Cell Structure

Question 1

What is the function of a ribosome?

Answer 1

in protein synthesis.

Question 2

If the actual size of a cell is 100 μm, and 10 cm in a book, what is the magnification of the image in the book?

Answer 2

1000

Question 3

How is a muscle adapted to its function?

Answer 3

contains protein filaments that slide over each other and cause contraction

Question 4

What is a feature of eukaryotic cells not present in prokaryotic cells?

Answer 4

mitochondria

Question 5

A type of white blood cell called a macrophage measures 5 x 10-5 m. What does it measure in micrometres?

Answer 5

50 μm

Question 6

How have microscopes developed over the years?

Answer 6

Increased magnification, increased resolution

Question 7

What is an advantage of the transmission electron microscope compared with the light microscope?

Answer 7

Higher magnifications are possible with the transmission electron microscope

Question 8

If the magnification of an eyepiece is ×10 and the objective is ×40, what is the magnification of the microscope?

Answer 8

×400

Question 9

magnification = …

Answer 9

size of image
———————
real size of image