Plant cells with thick walls that provide support to stems and leaves are:

• schlerenchyma cells
• parenchyma cells
• collenchyma cells
• xylem cells

collenchyma cells

Aerial roots are the precursor to prop roots.

• True
• False

True

A modified stem that has nodes and internodes and grows horizontally underground is called a:

• rhizome
• stolon
• corm
• tuber

rhizome

Leaves found on plants in deserts typically:

• are large to maximize sun exposure for photosynthesis
• have a thin cuticle layer as the waxy coating can hold in absorbed heat
• have a smaller surface area
• almost always have their stomata open to allow for rapid gas exchange

have a smaller surface area

Which of the following is correct?

• root hairs are extensions of root epidermal cells
• root hairs increase the surface area of the root
• root hairs help absorption of water and minerals
• all of the above are correct

all of the above are correct

If you keep fruit in a bag, it may ripen quicker - this is due to

• abscisic acid formation
• ethylene gas
• cytokinins
• gibberellins

ethylene gas

Thorns are modified

• stems
• leaves
• roots
• branches

branches

These structures contain meristematic tissue that contribute to primary growth.

• apical meristems
• dermal tissues
• lateral meristems
• intercalary meristems

apical meristems

A carrot would be an example of a

• root cap
• tap root
• modified stem
• fibrous root

tap root

Plants sense gravity with

• cytokinins
• statoliths
• phytochromes
• auxins

statoliths

A waxy region on the walls of endodermal cells is known as the

• stele
• pericycle
• cuticle
• Casparian strip

Casparian strip

Which of the following is true?

• Many vegetables we eat are modified epiphytic roots
• Roots are only found below the soil surface
• Aerial roots develop from the main trunk of the tree
• Prop roots develop from branches

Prop roots develop from branches

Sunshine mimosa leaves wilt when touched this is due to

• thigmonastic response
• thigmomorphogenesis
• thigmotropism

thigmonastic response

Which of the following is false?

• Negative water potential draws water into the root hairs
• Cohesion and adhesion draw water up the phloem
• Transpiration draws water from the leave
• Water enters the plant through roots hairs

Cohesion and adhesion draw water up the phloem

Which of the following describes how plants can tell time?

• phototropism
• photosynthesis
• photoperiodism
• photojournalism

photoperiodism

Carnivorous plants have to supplement their diet by eating insects as the soil they typically grow in lacks

• phosphorus
• sulfur
• carbon
• nitrogen

nitrogen

In a monocot can be identified as the stems will have vascular bundles scattered throughout, and the roots will have a distinct "X" or "Y" shape of arranged vascular bundles

• True
• False

False

Small hairs on a leaf surface are known as

• thorns
• trichomes
• spikes
• stipules

trichomes

Most photosynthesis occurs in the

• palisade parenchyma
• spongy parenchyma
• upper epidermis
• cuticle

palisade parenchyma

Which two layers in the plant stem are made of parenchyma cells?

• cortex and pith
• xylem and phloem
• schlereid and fibers
• both vascular bundles

cortex and pith