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