Week 1

Question 1

Neonicatiniod

Answer 1

A popular insecticide that is thought to contribute to the declining bee population

Question 2

Name 3 factors to declining bee populations

Answer 2

• Habitat Loss
• Insectidcide use
• infection by mites, fungim, and viruses

Question 3

How many mass extinction events have there been

Answer 3

5

Question 4

Speciation

Answer 4

The evoluition of new species

Question 5

Prokaryot

Answer 5

Plant Cell

Question 6

Eukaryot

Answer 6

Animal Cell

Question 7

Differences bteween prokaryotic and eukaryotic cells

Answer 7

Prokaryot have cell wall, no membrane bound nuclueos, house DNA in the nucleoid

Eukaryotic have a nucleus that house the DNA

Different shape - animal round, plant square

plant cells contain chloroplasts

Question 8

4 common features between all types of cells

Answer 8

Plasma membrane
Cytoplasm
DNA
Ribosomes

Question 9

Plasma Membrane

Answer 9

Phospholipid Bilayer surrounding the contents of a cell

Question 10

Cytoplasm

Answer 10

Jellylike substance inside the cell

Question 11

What are genes and what do they encode?

Answer 11

Individual hereditory units that encode the info required to synthasize RNA and protiens

Question 12

Ribosomes

Answer 12

Make proteins

Question 13

Fluid Mosaic model

Answer 13

Currennt view of the structure of cell membranes

Question 14

Cell adhesion molecules

Answer 14

Protein that attaches cells to each other

Question 15

Recepter protein

Answer 15

Bind to specific molecules hat can then signal a particular cellular response

Question 16

Transport protein

Answer 16

Facilitate transport of molecules such as sugars, proteins, and ions

Question 17

Cytoskeleton

Answer 17

A complex network that facilitates transport within a cell

Question 18

What does the mitocondria produce and what is the purpose of what it produces

Answer 18

ATP - chemical energy for cells

Question 19

What are the 4 different functions of membrane proteins

Answer 19

Recognition
Cell adhesion
Recepter
transport

Question 20

Endoplasmic Reticulum

Answer 20

sythesis, modification, and transport of proteins.

Membrane synthesis

Question 21

Which ER is studded with proteins

Answer 21

Rough ER

Question 22

What is the function of the smooth ER

Answer 22

The site for assembly and breakdown of lipids and carbs and detoxification

Question 23

What is the structure and purpose of the golgi body

Answer 23

A stack of flattened cells

Modifies proteins coming from the rough ER

Question 24

Vesicles

Answer 24

Transport vehicle for materials

Question 25

Lysosome

Answer 25

Breaks down cell parks

Question 26

Chloroplast

Answer 26

Responsible for photosynthesis Has a double membrane Gives the color to plants

Question 27

What happens when the fats in the cell membrane are more saturated

Answer 27

Straigther tails - more tightly packed together, less viscous

Question 28

What is passive transport?

Answer 28

The movement of material intop the cell using no energy, just the difference in energy between the inside and outside of the cell

Question 29

Active transport

Answer 29

Energy required for movement

Question 30

Exocytosis

Answer 30

Vesicles carrying protiens out of a cell

Question 31

Endocytosis

Answer 31

Vesicles carry materials into a cell Either by cell membrane fusion or recepter based

Question 32

What are the 4 nucleobases of DNA

Answer 32

Adenine Cytosine Guanine Thymine

Question 33

What are the 4 nucleobases of RNA

Answer 33

Adenine Cytosine Guanine Uracil

Question 34

Nucleoid

Answer 34

What DNA is packaged inside in a prokaryotic cell, twisted as a coil

Question 35

Histone Proteins

Answer 35

What DNA is tightly wound around to form nucleosomes

Question 36

chromatin

Answer 36

The DNA and protiens packed together in a cell, the entire package of DNA

Question 37

Explain the 2 steps of gene expression

Answer 37

DNA -> Transcription -> RNA -> Translation -> Protein

Question 38

What is Cell Theory

Answer 38

1. All organisms are comprised of one or more cells 2. The cell is the basic structural unit of all living organisms 3. Cells arise only from the division of pre-existing cells