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