Plant Science Exam 2

Which of the following describes an herbaceous perennial plant?

Lives for more than two years and is not woody

The GROUND tissue of a plant is:

all tissue which is not vascular or dermal

Tissue which consists of living cells with thin primary cell walls, typically functioning in photosynthesis or storage is called___.

Parenchyma

Cell division, which results in new growth in plants, occurs at localized regions called___.

meristems

Where is the secondary cell wall found in a plant cell?

Between the plasma membrane and the primary cell wall

Root hairs are ___.

Elongated epidermal cells

Which meristem replaces cells crushed and sloughed off from the root tip during growth?

Apical

In a eudicot primary root cross section, the tissue between the epidermis and the endodermis is called the __.

cortex

The water-proof band of suberin found around the cell walls of the endodermis of roots is called the ___.

Casparian strip

Sugar beets from which table sugar is extracted are

storage roots

What is the function of guard cells?

Regulate the size of stomatal pores

Of the terms below, which is the incorrect description of leaf arrangements of a stem?

Combined

Where do the leaves of most plants have a greater density of stomata?

On the underside of the leaf

How are vascular bundles arranged in a monocot stem?

They are scattered throughout the stem

A difference between herbaceous stems and woody stems are:

lateral meristem growth

What is a rhizome?

A horizontal underground stem

Which of the following terms apply to water movement in plants?

cohesion, adhesion, and root pressure

Guttation represents morning dew on plants

-True or false?

False

In an herbaceous eudicot stem, the pith is located:

towards the inside of the vascular bundles

Stems function in:

Internal transport, growth, and structural support

An egg cell fertilized by a sperm cell results in a single diploid cell called a(n) __.

Zygote

What are the characteristics of bat-pollinated flowers?

Dull white petals, strong fruity scent, night-blooming

Which of the following is a simple fruit with several fused carpels?

Tomato

How do the sperm get to the egg in angiosperms (flowering plants)?

They are carried by the pollen tube

What is the ovule-bearing reproductive unit of a flower?

carpel

Which of the following structures develops into a seed?

ovule

What flower structure develops into a fruit?

ovary

Name the nutritive tissue formed in the developing seed following fertilization of the polar nuclei.

Endosperm

The absorption of water by a seed prior to germination is called ____.

Imbibition

Name the type of fruit derived from a single flower with many free carpels

Aggregate

Flowers pollinated by insects are usually:

yellow or blue

The secondary xylem is also known as:

wood

Which of these is not capable of secondary growth?

monocots

The generative cell in pollen, produces 1 sperm cells

True or false?

False (produces 2)

Xylem and phloem make up the:

vascular tissue system

Which process requires MEISOSIS?

sporophyte —> spores

Tracheids and vessel elements are both____ and part of the __

dead ; xylem

Pollen contains:

a tube cell and generative cell

Which of these cells have no nucleus?

sieve tube elements

How many megaspores survive? (after the ovule undergoes meiosis)

1

The MAIN function of the meristem is:

cell division

The red highlighted box in the image shows ___, they are extensions of _____ cells.

root hairs; epidermal

Which of the below do only MONOCOT roots have?

pith

This picture compare different leaf ___.

arrangements

Osmosis is the driving force for __ transport.

sugar

Fruits produced from ONE flower containing several carpels are __

aggregate fruits

Guard cell opening is triggered by:

blue light

Periderm is also known as _____ and is made by the ___.

outer bark; cork cambium

Which of theses forces does help water move upward?

root pressure, adhesion/cohesion, and transpiration

Sugar transport requires active transport

True or false?

True

Which of these is the male part of a flower?

anther

What is the dark blue region?

vascular cambium

The central cell is fertilized and becomes ____, its ploidy is ___

endosperm; 3n

DICOT stems have a ___ arrangement of vascular bundles and _____ have a pith

radial; do

A flower that is white and blooms at night is most likely pollinated by:

bats

In this photo, the leaf form is ___, the arrangement is _____.

palmately compound; whorled

Ovules mature into ___, ovaries mature into ___.

seeds; fruit

Fruits produced from fused carpels from MANY flowers are:

multiple fruits

Parenchyma, collenchyma, and sclerenchyma cells make up:

ground tissue system

A root is not uniform along its length but has distinct zones. Starting at the tip, these zones are which of the following?

Root cap -----> apical meristem ------> zone of elongation ------> zone of maturation/root hairs

The leaf of poison ivy has three leaflets attached to the end of the petiole. This leaf is:

palmately compound

Which of the following is the order in which flower parts are attached to the receptacle, from lowest to highest?

Sepals ----> petals ----> stamens ----> carpels

Root hairs are part of the

epidermis

The vascular bundles of herbaceous eudicot stems are

arranged in a ring around the pith

In plants with secondary growth, the "wood" is

the secondary xylem

Special openings at the tips of leaf veins through which liquid water is exuded are -------.

hydathodes.

How do the sperm get to the egg in angiosperms?

They are carried by the pollen tube.

A fruit developing from a single flower with many separate ovaries, such as a blackberry is called____.

aggregate

The leaf abscission zone is

at the base of the petiole