Plant Leaves

Question 1

Arises from the shoot apical meristem

Answer 1

Plant leaves

Question 2

is the first indication that a new leaf is on its way to maturity

Answer 2

Leaf primordia

Question 3

A ______ elongates until a flattened blade appears

Answer 3

bulge

Question 4

Another term for bulge

Answer 4

leaf buttress

Question 5

The petiole has two-leaf like flaps called

Answer 5

stipules

Question 6

Leaves that are directly attached to the stem

Answer 6

Sessile leaves

Question 7

Cells of the top layer of the leaf are collectively known as _____

Answer 7

epidermis

Question 8

Function of epidermis

Answer 8

protect leaves from water loss, abrasions, and entry of microorganisms

Question 9

regulates exit and entry of gases

Answer 9

stomata

Question 10

On each side of the stomata are the ____ which opens and closes

Answer 10

guard cells

Question 11

When water is present, guard cells ______ allowing stomata to open

Answer 11

swell

Question 12

a waxy layer that covers the leaf blade

Answer 12

cuticle

Question 13

Cover to prevent invasive microorganism

Answer 13

cuticle

Question 14

plants that form symbiotic relationships wit fungi

Answer 14

endophytes

Question 15

Other name of leaf hair

Answer 15

Trichomes

Question 16

function of trichomes

Answer 16

prevent water loss, regulate heat, and may contain toxic substances

Question 17

In between the upper and lower epidermis

Answer 17

mesophyll

Question 18

Where photosynthesis takes place

Answer 18

mesophyll

Question 19

A picket one layer thick

Answer 19

palisade mesophyll

Question 20

Vascular bundles inside the petiole and leaf blades

Answer 20

leaf veins

Question 21

Leaf veins form under the influence of what hormone?

Answer 21

auxin

Question 22

web-like formation of veins

Answer 22

netted-venation

Question 23

Goes from petiole to the lead apex in straight unidirectional lines

Answer 23

parallel pattern

Question 24

Parallel venation is also called _____

Answer 24

Striate venation

Question 25

Arrangement of the leaves is called _____

Answer 25

Phyllotaxy

Question 26

response of plants to touch

Answer 26

Thigmotropism

Question 27

what allows floating leaves to remain buoyant

Answer 27

extra cells in between the mesophyll

Question 28

Why is stomata found underneath the leaf blade

Answer 28

to avoid too much loss of water when exposed to sunlight

Question 29

Upper epidermis

Answer 29

Xylem

Question 30

Lower epidermis

Answer 30

Phloem