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