CH 3.1-3.2 TEST Review

Question 1

What is the smallest unit of life?

Answer 1

cell

Question 2

What is the difference between a compound and simple lens microscope?

Answer 2

compound has several lens, simple has only 1 lens

Question 3

Who discovered and named cells by examining bark?

Answer 3

Hooke

Question 4

Who viewed the first living cell with a simple lens microscope?

Answer 4

Leeuwenhoek

Question 5

Who concluded that plants were made of cells?

Answer 5

Schleiden

Question 6

Who concluded that animals were made of cells?

Answer 6

Schwann

Question 7

Who proposed that cells come from other cells?

Answer 7

Virchow

Question 8

What are the 3 things stated in cell theory?

Answer 8

1. all living things are made of cells
2. Cells are the smallest part of living things that are still alive
3. All cells come from pre-existing cells

Question 9

What does unicellular mean?

Answer 9

organism made of one cell

Question 10

What does multicellular mean?

Answer 10

organism made of many cells

Question 11

What type of cells do not have a nucleus or membrane bound organelles?

Answer 11

prokaryotes

Question 12

What type of cells have a nucleus and membrane bound organelles?

Answer 12

eukaryotes

Question 13

What is the only organelle found in prokarytoes?

Answer 13

ribosomes

Question 14

What types of organisms are prokaryotic?

Answer 14

bacteria

Question 15

What type of organisms are eukaryotic?

Answer 15

plants, animals, fungi, protists

Question 16

What is the maximum magnification of a modern compound light microscope?

Answer 16

1000X

Question 17

What limits the magnification abilities of light microscopes?

Answer 17

light

Question 18

What is the magnification of an electron microscope?

Answer 18

over 500,000X

Question 19

What are some pros to using light over electron microscopes?

Answer 19

can view living specimens
cheaper
portable

Question 20

What are some cons to using electron microscopes?

Answer 20

can only view non-living speciemens
expensive
large

Question 21

Which type of microscope requires that the specimen be dehydrated and placed in a vacuum?

Answer 21

electron microscope

Question 22

Which type of electron microscope shows 3D images of the surface of cells?

Answer 22

scanning

Question 23

Which type of electron microscope can show the internal organelles of the cell?

Answer 23

transmission

Question 24

Which organelle provides support and shapes the cell, aids in cell movement, provides strength?

Answer 24

cytoskeleton

Question 25

What are the 3 fibers that make up the cytoskeleton?

Answer 25

microtubules intermediate filaments microfilaments

Question 26

What is the fluid portion inside the cell called?

Answer 26

cytosol

Question 27

What structure contains the organelles and serves as the site for many chemical reactions?

Answer 27

cytoplasm

Question 28

Where is the DNA stored?

Answer 28

nucleus

Question 29

What is the membrane that surrounds the nucleus called?

Answer 29

nuclear membrane

Question 30

What structure makes ribosomes?

Answer 30

nucleolus

Question 31

Which organelle consists of a series of tubules that has ribosomes attached?

Answer 31

rough ER

Question 32

What organelles lacks ribosomes and makes lipids?

Answer 32

smooth ER

Question 33

What is the function of free ribosomes?

Answer 33

makes proteins that will be used by the cell

Question 34

What is the function of the attached ribosomes?

Answer 34

makes proteins that will be exported

Question 35

What organelle modifies, processes and packages proteins?

Answer 35

golgi aparatus

Question 36

What organelle stores materials?

Answer 36

vesicle

Question 37

What organelle makes energy through cellular respiration?

Answer 37

mitochondria

Question 38

Which organelle contains an inner folded membrane with cristae?

Answer 38

mitochondria

Question 39

What organelle in plants provides support for the cell and stores water or toxins?

Answer 39

central vacuole

Question 40

Which organelle contains digestive enzymes?

Answer 40

lysosome

Question 41

Which organelle forms cilia and flagella and is only found in animal cells?

Answer 41

centrioles

Question 42

What structure found in plants is made of cellulose and protects and supports the cell?

Answer 42

cell wall

Question 43

What organelle carries out photosynthesis?

Answer 43

chlorplast

Question 44

What organelle contains thylakoids that contain chlorophyll?

Answer 44

chloroplast

Question 45

What do mitochondrai and chloroplasts have in common?

Answer 45

double membranes and they have their own DNA

Question 46

Which organelle is the control center of the cell?

Answer 46

nucleus

Question 47

Which organelle helps to detoxify drugs?

Answer 47

smooth ER