Science Unit 5

genes are made of this substance

DNA

What was the solution for this problem in India?

Development of dwarf genes that helped improve the food supplies of Mexico.

green plants

God's preparation

What is mean't by the phrase " plants are green factories"?

It is mean't by the process of photosynthesis. Plants take in carbon dioxide which animals breath out. This taking in will eventually produce oxygen from the plant which people and animals need to survive.

What was the problem in Indian agriculture?

Machinery, technology, and crop varieties did not advance for farmers. Also due to drought.

starvation of world

Malthus

150 bushels per acre

Punjabi farmer

Tiny chambers were first observed and described from microscope observations by a man named _____________.

Robert Hooke

Tiny chambers were first observed and described from microscopic observations by a man named __________.

Robert Hooke

What are three cell activities associated with the cell body, or organelle?

The control center of the cell is the nucleus. The plasma membrane allows certain materials in and out of the cell. Mitochondria produce energy needed for the cell.

What is the meaning of the statement "...man shall not live by bread alone..."?

There are three kinds of food: food for the body, food for thought, and spiritual food.

root

absorption

In the presence of oxygen as a gas.

aerobic

An agricultural science that deals with crop production and improvement.

agronomy

soybean

amino acid crop

cells, tissues, and internal design of plants

anatomy

plant that grows and dies in a year

annual

Four stages in growth are __________,___________,____________,and___________.

birth, rapid growth, maturity, death

Four main zones of a root tip are _________,________,__________,and____________.

cap, elongation, differentiation, meristem

Four main zones of a root tip are ____________,____________,_______________,and__________.

cap, elongation, differentiation, meristem

The statement," All plant and animal tissue is made up of tiny units," is known as the ______________.

cell theory of life

layers of cellulose outside the cell

cell wall

Robert Hooke called the tiny cork chambers he observed __________.

cells

Chloroplasts contain a green substance called ____________.

chlorophyll

food-making body

chloroplasts

The orange color of carrot roots and of marigold flowers comes from cell bodies known as __________________.

chromoplasts

The orange color of carrot roots and of marigold flowers comes from cell bodies known as _______________.

chromosomes

The thread-like objects in the nucleus are the ___________ and carry the ______________ of inheritance.

chromosomes, genes

Four parts of a seed are __________,_____________,__________,and______________.

coat, endosperm, cotyledon, embryo

food supply, part of the embryo seed plant

cotyledon

The food for the embryo plant in the seed may come from either the _____________ or the ____________.

cotyledons or endosperm

bean

dicot

maturates, develops specialized function

differentiate

Archaeological findings show the beginnings of civilization coincide with, or are the same as, __________________.

domestication

Malthus, an English economists, in the 1800s predicted ______________.

drought

a factor in crop failure

drought

food supply, not part of the embryo seed plant

endosperm

running down

entropy

organic catalyst, helps to cause other reactions

enzyme

true or false? A simple cell is a good description since most cells are so small and influence so little in life.

false

true or false? Between five and ten different types of cells are in the human body.

false

true or false? Cell activities are controlled by chemical messengers from the vacuole.

false

true or false? India is probably the only country in the world with a hunger problem.

false

true or false? Many of the hunger problems are caused more by greed and bad politics than plants that will not produce more.

false

true or false? The bodies that break down food molecules to form DNA are the ribosomes.

false

true or false? The facts of why onion cells produce an onion and not a walnut are well known to scientists.

false

true or false? The main difference among plants size: trees, shrubs, herbs.

false

true or false? The meristematic cells of a carrot could produce a tree or an elephant just as easily.

false

true or false? The root cap cells elongate and differentiate forming phloem and xylem.

false

true or false? Trees get wider when the vascular cambium adds new phloem to the rings of wood inside.

false

Two main types of plant roots are __________ and ____________.

fibrous and taproot

Plants have been a gift from God to people through the ages by providing _________,___________,and______________.

food, shelter, clothing

leaf

food-making

crop improvements

green revolution

Production increases have been made possible by setting up new work systems, using new inventions, and organizing and monitoring in new ways. These science revolution periods in history are better known as _________,___________,and______________.

industrial, technological, management revolutions

The function of ribosomes is _____________.

producing protein

fruit

seed dispersal

flower

seed production

true or false? A seed may be described as a pre-packaged miniature plant.

true

true or false? God's great care for life on earth is shown in the intricate detail and beauty in even microscopic life.

true

true or false? If we are to be better stewards of God's creation, we must have a better understanding of plants and animals that share our world.

true

true or false? India's history of starvation was changed when a new dwarf wheat variety was introduced to Indian agriculture.

true

true or false? Meristematic cells of different kinds of plants may look alike, but the DNA messages are different.

true

true or false? One definition of life is an uninterrupted succession of cells.

true

true or false? One reason plants do not move is the rigid walls of the cells.

true

true or false? Plant cells are miniature factories that make thousands of chemical compounds for themselves and the whole world.

true

true or false? Programs to increase food supply and improve food quality are being started in many parts of the world.

true

true or false? The cell communication system for chemical messages and materials is thought to be the membrane system known as endoplasmic reticulum.

true

true or false? The vascular cambium is one example of cells that are merstematic, that is, staying young or continuing to divide.

true

A part of the plant cell that may contain crystals or poisons harmful to living protoplasm is the __________.

vacuole

The most widely grown food crop is ___________.

wheat

triticale

wheat x rye

xylem

wood

What are three ways plant cells differ from animal and human cells?

1. Plant cells have chloroplasts 2. Plant cells have a cell wall 3. Plant cells have large vacuoles

What are two ways plant cells are like animal and human cells?

1. they both have a nucleus 2. have the ability to reproduce new cells

What is the problem of describing the unit of life as " a simple cell"?

A simple cell isn't exactly simple. Some plant cells are so complex they can grow into a plant. Most cells help in keeping the body of a plant or animal living with very complex systems. All cells are very organized and complex structures; therefore, the unit of life can't be described as "a simple cell".

A chemical energy compound with two phosphate groups found in living cells. ADP converts to ATP with the addition of a high-energy phosphate grouping.

ADP

dwarf wheat

Borlaug

An American scientist, ___________, used a ______________ which helped the people of Mexico and India with food shortages.

Borlaug, dwarf wheat

sugar beet

mangel

youthful tissue

meristem

body that releases energy from foods

mitochondria

grass

monocot

outward appearance and characteristics of plants

morphology

Four characteristics of dicots are ___________,_____________,___________,and______________.

netted veins, two seed leaves, 4-5 flower parts, vascular rings

The _________________ is a dot or smaller dark body containing RNA in the nucleus.

nucleolus

cell headquarters

nucleus

Cells are divided into two living parts, the ________and the __________.

nucleus and cytoplasm

Cells are divided into two living parts, the __________ and the ___________.

nucleus, cytoplasm

cotton

oil crop

Amino acid quality and protein production programs are being started for crop plants such as ______________and _____________.

soybean and alfalfa

Potato tuber cells have leucoplasts which help ___________.

store starch

Oil-producing plant programs for food as well as fuel oils are being started for crop plants such as _____________ and _____________.

sunflowers and peanuts

stem

support of leaves

Entropy begins to take effect when _________________________________________________.

the cell takes on a different form and function

A new food source from the crossing of wheat and rye is_______.

triticale