PLSC120 Winter 2025 Final

Alfalfa is in the family

Fabaceae

Flowers in this family have 3 petals, one of which is variegated, modified, and called labellum

Orchidaceae

Which of the following is NOT a monocot family

Fabaceae

This plant is NOT in the Arecaceae

Vanilla

Most species in this family produce poisonous alkalods such as nicotine

Solanaceae

This family is characterized by nitrogen fixation

Fabaceae

This family is characterized by hollow cylindrical stems called culms

Poaceae

An example plant for the Solanaceae is

Eggplant

This plant is NOT in the Laminaceae

Vanilla

Wheat is in the ____ family

Poaceae

Many plants in this family are characterized by having flowers in heads

Asteraceae

The right way to write the scientific name for this plant is

Prunus Japonica

The inflorescence of the species in this family looks like an umbrells

Apiaceae

Cabbage is in the genus

brassica

which one is the lowest taxon (taxonomic level)

variety

Malus is in the

rosaceae

Lactuca is a genus in the

asteraceae

second largest plant family (with highest number of genera and most diverse)

asteraceae

broccoli is a plant in the

brassicaceae

the binomial name of a plant is composed of

genus and species

A dioecious plant is a plant that

has male and female flowers on different plants (either male or female parts)

which of the following is an example of meristematic tissues

vascular cambium

which of the following is an example for dioecious plants

cannabis

a monoecious plant is a plant that

has male and female flowers on the same plant

light intereption in cells is preformed by the

grana

which of the following is NOT an example for dermal tissues

cortex

which of the following is an example for monoecious plants

squash

In plant cells, respiration to produce ATP takes place in the

mitochondria

which one of the following statements is false about phloem

phloem cells move water upwards to the leaves

this organnelle is responsible for turgidity in plant cells

vacuole

For cell respiration to take place it needs

CO2

Which statement is right with regard to the calvin cycle reactions

rubisco fixes CO2

photorespirtation happens during

drought conditions

which statement is TRUE with regard to C4 plants

in C4 plants, the calvin cycle takes place in the bundle sheath cells

which statement is right with regard to light-dependent reactions

they occur in the grana

end result (stable products) of photosynthesis is

6 carbon molecule and O2

which is right with regard to the calvin cycle reactions

for every 5 carbons invested, the calvin cycle fixes 1

What is the name of the enzyme in the hatch-slack cycle?

PEP Carbolyxase

Photorespiration means

Rubisco fixes O2 instead of CO2

which statement is right with the light-dependent reaction inputs

light-dependent reactions need photons and water

Which one of the following will be easiest to leach in a clay soil

NO3-

which of the following statements is true with regard to soil water

clay soils have a high water holding capacity than sandy soils

increasing the cation exchange capacity

increases the nutrient pool in the soil

which of the following statements is TRUE with regard to soil pH and nutrient availability

neutral soil pH offers the best compromise to have both macronutrients and micronutrients

nitrogen deficency symptoms appear first on

older leaves

the major driving force for water movement up a plant is

transpiration pull and vapor pressure deficit

which statement is TRUE with regard to the influence of the environment on plant transpiration

lower relative humidty increases transpiration rate

One of the following is not a reason for nutrient defecincy in plants

disease or injury in the root system

which one of the following statements is TRUE with regard to source-sink definitions of plant organs

a flower bulb is a sink when the plant is actively photosynthesizing

Which statement is TRUE with regard to photosynthesis

photosynthates can move in all directions in the phloem tissues

Photosynthesis takes places primarily in the

mesophyll cells

what is the number 1 pointing to (between the stem and the leaf there is a ___)

bud

binomial name for a plant is composed of

genus and species

mycorrhizae are

beneficial fungi that form symbiosis with the root system

the MOST important root function is

water and nutrient absorbtion

This organelle stores starch in plant cells

amyloplast

part number 4 pointing to (central part of a leaf)

mid-rib

this family is charactersized by plants with bulbs or corms and basal leaves

amaryllidaceae

an example genus Fabaceae

pisum

which one of the following is a monocot family

orchidaceae

stone fruits are in the genus

prunus

many species in this family are herbaceous vines with tendrils and many seeded fleshy fruit

cucurbitaceae

Which one of the following is an example for monoecious plants

corn

wheat is in the ____ family

poaceae

calyx is the name for

a set of sepals

prunus is a genus in the:

rosaceae

secondary roots arise from this area

zone of maturation

this plant is in the fabaceae

alfalfa

this family is the largest by number of species

orchidaceae

part of the flower that is the larger oval on the skinny stem-like thing

anther

this plant is in the arecaceae

coconut

what is part 3 pointing to (little stem holding leaf to stem)

petiole

which one of the following root parts is mostly composed of meristematic tissues

zone of cell division

weird bottom of vase shape in a flower is called

ovary

this family is characterized by nitrogen fixation

fabaceae

green part on a tomato is called

sepal

allium is a genus in the

amaryllidaceae

citrus is a genus in the

rutaceae

what part is the large colored part on a flower

petal

the phloem can move materials

in all directions

skinny part of a flower holding up the anther

filament

which is not a dermal tissue

cortex

an ecample genus for the poaceae is

triticum

which is not a monocot family

solanacaea