6.06 Plant growth, cells, and tissues

Analysis Questions

What was the best placement for the pansies, hyrdrangeas, and sunflowers? Explain your answer.

The pansies belonged in the first row because they prefer shade, the sunflowers in the second row because they like a bit of light, and the hydrangeas in the third row because direct sunlight is the best for them.

Analysis Questions Cont.

Desrcibe the process of germination and plant growth you observed in the lab activity for a monocot plant.

What pH level did you select for plant growth? Describe the observations of your plants at this level. Based on your data, what was the best pH for optimum plant growth?

A monocot plant has a single cotyledon. The cotyledon contains all of the endosperm. When germination occurs, the cotyeldon sprouts hair-like roots and begins to grow into a bulb. Next, the cotyledon will break open, and as the leaves begin to grow upwards, it will remain below the soil. A monocot's roots will continue to grow down, sort of similar to how a tree's does, with many roots branching from the bulb.

Describe the process of germination and plant growth you observed in the la activity for a dicot plant.

I selected the high pH because it seemed to be the best choice as a compromise on the individual plants needs. At this level all of the flowers grew fairly tall, but the pansies grew purple/blue but the hydrangeas grew pink. Based on my observations, a lower pH may have been better for/or at least produced blue instead of pink hydrangeas. But, overall, I think the lower pH would not have been the better choice because it wouldn't be as good for the sunflowers or pansies.

A dicot has many cotyledons that all contain endosperm. The germinatio of a dicot begins with the growth of a single root that grows downwards, providing more room for sub roots. The rootsthen grow in a hair-like way, remaining attached as the stem grows upwards. Eventually the stem will break through the soil and begin to develop leaves.

Describe your observations for plant growth at zero gravity.

When I turned off gravity the plants were very unhealthy. They drooped and curved into awkward positions and wer not as green or lively as they were with gravity.

Anaylisis Questions Cont.

Which of your plants was a dicot? Which was a monocot? How could you tell?

The sunflowers and pansies were dicots, I know this because they developed a taproot. The hydrangeas were monocots, I know this because they begain with hair like roots.

What was the correct level of water for germination? Why did this water level work for all of the plants in the garden?

The best level was 2cm., it allowed for all of the plants to be very healthy. I chose 2cm. because although sunflowers could withstand drought conditions, hydrangeas preferred to be watered everyday(though not necessarily a large amount) so 2cm. seemed like a reasonable compromise.

What water level did you select for plant growth during your first attempt? Describe the observations of your plants at this level. Based on the data, was the level you picked best for optimum growth.

I used the correct amount of water on the first try. At 2cm. the plants grew pretty tall in height and the hydrangeas produced pink flowers while the pansies produced blue/purple flowers.

Hypothesis

If I plant a garden of pansies, sunflowers, and hydrangeas in soil with high pH and water all of these flowers with two centimeters of water each day, all three types of flowers will grow healthily. I believe this to be the correct pH because it seems like a good compromise between the pansies' desire for "slightly acidic soil", the sunflowers' desire for "rich soil", and the hydrangeas' ability to adjust to different pH, although it does adjust the produced flowers' color. For the water, I think this is a well thought out hypothesis because I went for a good compromise between the hydrangeas' thirst for "daily rain or watering" and the sunflowers' ability to "withstand brief drought conditions", however this hypothesis is not supported by any background of pansies' watering preferences.

6.06 Plant growth, cells, and tissues

Virtual Garden Observation Chart A

Day 1

Day 2

Day 3

Day 4

Day 5

Day 6

Day 7

Day 8

Day 9

Pansies

Row 1

Dicot, the

seed is

slightly

elongated,

fairly small

Dicot, there

is a single

"tap root"

sprouting

from the

seed

Dicot, the

single root

tapers into

many, a

bit of green

sprouts from

the soil

Dicot, the

hypocotyl

has risen

above the

soil with

the cotyledon

Dicot,

leaves have

begun to

sprout from

the cotyledon

Dicot, the

sprout is

curved and

longer,the

cotyledon

still present

Dicot, the

leaf sheath

has begun to

dry out,

leaving

two leaves

Dicot, the

plant has

grown taller and

larger, still

shedding

the sheath

Sunflowers

Row 2

Dicot, there

is a single

"tap root"

sprouting

from the

seed

Dicot, the

seed,is a

good bit

elongated.

larger than

the others

Dicot, the

hypocotyl

has risen

above the

soil with

the cotyledon

Dicot, the

single root

tapers into

many, a

bit of green

sprouts from

the soil

Dicot,

leaves have

begun to

sprout from

the cotyledon

Dicot, the

sprout is

curved and

longer,the

cotyledon

still present

Dicot, the

leaf sheath

has begun to

dry out,

leaving

two leaves

Dicot, the

plant has

grown taller and

larger, still

shedding

the sheath

Hydrangeas

monocot,

the seed

is very

round,

bulbous.

Row 3

monocot,

the green

leaves

sprout above

the soil

monocot

some green

(leaves?)

are bursting

out of the

top of the

seed

monocot

there are

several

hair-like

roots

branching

out of the

bottom of

the seed

monocot,

three leaves

have come

from their

sheath

monocot,

the leaf

sheath is

drying out,

leaving four

grass-like

leaves

monocot,

leaves appear

to be around

a green bud

monocot,

the leaves

have left

their

covering,

roots have

lengthened

Virtual Garden Observation Chart D

Gravity- on

Row 1

Row 2

9 Days

Row 3

Healthy Healthy Healthy

2 weeks

Virtual Garden Observation Chart B

Healthy Healthy Healthy

Water- 2 cm.

Row 1

Row 2

4 Weeks

Row 3

9 Days

Healthy Healthy Healthy

A very dark green, low to the

ground sprout with two

leaves

A medium height light green

sprout with two leaves

A fairly small medium green sprout with many hair-like leaves surrounding a green bud

2 Weeks

Healthy Healthy Healthy

6 Weeks

six leaves, three on each side low to ground. Very green

Four leaves, two per side two larger

, two smaller fairly tall. A brown bud

in the center of the top. Very green

many smaller leaves sprouting from different branches, low to the ground. Very green

Healthy Healthy Healthy

4 Weeks

Healthy Healthy Healthy

It has grown in height, still very green

many more leaves and buds have

branched off the plant

Significantly taller, still very green

the leaves have gotten larger as

well as the brown bud/center

Plant

Height

The plant has grown taller,

resembles a bush, very green

it has sprouted more leaves and buds

9 in.

6 Weeks

Healthy Healthy Healthy

The plant has sprouted three

purpley blue flowers from the buds

15ft.

The plant has grown a lot taller it now

has a yellow flower at the top

with a light brown center that has a green

dot in the middle

The plant has many groupings of pink

sprouted from it.

6ft.

Plant

Height

9 in.

15 ft.

6 ft. pink flowers

Throughout the weeks the plants just got continuously more long and squiggly and droopy.

Virtual Garden Lab Observation Chart C

Soil PH- high

Row 3

Row 2

Row 1

Healthy Healthy Healthy

9 days

A fairly small medium green sprout with many hair-like leaves surrounding a green bud

A medium height light green

sprout with two leaves

A very dark green, low to the

ground sprout with two

leaves

Healthy Healthy Healthy

many smaller leaves sprouting from different branches, low to the ground. Very green

2 weeks

Four leaves, two per side two larger

, two smaller fairly tall. A brown bud

in the center of the top. Very green

six leaves, three on each side low to ground. Very green

Healthy Healthy Healthy

The plant has grown taller,

resembles a bush, very green

it has sprouted more leaves and buds

Significantly taller, still very green

the leaves have gotten larger as

well as the brown bud/center

4 weeks

It has grown in height, still very green

many more leaves and buds have

branched off the plant

Healthy Healthy Healthy

6 weeks

The plant has many groupings of pink sprouted from it.

The plant has grown a lot taller it now

has a yellow flower at the top

with a light brown center that has a green

dot in the middle

The plant has sprouted three

purpley blue flowers from the buds

9 in. 15ft. 6ft, pink flowers

Plant height