic respiration happens in the mitochondria of cells

Question 3

What is the equation of aerobic respiration?

Answer 3

Glucose + Oxygen –> Carbon Dioxide + Water + Energy

Question 4

What is the role of the cell membrane?

Answer 4

It controls what enters and leaves the cell

Question 5

Name the differences between plant and animal cells (three characteristics) + their functions

Answer 5

• Cell wall (strength & protection)
• Vacuole (storage of nutrients)
• Chloroplast (photosynthesis happens here)

Question 6

Name the organelles of an animal cell + their functions

Answer 6

• Cytoplasm (gel-like fluid providing a platform for other organelles to operate)
• Nucleus (controls and regulates cell activity)
• Ribosome (make proteins)
• Mitochondria (energy synthesis, ATP)
• Cell membrane (controls entry and exit of substances)

Question 7

What is the equation of photosynthesis in plant cells?

Answer 7

Carbon Dioxide + Water –> Glucose + Oxygen

Question 8

What is the difference between a light microscope & an electron microscope?

Answer 8

The light microscope uses light & mirrors.
The electron microscope uses electrons.
Electrons have a shorter wavelength –> higher resolution image