Bio Stuff 4

Question 1

Photosynthesis equation

Answer 1

6H2O + 6CO2 –> C6H12O6 (aq) +6O2(g)

Question 2

What does the photosynthesis equation represent?

Answer 2

Carbon dioxide+ Water converted through chlorophyll+sunlight= glucose and oxygen

Question 3

What are light and chlorophyll not considered as

Answer 3

Reactants or products

Question 4

What is the inverse of photosynthesis?

Answer 4

Cellular respiration

Question 5

Cellular respiration equation

Answer 5

C6H12O6(aq) + 6O2(g) —> 6CO2+ 6H2O+energy(ATP)

Question 6

What is ATP

Answer 6

Source of energy for use and storage at the cellular lever called adenosine triphosphate

Question 7

Where does cellular respiration occur?

Answer 7

Begins in cytoplasm and completed in mitochondria

Question 8

Cellular respiration

Answer 8

Breaking down simple sugars into carbon dioxide and water, releasing that energy in the form of ATP

Question 9

What occurs in the dark

Answer 9

Cellular respiration

Question 10

Which respite at a lower rate and why?

Answer 10

Plant tissue; need sunlight

Question 11

Leaf tissues and gas exchange

Answer 11

Gas exchange via passive diffusion is too lengthy, specialized cells are need to maximize this and provide reactants/remove products of the leafs cellular activities

Question 12

Dermal tissue

Answer 12

Made up of Guard cells (specialized), form tiny openings/pores called stomata; majority found on the underside of the leaf(underside of leaf)

Question 13

Stomata

Answer 13

Regulate gas exchange

Question 14

What is mesohpyll spongy tissue

Answer 14

Spongy; between palisade cells and lower epidermis, loosely packed, irregularly shaped, moves oxygen toward stomata for expulsion, moves CO2 from air toward palisade cells

Question 15

How do guard cells work

Answer 15

Control when stomata open or close, shrink to close stomata, swell up to open stomata (outer walls of guard cell thinner than inner walls so cell bulges outward causing stoma to open)

Question 16

How does light affect guard cells?

Answer 16

Swell due to increased turgor pressure, accumulate potassium ions

Question 17

How does water and temperature affect stomata?

Answer 17

When water is not readily available guard cells become limp and stomata close, (hot dry climates=less stomata)

Question 18

How does carbon dioxide affect stomata?

Answer 18

Lower co2=stomata open up more (loss of nutrients and protein? Polar charges)

Question 19

What are palaside tissue cells?

Answer 19

Found jus bellow upper epidermis, long, rigid, exposed to sunrays, responsible for photosynthesis has chloroplasts

Question 20

What is mesophyll

Answer 20

Two types of specialized cells; palisade and spongy mesophyll tissue cells

Question 21

Vascular tissue

Answer 21

Provides leaf with water for transpiration and photosynthesis, leaf veins contain vascular tissue

Question 22

What is a vascular bundle

Answer 22

Xylem and phloem tissues bunches together

Question 23

What are lenticels?

Answer 23

Natural openings; pores along woody stems and mature roots, provide pathway for gas exchange similar to stomata

Question 24

How are lenticels created?

Answer 24

Results of split in secondary outer tissues that replace epidermis

Question 25

What is cohesion?

Answer 25

Attraction of water molecules to other water molecules (gay)

Question 26

What is adhesion

Answer 26

Attraction of water molecules to other systems (straight)

Question 27

What is capillary action

Answer 27

Water molecules cling to each and other molecules

Question 28

Root pressure

Answer 28

Force that helps drive fluid upward into the water conducting vessels(xylem) Primarily generated by when rate of transpiration is low

Question 29

Transpiration Pull

Answer 29

Water molecules evaporating causes a pull on other water molecule, pulling water up xylem

Question 30

Transpiration and temperature

Answer 30

Higher temperature =higher evaporation rates

Question 31

Tonicity

Answer 31

the capability of a solution to modify the volume of cells by altering their water content