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Peter's Cell Test Review
Use these cards to study for peter's 7th grade cell test
45
Biology
7th Grade
04/04/2011

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Cards

Term
Given a drawing of a plant cell, identify these 7 organelles: cell membrane, cell wall, chloroplast, cytoplasm, mitochondria, nucleus, vacuole.
Definition
Term
Given a drawing of a microscope, identify the following parts: eyepiece, arm, course focus, fine focus, base, lamp (light source), diaphram, stage, objective lenses.
Definition
Term
Given a microscopic image of a Elodea cell, identify: a cell, the cell wall, the chloroplast.
Definition
Term
Given a microscopic image of a cheek cell, identify: a cell, the cell membrane, the nucleus, the cytoplasm.
Definition
Term
Make a slide of an elodea leaf and focus the microscope at high power
Definition
Term
List three behaviors of the living.
Definition
1. Respond to environment.
2. Grow
3. Reproduce
Term
List three characteristics of bacteria.
Definition
1. The cell has cytoplasm and a cell membrane.
2. The cell doesn't have a nucleus or other interal structures.
3. The cells always live alone as single celled organisms.
Term
List 7 organelles
Definition
1. cell membrane
2. cell wall
3. chloroplast
4. cytoplasm
5. mitochondria
6. nucleus
7.vacuole
Term
What are three organelles found in plant cells, but not animal cells?
Definition
1. cell wall
2. chloroplast
3. vacuole
Term
List the 4 needs of the living.
Definition
1. exchanges gases
2. uses water
3. uses energy
4. eliminates waste products
Term
Consider our microscopes, what is the approximate field of view at low power?
Definition
4.5 mm
Term
If the eyepiece has a magnification of 10 and the objective lens has a magnification of 4, what is the image's total magnification?
Definition
40 (you multiply the two lenes' magnification together to get the total)
Term
A cloud is not alive, but which of the 7 criteria for life is it missing?
Definition
A cloud doesn't exchange gases, that is a cloud doesn't convert one type of gas to a different type of gas.
Term
A fire is not alive, but which of the 7 criteria for life is it missing.
Definition
A fire doesn't need water.
Term
what is an organelle?
Definition
A structure inside a eukaryotic cell.
Term
What was the first type of life on earth and when did it appear?
Definition
Bacteria was the first type of life on earth and it appeared 3.5 billion years ago.
Term
What organelle keeps some things out of the cell, but lets others into the cell?
Definition
Cell membrane
Term
What is the function of the nucleus?
Definition
Controls the production of proteins and contains genetic materials.
Term
Name one organ system and two organs that belong to that system.
Definition
Digestive system: stomach and mouth
Term
True or False. The controversy surrounding stem cells centers around how doctors will use them to treat patients.
Definition
False
Term
What is the function of the vacuole?
Definition
Found in plants and used to store water and food.
Term
What is the function of the chloroplast?
Definition
Found in plants, it holds the chlorophyll.
Term
What is the function of the cell wall?
Definition
Found in plants, the cell wall is a rigid structure that surrounds and protects a plant cell.
Term
Define dormant and give an example.
Definition
Life in suspended animation. Example seeds, deciduous trees in winter.
Term
When preparing a slide of a human cheek cell, what was the purpose of using methylene blue?
Definition
Methylene blue is a stain that makes the cytoplasm, cell membrane and nucleus easier to see.
Term
What is the major difference between prokaryotic and eukaryotic cells.
Definition
Only eukaryotic cells have a nucleus.
Term
What is the function of the mitochonria?
Definition
Processes sugar and provides energy for the cell.
Term
Who was the first person to see a cell?
Definition
Robert Hooke - the inventor of the microscope.
Term
Define non-living and give an example
Definition
Something that was never living. Example a rock, or water, or air.
Term
Define dead
Definition
Something that was once alive, but is not longer alive (lacks at least one of the 7 criteria necessary to be living.)
Term
What is the function of the cell membrane?
Definition
The "skin" of the cell, it separates the cell from the outside environment.
Term
What is the definition of field of view?
Definition
The diameter of the circle of light you see when looking through a microscope.
Term
What is the definition of focal plane?
Definition
The distance at which the microscope's lens will focus.
Term
How old is the earth and was life present when the earth formed?
Definition
The earth is 4.5 billion years old, and no life was present when it first formed.
Term
What is the function of the cytoplasm?
Definition
The liquid inside the cell, it holds the other organelles.
Term
Arrange the following words from least organized to most organized: organ system, multicellular organism, atom, cell, tissue, organ, molecule, organelle.
Definition
atom, molecule, organelle, cell, tissue, organ, organ system, multicellular organism!
Term
What type of blood vessel provides each cell in the human body with food, oxygen and water while removing carbon dioxide and other waste products?
Definition
capillary
Term
What are all living things made of?
Definition
cells
Term
Define living
Definition
has all the needs and behaviors necessary for life.
Term
Which organelle is considered the "powerhouse" of the cell?
Definition
mitochondria
Term
Which organelle holds genetic material?
Definition
nucleus
Term
If you move the slide one way, the image in the eyepiece moves the ________ way.
Definition
opposite
Term
Complete a venn diagram comparing a human to a paramesium
Definition
similarities: living, RUGRUGE, animal, eukaryontic cells, nucleus, mitochondria, cytoplasm, cell membrane.
Differences: Paramecium reproduce by splitting, each cell is free living organism, single celled organism.
Differences Human: multicellular, individual cells cannot be considered alive unless they are attached to all the body systems, reproduce sexually.
Term
A color picture in a magazine is really made up of . . .
Definition
thousands of tiny yellow, magenta and cyan dots.
Term
True or False. Stem cells change to become more specialized cells like skin cells or bone cells.
Definition
true
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