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Mr. Wright's 7th Grade Life Science Mid-Term Exam
BCA 7th grade Life Science Study Guide Mid-Term Exam
108
Science
7th Grade
01/14/2013

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Cards

Term
The female structure of the flower is called the ____________.
Definition
pistil
Term
Flowers that lack showy petals, nectar, and odors are likely pollinated by ____________.
Definition
wind
Term

Which of the following is NOT necessary for pollination

  • anther
  • stigma
  • pollen
  • petals
Definition
petals
Term

The pistil is made up of which of the following?

  • all of these
  • ovary
  • style
  • stigma
Definition
all of these
Term
The four appendages of a typical flower are___________.
Definition
sepals, petals, stamens,  and pistils
Term
Which type of reproduction involves genes grom both parents?
Definition
sexual reproduction
Term
A fruit is a matured
Definition
ovary
Term
As Kristina enjoys blowing the fluffy hairs off dandelion stalks, she is actually _________________.
Definition
scattering dandelion seeds
Term
Must navel oranges and seedless grapes be reproduced asexually because they lack seeds?
Definition
yes
Term
Can some seeds survive being eaten by animals?
Definition
yes
Term
Do birds pollinate some flowers?
Definition
yes
Term
Are flowers the sexual reproductive organs of plants?
Definition
yes
Term
Does sexual reproduction produce offspring that are genetically identical to their parents?
Definition
yes
Term
Be able to label the parts of a flower
Definition

label :

pistil, petal, anther, ovary, stigma

Term
What number of leaflets a leaf must have to be a compound leaf?
Definition
two
Term
Angiosperm literally means "_____"
Definition
covered seed
Term
A region on a stem where a leaf is or was attached is called ___________.
Definition
node
Term
The two main groups of seed plants are 
Definition
gymnosperms and angiosperms
Term
Pine trees, spruces, and cycads are
Definition
gymnosperms
Term
Angiosperms produce
Definition
fruit
Term
Fern leaves are called
Definition
fronds
Term
True mosses are 
Definition
bryophytes and nonvascular
Term

Nonvascular plants do NOT contain:

  • xylem or phloem
  • chloroplasts
  • epidermal cells
  • plastids
Definition
xylem or phloem
Term
Which tissue carries food from the leaves to other parts of the plant?
Definition
phloem
Term
What tissue forms wood?
Definition
xylem
Term
The plant tissue that carries water from the roots to the leaves is __________.
Definition
xylem
Term
An annual growth ring is composed of ______________.
Definition
xylem, springwood,  and summerwood
Term
The weight of a plant is supported by
Definition
cell walls and turgor pressure
Term
What part of a leaf carries water and sugar?
Definition
veins
Term
The weight of a plant is supported by ______________.
Definition
cell walls and turgor pressure
Term
What part of the leaf carries water and sugar?
Definition
veins
Term
The soft, flexible type of stem is ___________.
Definition
herbaceous
Term
The root systems of grasses that consist of many roots that are nearly the same size are ____________.
Definition
fibrous root systems
Term
All living plant cells contain _________.
Definition
plastids
Term

Which of these does not belong with the other trees?

-palmate

-parallel

-petiole

-pinnate

Definition
petiole
Term
When you eat a carrot, you are eating a _________.
Definition
taproot
Term
Compare the functions of xylem tissue and phloem tissue.
Definition
Xylem transports water and helps to support the plant. Phloem transports sugar solution and later becomes part of the protective bark of the plant.
Term
Compare the locations of the oldest xylem tissue and youngest xylem tissue in a tree trunk.
Definition
The oldes xylem is nearest the center of the tree trunk, while the youngest xylem is the outermost xylem but still inside the bark.
Term
Compare the locations of heartwood and sapwood in a tree trunk. Which tissue is involved in conducting water?
Definition
Heartwood is innermost and is nonfunctioning. Sapwood is the outermost of the two and is still conducting water.
Term
What is turgor pressure, and why is it important for plants?
Definition
Turgor pressure is the stiffness of plant parts due to cells' being swollen with water. It is important for plants because it helps to support them.
Term
How does a woody stem differ from a herbaceous stem?
Definition
The woody stem is harder and not as flexible, whereas the herbacious stem is softer and more flexible. The woody stem does not rely on turgor pressure for support.
Term
Since the Creation, God has caused two major changes in the world. What are they?
Definition
God's curse on the ground and the Flood.
Term

Yes or No

 

Most gene mutations are dominant.

Definition
No
Term

Yes or No

 

People who are albinos can live relatively normal lives, but exposure to strong sunlight can be harmful to them.

Definition
Yes
Term

Yes or No

 

Mutations occur as random changes in the genetic makeup of an organism.

Definition
Yes
Term

Yes or No

 

Mutations can happen at any time.

Definition
Yes
Term
_________ twins develop from a single zygote.
Definition
Identical
Term
A complete set of an organism's genes is called its ________.
Definition
genome
Term
A boy and girl born at the same time of the same parents are called _________ twins.
Definition
fraternal
Term
Cloning is a form of ________ reproduction.
Definition
asexual
Term
________ breeding involves the choosing of organisms with desirable traits for breeding.
Definition
Selective
Term
An Old Testament patriarch who practiced selective breeding techniques to increase his wages was ________.
Definition
Jacob
Term
A(n) _______ has the gene but not the disorder.
Definition
carrier
Term
The Human Genome Project is a scientific effort to ______________.
Definition
map all human genes
Term
Genetic engineering _______________________.
Definition
could be used for good or evil
Term
Splitting frog or cattle embryos is a step in ________.
Definition
cloning
Term

A clone is ___________________

_____________________.

Definition
a group of organisms with identical genes that were produced by asexual reproduction
Term
A process of breeding organisms from different varieties to produce an offspring with desirable characteristics of both parents is known as...
Definition
crossbreeding
Term
To develop a new breed of dog, a man selects and mates dogs from different breeds that have the characteristics he wants in the new breed. This breeding is an example of....
Definition
crossbreeding
Term
The mating of an organism with its close relatives or, for some plants, with itself is known as...
Definition
inbreeding
Term
Down syndrome is usually caused by...
Definition
one too many chromosomes
Term
Mutations that occur in gametes or gamete-forming cells are called ________ mutations.
Definition
germ
Term
An organism with two sets of chromosomes is called...
Definition
diploid
Term
What type of mutation does not affect the offspring?
Definition
somatic mutation
Term

Somatic mutations

-occur in body cells

-are not passed on to offspring

-do not affect gametes

-all of the above

Definition
all of the above
Term
A lethal mutation is one that...
Definition
causes the death of the organism
Term
Any change in an organism's genetic material is...
Definition
a mutation
Term

Yes or No

 

Chlorophyll is a pigment that absorbs light energy.

Definition
Yes
Term

Yes or No

 

Enzymes are involved in photosynthesis.

Definition
Yes
Term

Yes or No

 

Photosynthesis occurs in chloroplasts.

Definition
Yes
Term

Yes or No

 

Aerobic processes do not require oxygen.

Definition
No
Term

Yes or No

 

Some cellular respiration occurs in the cytoplasm.

Definition
Yes
Term

Yes or No

 

High turgor pressure causes wilting.

Definition
No
Term

Yes or No

 

Tissues are composed of organs.

Definition
No
Term
Which substance is the primary pigment of photosynthesis?
Definition
chlorophyll
Term
Photosynthesis occurs in....
Definition
chloroplasts
Term

Which of the following is not necessary for photosynthesis to occur?

-carbon dioxide

-light energy

-water

-oxygen

Definition
oxygen
Term
Through which process do most producer organisms change light energy into chemical energy?
Definition
photosynthesis
Term
What might cause soreness in muscles when they are overused?
Definition
lactic acid
Term
Which process has carbon dioxide as a waste product?
Definition
aerobic cellular respiration
Term
An aerobic process is one that requires...
Definition
oxygen
Term
The most common source of energy released by cellular respiration is...
Definition
sugar
Term
Turgor pressure is...
Definition
caused by the collection of water in a plant cell's vacuole.
Term
Division of labor within an organism means that each cell or tissue...
Definition
does not have to perform every function of the organism.
Term
Tissues are often organized into...
Definition
organs.
Term
Cell is to tissue as tissue is to...
Definition
organ
Term
What would happen to a typical plant if it could not make chlorophyll?
Definition
It would be unable to perform photosynthesis since light energy could not be captured by chlorophyll, and it would die.
Term
List one organism found in the classification Platyhelminthes.
Definition
flatworms, planarians, tapeworms, flukes
Term
Dogs and coyotes are different species, but since they can mate and produce offspring that can reproduce, they are the same...
Definition
biblical kind
Term
The first part of a scientific name, the _________, is always capitalized, but the second part usually is not capitalized.
Definition
genus
Term
The system of classification that is used today was proposed by _______ in the 1700s.
Definition
Carolus Linnaeus
Term
To ________ means to arrange things into groups.
Definition
classify
Term
The modern classification system has ______ basic levels.
Definition
seven
Term
A complete, living thing is a(n)...
Definition
organism
Term
Scientists estimate that the human body is made up of about ________ cells.
Definition
60 trillion
Term
Proteins are composed of...
Definition
amino acids
Term

Living things use energy for

-growth

-movement

-response

-all of the above

Definition
all of the above
Term

Living things may obtain energy from

-sunlight

-plants

-animals

-all of the above

Definition
all of the above
Term
A tissue is a...
Definition
group of similar cells working together.
Term
Suppose you discover a new organism. Regardless of what it is, you can say with confidence that it is made of at least one...
Definition
cell
Term

Which of the following is not in the life cycle of a living organism?

-growth

-reproduction

-evolution

-death

Definition
evolution
Term
Today, all new living things...
Definition
come from other living things.
Term
List at least four characteristics that are true of all living organisms.
Definition

-have life spans

-can reproduce

-grow

-are made of cells

-require energy

-respond to their environment

Term
What are the main ideas of the cell theory?
Definition
All cells come from preexisting cells. All living things are made of cells and of the products of cells, and the functions of living things are performed by the cells that make up those living thing.
Term
Give three comparisons of someone who is spiritually alive to someone who is physically alive.
Definition

-Both begin life by being born.

-Both need food.

-Both are capable of growing.

Term
What are the next for levels, from largest to smallest, that come below phylum?
Definition
class, order, family, genus
Term
Why might a Christian object to calling humans mammals?
Definition
God made humans separate and distinct from all other creatures.
Term
Explain the relationship between a scientific name and a biblical kind.
Definition
At one time people believed they were the same thing, but this is not necessarily true today. A species is determined by several traits, including the ability to reproduce. A biblical kind is defined only by the ability to reproduce.
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