Chapter 4-Into To The Cells

Question 1

Aton van Leeuwenhoek

Answer 1

First microbiologist. Improved microscopes by studying pond water

Question 2

Matthias Schleiden

Answer 2

Botanist. Stated “All plants were made of cells.”

Question 3

Theodor Schwann

Answer 3

Zoologist. Stated “All animals were made of cells.”

Question 4

Rudolf Virchow

Answer 4

Came up with the first cell theory. Stated “All new cells can only be produced by the division of old cells.”

Question 5

Light Microscope

Answer 5

Magnifies cells up to 1,000 times. Example: Protist: Euglena, which is a single-cells freshwater organism that eats algae.

Question 6

Electron Microscope

Answer 6

Allows greater magnification and reveals cellular details by either a 2D image or scanning

Question 7

Eukaryotic cells

Answer 7

Partitioned into functional compartments. All other forms of life are composed of more complex eukaryotic cells

Question 8

Prokaryotic cells

Answer 8

Are small simple cells. They do not have a membrane- bound nucleus. But they do have a plasma membrane

Question 9

Examples of Prokaryotic Cells

Answer 9

Bacteria and Archaea

Question 10

Examples of Eukaryotic Cells

Answer 10

Protists, Fungi, Plants, and Animals

Question 11

Plants Cells have …..that Animal Cells don’t

Answer 11

Chloroplast, Vacuoles, and Rigid Cell Walls

Question 12

Tight Junctions

Answer 12

Also known as Impermeable Junctions. Binds Cells together into leakproof sheets

Question 13

Desmosones Junctions

Answer 13

Also known as Anchoring Junctions. Prevents cells from being pulled apart

Question 14

Gap Junctions

Answer 14

Allows communications between cells

Question 15

Microvilli

Answer 15

Finger-like projections that increase surface area for absorption/secretion

Question 16

Robert Hook

Answer 16

Studied Cork. Named cells by monks living in monasteries

Question 17

Micrograph used to see a nematode. What is a nematode?

Answer 17

Differential interference contrast. It’s a worm

Question 18

Micrograph used for showing cancer cells

Answer 18

Fluorescence confocal

Question 19

Micrograph used to see a nematode. What is a nematode?

Answer 19

Differential interference contrast. It’s a worm

Question 20

Micrograph used for showing cancer cells

Answer 20

Fluorescence confocal