Plant structure

What are the three principles organs of seed plants?

Roots.Stem and leaves

What are the functions that roots perform?

They anchor plants in the ground,They absorb water and nutrients from soil And they hold plants upright

What is the transport system of stem do?

They transferred nutrients

The principal organs in which plants carry out photosynthesis are the

Leaves

What is the adjustable ports of leaves how conserve, and what do they allow to and what do they allowed to enter and leave a plant

Adjustable pores in Leaves help conserve water while letting oxygen and carbon dioxide Enter and exit the lease

Where are the three tissue systems of plants?

dermal, vascular, Ground

Dermal tissue typically consist of a single layer of

epidermis

what is the cuticle, and what is its function ?

waxing coating that prevents water loss

what does dermal tissue consists of in roots, and what is its function?

Root hair that help absorb water

whats the function of Xylem and what type of tissue is it and what cell types are within the tissue?

- Transports water
-Vascular tissue
-lignin

whats the function of Ploem and what type of tissue is it and what cell types are within the tissue?

- Transports food and water
-Vascular tissue
-companion

vessel elements

Xylem cells arranged end to end on top of one another

Tracheids

Long, narrow xylem cells with walls that are impermeable to water

Sieve tube elements

The main phloem cells

Companion cells

Pholem cells that surround sieve tube elements

The cells that lie between dermal and vascular tissue make up what kind of tissue

Ground tissue

Whats the function of Parenchyma

site of the most of plant photosynthesis

Whats the structure of parenchyma

cells with thin cell walls and large central vacuoles

what the function of collenchyma

help support plant organs

whats the structure of collenchyma

cells with strong , flexible cell walls

whats the function of sclerenchyma

make ground tissue tough and strong

whats the structure of sclerenchyma

cells with extremely thick, rigid cell walls

the only plant tissue the produces new cells by mitosis is called

meristem

what is an apical meristem

divide rapidly as stem and roots increase length

water enters the plant through the large surface are provided by the

root hairs

what protects the apical meristem of a root

root cap

where does most of the increase in root length occur

apical meristem

what are two functions of a plant's roots?

-absorb water
-dissolve nutrients from soil

what is true about acive transport of minerals in roots

-water molecules move into the plant by active transport
-ATP is the source of energy used to pump mineral ions from the soil into the plant
-The cell membranes of root hairs contain active transport protiens

what are two important functions of stems

-produces leaves and flowers
-transfers substances in the plant

what are three systems compose a stem

-dermal
-vascular
ground tissue

the structure of a leaf is optimized for what purposes?

Photosynthesis

what type of tissue covers a leaf

Dermal

The bulk of most leaves is composed of a specialized ground tissue known as

Mesophyll

How do the carbohydrates produced in photosynthesis get to the rest of the plant

The process of phloem

What is transpiration

loss of water through leaves

why must a plant have its stomata open at least part of the time

Allows carbon dioxide, water, and oxygen to diffuse in and out of the leaf

what would happen to a plant that kept its stomata open all the time

It would suffocate and die by drowning

what is the balance plants maintain that prevents them from losing too much water

Homoeostasis

True or false:
In general, stomata are closed at night

True

what combinations of factors provides enough force to move water through the xylem tissue of even the tallest plant

Adhesion and capillary action

Cohesion

Is the attraction of molecules with the same substances

Adhesion

Is the attraction of molecules with the different substances

The tendency of water to rise in a thin tube called

Capillary action