lab 8

Question 1

outer layer of cells on plant leaves

Answer 1

epidermis

Question 2

openings that allow the leaf to bring in carbon dioxide and release oxygen

Answer 2

stomata

Question 3

plants are capable of opening and closing them

Answer 3

stomata

Question 4

cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata.

Answer 4

guard cells

Question 5

layer of wax outside the epidermis that aid in water retention

Answer 5

cuticle

Question 6

cells are elongated and form a single layer. contain more cholorplasts

Answer 6

palisade mesophyll

Question 7

irregularly shaped with spaces that allow the passages of gases between the stomata and palisade mesophyll cells

Answer 7

spongy mesophyll

Question 8

molecule that absorbs certain wavelengths of light and transmits other wave lengths

Answer 8

pigment

Question 9

device that calculates, for a specified wavelength of light, how much light is absorbed and transmitted by a particular substance

Answer 9

spectrophotometer