Science Unit 1 Test Study Guide
plants not needing soil nitrogen
legumes
Organic farming grows ___________ food than chemical farming.
less
What does the sun supply to a leaf?
light energy
needed by chlorophyll
magnesium
A starch molecule is like a:
reservoir of energy chemical battery
Plants are anchored in the soil by:
roots
Be sure to know the leaf diagram found on: Lesson 2 Photosynthesis: Location
cuticle ( waxy layer) chloroplast vein palisade layer stomata
When plants and animals die and decay, they become:
fertilizer
produces larger varieties
gibberellin
The plant food which is made by photosynthesis is called:
glucose
Most plants absorb the nitrogen which they need from the ______________.
ground
Scientists are trying to find chemicals that will be helpful to agriculture but which will not___________ the environment.
harm
The _____________ of leaves stores water and food.
spongy layer
Cells in a plant's ____________ provide support so that the plant can remain upright.
stem
Openings on the underside of a leaf which regulate evaporation are called:
stomata
The function of the root cortex is to:
store food and water
Starch breaks up into simple units called:
sugars
The main purpose of a leaf is:
to make plant food
The part of the leaf which is connected to the transport system of the stem and roots is the:
veins
The cuticle of a leaf is a __________ layer which helps prevent excessive evaporation.
waxy
Many scientists have concluded from all these observations about plants that the complex process of photosynthesis which sustains life on earth _____________ have started by accident.
could not
In what Scripture does God tell us that plants are for the needs of people and animals?
Genesis 1:29-30
_____________ are complex molecules.
Proteins
____________ absorb water and minerals from the soil
Roots
_______________often do not know why plants can function as they do.
Scientists
What is true about cells in animals?
They cannot produce food.
The wonders and mysteries of plants provide evidence for:
creation intelligent design
_______________ means to move something from one place to another.
Transport
Three plant-like organisms which cannot produce their own food are:
Yeasts Mold Mushrooms
An organism that carries on photosynthesis in each cell is called:
algae
forms roots on stem cuttings
auxin
A tree or plant _______________ without its bark or epidermis.
cannot live
Which two chemical substances are needed to begin the photosynthesis factory process:
carbon dioxide chlorophyll
The green chemical in plants which is needed to produce food is:
chlorophyll
causes plants to grow from plant tissue
coconut milk
Each green cell containing chlorophyll in a plant is a ___________ complex factory.
complete
A leaf is a __________ combination of various chemicals.
complex
synthetic fertilizer
manufactured chemicals
animal waste; fertilizer
manure
taken in by plant roots
minerals and water
needs nitrogen from soil
most plants
Water and minerals move to the center of the root by:
movement from cell to cell
Legumes are plants that produce:
nitrogen compounds
The gas that goes out of the leaf through the stomata is:
oxygen
Which layer carries out photosynthesis in a leaf:
palisade
Maple sap is drained from the __________ of the trees
phloem
Dead cells which remain at the center of the stem are called:
pith
The basic food of all animals and people is:
plants
Some plant ______________ are made from arsenic and lead, which are very poisonous to animals and fish.
regulators