Plants

Question 1

Photoperiodism

Answer 1

Photoperiodism is the physiological reaction of organisms to the length of night or a dark period. It occurs in plants and animals. Photoperiodism can also be defined as the developmental responses of plants to the relative lengths of light and dark periods.

Question 2

photoreceptor

Answer 2

a specialized protein that is able to detect and react to light

Question 3

photomorphogenesis

Answer 3

the regulatory effect of light on the growth, development and differentiation of plant cells, tissues and organs

Question 4

phototropism

Answer 4

the movement of a plant toward or away from light

Question 5

phytochrome

Answer 5

phytochrome: any of a class of pigments that control most photomorphogenic responses in higher plants

Question 6

chromophore

Answer 6

: the group of atoms in a molecule in which the electronic transition responsible for a given spectral band is located

Question 7

Nitrogen

Answer 7

Its the process of going from the atmosphere into the soil vía decay and it transform back up through plant to life. Nitrogen deficiency in plants hinders growth. New leaves will take up the nitrogen leaving older leaves without. Older leaves turn yellowish green and spindly stems

Question 8

Potassium

Answer 8

It helps build proteins in the plant. It slows down photosynthesis with lack of potassium. A weak stem is a sign. The step ATP creates the way for photosynthesis

Question 9

How much humus have we lost

Answer 9

2 thirds in the last 200 years from extractive agriculture.

Question 10

The basis of a good scientific investigation is

Answer 10

Using hyptheiss

Question 11

An oxygen molecule contains

Answer 11

Each molecule is made up of two oxygen atoms that are strongly joined together.

Question 12

By 2050, the amount of arable land is predicted to be about

Answer 12

20 % pf the earths surface

Question 13

A carbon dioxide molecule contains

Answer 13

carbon dioxide molecule contains one carbon atom and two oxygen atoms

Question 14

Cloche

Answer 14

A plastic covering for garden

Question 15

Cotyledon

Answer 15

The first tiny leave on a plant after germination

Question 16

Dead head

Answer 16

To remove dead flowers from a plant

Question 17

Guerilla gardening

Answer 17

Taking of abandoned land without permission

Question 18

hardening off

Answer 18

Getting plants ready for outside weather by slowly taking them outside for extended periods of time

Question 19

Over winter

Answer 19

the time from fall to spring a plant can be out. Or covering garden

Question 20

Taproot

Answer 20

A plant who starts roots downward

Question 21

Propagation

Answer 21

Taking part of an original plant and creating a new one. By root or cutting

Question 22

perennial herb plants need what every 3 years

Answer 22

Propagation, splitting every 3 years or so

Question 23

3 main nutrients for plants

Answer 23

Nitrogen potassium phosphorus

Question 24

Phosphorus

Answer 24

Needed for flowering (snow peas zucchini’s are flowering) turns carbohydrates into sugar.

Question 25

Aerate

Answer 25

Bringing oxygen to something

Question 26

Green manure

Answer 26

Using a fast growing cover crop chopping in up and layering it under soil. Helps with weeds

Question 27

Heterotrophs

Answer 27

Grow by consuming organic molecules. First organisms on the planet

Question 28

Use light energy to produce organic molecules to grow

Answer 28

Autotrophs

Question 29

How many trees are cut down per year

Answer 29

The size of France is cut down trees per yearu almost 50,000,000 per year. That’s 1 trillion leaves per day

Question 30

Annual/ perennial

Answer 30

A plant that completes its cycle in a season or year. Seed to plant to flower and seed again and than the plant will die. Perennial last longer than a 2 years

Question 31

Amendment

Answer 31

adding ingredients to soil to help it