Science Lesson 2

Question 1

What are all living things made of?

Answer 1

Cells

Question 2

Why did it take so long for scientists to learn about cells?

Answer 2

They were so small

Question 3

When were cells discovered?

Answer 3

1665

Question 4

Who built the first microscope to lead to the discovery of cells?

Answer 4

Robert Hooke

Question 5

What invention allowed us to see details that can’t normally be seen by the naked eye?

Answer 5

Microscope

Question 6

How does a light microscope work?

Answer 6

a) uses light lenses to enlarge images of an object

Question 7

How does an electron microscope work?

Answer 7

uses a magnetic field to focus a beam of electrons through an object or objects surface.

Question 8

What is the first principle of the cell theory?

Answer 8

All living things are made up of one or more cells.
(all living things are made up of atoms which form molecules.)

Question 9

What is the second principal of the cell theory?

Answer 9

Cells are the smallest unit of life.
(Make up living organisms)

Question 10

What is the third principal of the cell theory?

Answer 10

All cells come from preexisting cells through the process of cell division.

Question 11

What are molecules made up of?

Answer 11

Cells

Question 12

Why are cells important for organisms?

Answer 12

It keeps them alive.

Question 13

What is a cell theory?

Answer 13

Three observations by three scientists combined to create the cell theory.

Question 14

What are the two types of living things. (based on the amount of cells they have.)

Answer 14

a) Unicellular Organism
b) Multicellular organism

Question 15

What are unicellular organisms?

Answer 15

Living things made up of only on cell.

Question 16

What are multicellular organisms?

Answer 16

living things that are made up of two or more cells

Question 17

Name the first characteristic of living things.

Answer 17

Living things are organized.

(organized by the different functions they perform)

Question 18

What is the second characteristic of living things?

Answer 18

Living things grow and develop.

(They increase in size)

Question 19

What is the third characteristic of living things?

Answer 19

Living things reproduce

Question 20

What is the fourth characteristic of living things?

Answer 20

Living things respond to stimuli

(response to changes in their environment)

Question 21

What is the fifth characteristic of living things?

Answer 21

Living things maintain internal conditions or homeostasis.

(maintain steady internal conditions when external conditions change)

Question 22

What is the sixth characteristic of living things?

Answer 22

Living things use energy

Question 23

What are the two different types of cells?

Answer 23

a) prokaryotic cells
b) Eukaryotic cells

Question 24

How is the lining of a prokaryotic cell?

Answer 24

not surrounded by a lining

Question 25

How is the sizing of a prokaryotic cell?

Answer 25

A prokaryotic cell is small. Smaller than a Eukaryotic cell.

Question 26

How is the lining of a Eukaryotic cell?

Answer 26

With exceptions, it is surrounded by a lining.

Question 27

How is the sizing of a Eukaryotic cell?

Answer 27

Large. Larger than the prokaryotic cell.

Question 28

Is the prokaryotic cell complex or simple?

Answer 28

Simple

Question 29

Is the Eukaryotic cell complex or simple?

Answer 29

Complex

Question 30

Does Prokaryotic cell have nucleus and organelles?

Answer 30

No

Question 31

Does the Eukaryotic cells have organelles and nucleus?

Answer 31

yes

Question 32

How many cells is in a prokaryotic cell?

Answer 32

Single celled

Question 33

How many cells is in a Eukaryotic cell?

Answer 33

Both single and multiple cells

Question 34

What is the original cell, prokaryotic or eukaryotic?

Answer 34

Prokaryotic

Question 35

How was a eukaryotic cell created?

Answer 35

The eukaryotic cell evolved from the prokaryotic cell.

Question 36

What are the six kingdoms that organisms can be classified into?

Answer 36

a) Bacteria b) Archaea c) Protists d) plants e) fungi f) animals

Question 37

What are the 3 domains that organisms can be classified into?

Answer 37

1) Domain bacteria 2) Domain Archaea 3) Domain Eukarya

Question 38

What kingdoms go into Domain Bacteria?

Answer 38

1) bacteria

Question 39

What kingdoms go into domain archaea?

Answer 39

1) Archaea

Question 40

What kingdoms go into domain Eukarya?

Answer 40

1) Protists 2) plants 3) fungi 4) animals

Question 41

What is development?

Answer 41

Genetic instructions tell the organism that it needs to grow

Question 42

What is growth?

Answer 42

living organisms increase in size (due to genetic code.)

Question 43

What are the two types of reproduction?

Answer 43

a) sexual b) asexual

Question 44

What is internal stimuli?

Answer 44

reacting to internal events (hunger)