lesson 1

Question 1

is the smallest structural and functional unit of an organism

Answer 1

cell

Question 2

most cells are so small that you cannot see them without the help of a ______

Answer 2

microscope

Question 3

it was not until 1665 that English Scientist ______ invented a ________ & observed cells for the first time by looking at a piece of cork

Answer 3

Robert Hooke, Basic Light microscope

Question 4

A more powerful microscope, called an _______, passes a beam of electrons through the specimen

Answer 4

electron microscope

Question 5

he observed bark of cork trees under a microscope. He thought the objects looked like individual rooms in a _____, which were called cells.

Answer 5

Robert Hooke, Monastery

Question 6

He is a Dutch Scientist. In _______ he used ________. He saw single celled “animals” swimming in the water & called them “________” He was the first person to observe bacteria

Answer 6

Anton Van Leeuwenhoek
1683
Simple Microscope
Animacules

Question 7

Concluded that all plant tissues are composed of cells. Declared that cell is the basic building block of all plant matter

Answer 7

Matthias Schleiden

Question 8

Concluded that all animal tissues are composed of cells.

Answer 8

Theodore Schwann

Question 9

What is the Cell Theory?

Answer 9

1. All organisms are composed of cells
2. Cells are the basic unit of life.
3. All cells came from the division of pre-existing cells

Question 10

He proposed that all cells result from the division of pre-existing living cells.

Answer 10

Rudolph Virchow

Question 11

What are the Function of Cells?

Answer 11

Metabolism
Response
Homeostasis
Growth
Reproduction
Nutrition
Defense

Question 12

FOC: Chemical Reactions inside the cell

Answer 12

Metabolism

Question 13

FOC: Perceiving & receiving to changes in the environment

Answer 13

Response

Question 14

FOC: Keeping conditions inside the organism w/in tolerable limits

Answer 14

Homeostasis

Question 15

FOC: increase in size

Answer 15

Growth

Question 16

FOC: producing offspring

Answer 16

Reproduction

Question 17

FOC: Obtaining food to provide energy for growth

Answer 17

Nutrition

Question 18

FOC: protection against enemies

Answer 18

Defense

Question 19

What are the specialized cells?

Answer 19

RBC
Nerve Cells
Skin cells

Question 20

Shaped like flat discs to move easily& quickly through blood vessels & deliver oxygen all over the body

Answer 20

Red Blood Cells

Question 21

Long& stringy in order to form a line of communication with other nerve cells, like a wire

Answer 21

Nerve Cells

Question 22

Flat& fit tightly together to protect your body

Answer 22

Skin cells

Question 23

He discovered cell in 1665

Answer 23

Robert Hooke

Question 24

He observed living cell in 1674

Answer 24

Anton Van Leeuwenhoek

Question 25

He discovered Nucleus in 1833

Answer 25

Robert Brown

Question 26

He discovered fluid content of cell in 1835

Answer 26

Felix Dujardin

Question 27

he named the fluid content of the cell as protoplasm in 1839

Answer 27

J. E Purkinje

Question 28

an organism that is made up of only one cell

Answer 28

Unicellular organism

Question 29

an organism that is made up of more than one cell

Answer 29

Multicellular Organism

Question 30

Smallest Cell

Answer 30

Mycoplasma (0.1 micrometer)

Question 31

The unit used to measure size of a cell

Answer 31

micrometer

Question 32

Largest cell

Answer 32

Ostrich egg (18cm)

Question 33

Smallest, Largest, Longest cell in Human

Answer 33

Sperm Cell (5 micrometer)
Ovum Cell (120 micrometer)
Nerve Cell (1m)

Question 34

Can change their shape to engulf the microorganisms that enter the body

Answer 34

Human White Blood Cells

Question 35

Circular biconcave for easy passage through human capillaries

Answer 35

Human RBCs

Question 36

The structure of a cell as seen under an electron microscope is called _______

Answer 36

ultrastructure

Question 37

Maximum magnification of compound & electron microscope

Answer 37

2000x
500,000x