chapter test

Question 1

proposed that new cells are formed only from cells that already exist and he is famous for primitive microscopes

Answer 1

Virchow

Question 2

observed tiny objects with microscopes and he is famous for the simple microscope

Answer 2

Leeuwenhooke

Question 3

concluded that all animals are also made up of cells and he is famous for advanced microscopes

Answer 3

Schwann

Question 4

concluded that all plants are made of cells and he is famous for zeiss microscope lens

Answer 4

Schlidien

Question 5

observed the structure of a thin slice of cork and he is famous for the compound microscope

Answer 5

Hooke

Question 6

an instrument that makes small objects look larger

Answer 6

Microscope

Question 7

uses more than one lense

Answer 7

compound microscope

Question 8

a widely accepted explanation of the relationship between cells and living things

Answer 8

Cell theory

Question 9

• to enlarge in fact or appearance

Answer 9

Magnification

Question 10

sharpness of an image

Answer 10

Resoulution

Question 11

curved outwars

Answer 11

covex

Question 12

T/F: Schwann worked alone to develop the cell theory

Answer 12

false

Question 13

T/F: Organisms who have cells lack a nucleus are called prokaryotes

Answer 13

true

Question 14

T/F: The cell theory is only true for living things that are small

Answer 14

false

Question 15

T/F: Magnification is the ability to make things look larger than they are

Answer 15

true

Question 16

T/F: Chromatin floats in the nucleus which contains genetic material or instructions for the cells functions

Answer 16

true

Question 17

A light microscope can magnify objects up to __ times their original size.

Answer 17

1500

Question 18

_____is an instrument that makes small objects appear larger.

Answer 18

Microscope

Question 19

___ is a rigid layer of nonliving material that surrounds the plant cell.

Answer 19

cell wall

Question 20

___ is the microscope that has better resolution

Answer 20

electron

Question 21

The lenses in a light microscope magnifies an object by ____ the light that passes through it.

Answer 21

bending

Question 22

Name the three parts of the cell theory in order.

Answer 22

All living things are composed of cells, Cells are the basic units of structure and function in living things, All cells are produced from other cells

Question 23

Describe the difference between a light microscope and an electron microscope

Answer 23

Electron microscopes produce an image of a spiceimen by using beams of electrons instead a beam of light Electrons have much shorter wavelengths than visible light, and this allows electron microscopes to produce higher-resolution images than standard light microscopes.

Question 24

How do the cells of bacteria differ from those of other organisms

Answer 24

bacteria lack a nucleus and other membrane-bound organelles. Unlike animals and plants, bacteria have pili, flagella, and most have a cell capsule.

Question 25

Compare and contrast magnification and resolution

Answer 25

Magnification is the ability to make small objects seem larger. Resolution is the ability to distinguish two objects from each other.