Characteristics of a Cell

Question 1

What is 10 angstrom in nanometers?

Answer 1

1 nanometer

Question 2

What is the unit for nanometer?

Answer 2

nm

Question 3

what is 1,000 nanometer in micrometer?

Answer 3

1 micrometer

Question 4

What is the unit for micrometer?

Answer 4

μm

Question 5

What is 1,000,000 micrometers in meters?

Answer 5

1 meter

Question 6

What is the unit for meter?

Answer 6

m

Question 7

How many ribosomes are need to make up one meter?

Answer 7

20,000,000

Question 8

How big or small should something be to be consider subcellular?

Answer 8

<1μm

Question 9

How big or small should something be to be consider cellular?

Answer 9

> 1μm

Question 10

What size do protein vary around?

Answer 10

10 nm

Question 11

What is Robert Hooke most known for?

Answer 11

Hooke elasticity law

Question 12

What did Hooke publish in 1665?

Answer 12

Micrographia some physiological descriptions of minute bodies made by magnifying glasses

Question 13

How many observations did Hooke report in the book he published in 1665?

Answer 13

60 observations

Question 14

What is an extracellular structure?

Answer 14

Outside of the cell

Question 15

What is an intracellular structure?

Answer 15

Inside of the cell

Question 16

What do cells have a tendency to do?

Answer 16

Move around, recognise and do things

Question 17

What did Leeuwenhoek discover in 1676?

Answer 17

Discovered bacteria

Question 18

What did Leeuwenhoek discover in 1674?

Answer 18

Free-living and parasitic microscopic protists

Question 19

What did Leeuwenhoek discover in 1677?

Answer 19

Sperm cells

Question 20

What did Leeuwenhoek discover in 1688?

Answer 20

Muscle fibres

Question 21

What did Schleiden and Schwann propose in 1839?

Answer 21

Cell theory

Question 22

What three things did the “Cell theory” propose?

Answer 22

1. Cell is the unit of structure, physiology and organising in living things
2. Cell stains dual extixtanze as distinct entity and building block
3. Cells form by free-cell formation

Question 23

Which out of the three things that the “Cell theory” propose was wrong?

Select one:
A. Cell is the unit of structure, physiology and organising in living things
B. Cell stains dual extixtanze as distinct entity and building block
C. Cells form by free-cell formation

Answer 23

C

Question 24

How proposed a correction to the “Cell theory”?

Answer 24

Virchow

Question 25

What did Virchow propose to the "Cell theory" to replace cells form by free-cell formation?

Answer 25

All cells only arise from pre-existing cells

Question 26

What did Crick propose in 1958?

Answer 26

Central Dogma of Molecular Cell Biology

Question 27

What is the central dogma of molecular cell biology?

Answer 27

- 3 molecules can interact to pass detailed information (DNA to RNA to PROTEIN - Two step process: (1) transcription (2) translation

Question 28

What are the common mechanisms in all cell?

Answer 28

- Cells gather material from environment and duplicate - Information is stored and inherited by DNA - Information is partially transcribed into an intermediate form (RNA) - RNA contracts proteins (translation) - Proteins are the molecules that put genetic information into action - Enclosed in a plasma membrane across which material must pass

Question 29

Which sentence is correct: A) The cell is the complex unit of life B) The cell is the basic unit of life

Answer 29

B

Question 30

What are the features of the cell?

Answer 30

- All cells come form pre-existing cells by division - Cells contain hereditary information which is pass during cell division - All cells are basically the same chemical composition - All energy flow occurs with the cell

Question 31

How many cells does the human body consist of approximately?

Answer 31

10^14 (100,000,000,000,000)

Question 32

What are the five kingdoms of classification of life base on morphology?

Answer 32

- Plantae - Fungi - Animalia - Protista - Prokaryotae (Monera)

Question 33

What are the three domain classification of life?

Answer 33

- Bacteria - Archaea - Eukaryotes

Question 34

What is the domain classification of life based on?

Answer 34

Ribosomal RNA sequence

Question 35

Who proposed the domain classification of life?

Answer 35

Carl Woese 1977

Question 36

What are responsible for the diversity of plants?

Answer 36

Microbes

Question 37

What is the structure of a bacterium?

Answer 37

- Pilli - Cell wall - Ribosomes - Plasma membrane - Cytoplasm - Nucleoid (DNA) - Flagellum

Question 38

What is the structure of an animal eukaryotic cell?

Answer 38

- Plasma membrane - Golgi apparatus - Peroxisome - Mitochondrium - Lysosome - Endoplasmic reticulum - Nuclear membrane - Nucleus

Question 39

What is the difference in structure between monera and animal/protozoa cells?

Answer 39

Monera: circular DNA cell wall Animals/protozoa: Nucleus contains DNA mitochondria endomembrane system

Question 40

What is the difference in structure between monera and fungi?

Answer 40

Monera: circular DNA Fungi: mitochondria endomembrane system nucleus contains DNA Both: Cell wall

Question 41

What is the difference in structure between monera and plants?

Answer 41

Monera: circular DNA Plants: mitochondria endomembrane chloroplasts Both: Cell wall

Question 42

What is the difference in structure between animals/protozoa and plants?

Answer 42

Animals/protozoa: membrane Plants: chloroplast cell wall Both: mitochondria endomembrane Nucleus contains DNA

Question 43

What is the difference in structure between animals/protozoa and fungi?

Answer 43

Animals/protozoa: endomembrane Fungi: Cell wall Both: mitochondria endomembrane nucleus contains DNA

Question 44

What is the difference in structure between plants and fungi?

Answer 44

Plant: Chloroplast ``` Both: mitochondria endomembrane cell wall nucleus contains DNA ```

Question 45

Out of the five kingdoms of classification of life are prokaryotes cell?

Answer 45

Bacteria and archaea

Question 46

Out of the five kingdoms of classification of life are eukaryotic cell?

Answer 46

Animals, fungi and plants

Question 47

Which cell out of prokaryote and eukaryote have DNA enclosed in a nucleus?

Answer 47

Eukaryote

Question 48

What do endomembrane systems form?

Answer 48

Compartments

Question 49

What are compartments?

Answer 49

Membrane surrounded space