Unit 1 Review

Multiple Choice

What is the process of noticing and describing events or processes in a careful, orderly way?

• observation

• controlled experiment

• hypothesis

• inference

Multiple Choice

What is a logical interpretation based on prior knowledge and experience?

• inference

• hypothesis

• observation

• analysis

Multiple Choice

What is a possible explanation for a set of observations? Or a possible answer to a scientific question?

(Hint: this can be tested)

• hypothesis

• observation

• inference

• conclusion

Multiple Choice

What is evidence or information gathered from observations?

(hint: results from an experiment)

• data

• hypothesis

• inference

• experiment

Multiple Choice

What type of data includes numbers?

(Example: the grass grew 2 meters tall)

• quantitative data

• qualitative data

Multiple Choice

What type of data includes only descriptions and no numbers?

(Example: the dog was furry)

• quantitative data

• qualitative data

Multiple Choice

What is an experiment in which only one variable is changed?

• a controlled experiment

• a single experiment

• an incomplete experimemt

Multiple Choice

Which group in an experiment does NOT have the independent variable?

• control group

• experimental group

Multiple Choice

Which group in an experiment does have the independent variable?

• control group

• experimental group

Multiple Choice

What is the factor in a controlled experiment that is deliberately changed?

• dependent varialbe

• independent variable

• control variable

Multiple Choice

What is a variable that changes in response to the independent variable?

(Hint: the variable for measuring)

• independent variable

• dependent variable

• control variable

Multiple Choice

Which variables stay the same between the two groups in an experiment?

• independent variables

• dependent variables

• control variables

Multiple Choice

The goal of science is to provide ________ explanations.

• natural

• supernatural

Multiple Choice

When a scientist 's work undergoes peer review, the reviewer will

• check for mistakes and bias

• automatically accept the work since scientists seem to know a lot

• call the scientist and introduce him or herself to discuss the work

Multiple Choice

What scientific attitude is shown when one is open for to hear new ideas that are different from their own?

• creativity

• skepticism

• curiosity

• open-mindedness

Multiple Choice

This scientific attitude is shown when someone shows interest and pays specific attention to an object or event, ask questions and seeks answers.

• creativity

• curiosity

• open-mindedness

• skepticism

Multiple Choice

Scientist and other people start with questions and observations that may come from:

• Curiosity, skepticism, open-mindedness, and creativity

• Practical problems (flooding issue in a coastal area)

• New technology (such as 3D printers)

• All of the above

Multiple Choice

What scientific attitudes help generate new ideas?

• Curiosity, skepticism, open-mindedness, and creativity help scientists generate new ideas.
  
• Anger, frustration, and curiosity help generate new ideas.
• No one knows what attitudes generate new ideas.
• Only creativity helps scientists generate new ideas.

Multiple Choice

I want to know if low strength bleach, medium strength bleach, or maximum strength bleach will get Heinz ketchup stains out of white T-shirts the best. What is the variable in this experiment?

• the type of stain

• the strength of the bleach

• the color of shirt

• the brand of ketchup

Multiple Choice

If I floss more, then I will have fewer cavities. What is the independent variable?

• Number of cavities

• Amount of flossing

• Type of floss used

• Amount of brushing

Multiple Choice

If I put on a higher factor sunscreen, then I will burn less. What is the dependent variable?

• Severity of sunburn

• Factor of sunscreen

• Time spent in the sun

• Weather conditions

Multiple Choice

Gathering information with the senses:

• observation

• experiment

• hypothesis

• analysis

Multiple Choice

All claims in science should be supported by :

• evidence

• theory

• law

• experiment

Multiple Choice

All living things are made up of...

• cells

• cell tissues

• organ

• organ systems

Multiple Choice

All cells come from___________ cells.

• pregnant

• pre-existing

• paternal

• pin size

Multiple Choice

An organism made of one cell is called

• unicellular organism

• multicellular organism

Multiple Choice

What do you think homeostasis is?

• Keeping your body systems stable

• Staying at home

• Making body systems unstable

Multiple Choice

Which of the following are in the correct order?

• organ system, cell, organ, tissue, organism

• cell, organ, tissue, organ system, organism

• cell, tissue, organelle, organ system, organism

• cell, tissue, organ, organ system, organism

Multiple Choice

All living things are made of cells, All cells come from other cells, the cell is the basic unit of life.

• cell theory

• prokaryotic

• selective permability

• fluid mosaic model

Multiple Choice

What type of cell contains a nucleus and other membrane bound organelles?

• prokaryotes

• eukaryotes

• acetometophen

• ibuprophen

Multiple Choice

What type of cell does not contain a nucleus and other membrane bound organelles?

• prokaryotes

• eukaryotes

• acetmetophon

• ibuprophen

Multiple Choice

Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

Multiple Choice

What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?

• the paper used
• the type of paper airplane
• the distance of each plane's flight
• how hard the plane is thrown

Multiple Choice

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

​Mitosis and Cytokinesis

4 Phases of Mitosis: Prophase, Metaphase, Anaphase, and Telophase (P.M.A.T.)​

Eukaryotic Cell Division

​The Cell Cycle

​

Interphase

​

​

Multiple Choice

Why do cells copy their DNA before mitosis occurs?

• so the two new cells have identical DNA
• so one cell can have two copies of each DNA
• so each new DNA has a chromosome to be part of
• in case some of them die

Multiple Choice

Which is true of the chromosome?

• it does not split during mitosis
• it is two identical pieces of DNA
• it is not connected by the centromere
• it is copied during the G2 phase

Multiple Choice

What does mitosis result in?

• 1 identical daughter cell

• 2 identical daughter cells

• 1 unique daughter cell

• 2 unique daughter cells

Multiple Choice

Among the following, the term that includes the others is ___.

• interphase
• nuclear division
• mitosis
• cell cycle

Multiple Choice

The longest phase of the cell cycle 

• prophase
• interphase
• metaphase
• mitosis

Multiple Choice

Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?

• In order for genetic information to be transferred into daughter cells.
• In order for the cell to be able to increase in size.
• In order for the DNA to be contained in the nucleus.
• In order for the cell to re-order the DNA sequencing in the new cells.

Multiple Choice

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have -

• 16 chromosomes.
• 46 chromosomes.
• 8 chromosomes.
• 4 chromosomes.

Multiple Choice

In mitosis, the resulting cells are genetically (DNA) _____

• identical (same)

• unique (different)

• a blend of both parents

• none of the above

Multiple Choice

Cancer is defined as the

• uncontrolled division of mutated cells

• normal division of cells

• normal DNA replication

• abnormal ATP synthesis

Multiple Choice

A non-cancerous tumor is

• Malignant

• Metastatic

• Benign

• Malign

Multiple Choice

When it occurs at the proper time, programmed cell death (apoptosis)

• will disrupt homeostasis
• may cause defective genetic info to be passed to the next generation of cells
• is an important regulatory process that maintains the health of a multicellular organism
• can contribute to the development of cancer

Multiple Choice

Which statement about the 2 new daughter cells it true?

• The daughter cells have half the number of chromosomes then the parent

• The daughter cells have the exact same genetic material as the parent cell

• The daughter cells are genetically different then the parent cell

• The daughter cells have double the amount of chromosomes then the parent cell

Multiple Choice

A large mass of cells that uncontrollably divide is refered to as a

• cell

• chromosomes

• telophase

• tumor

Multiple Choice

The number of human chromosomes is

• 23

• 46

• 92

• 64

Multiple Choice

What are found within chromosomes?

• Karyotype

• nucleus

• genes

• traits

Multiple Choice

How many pairs of chromosomes does everyone have?

• 46

• 16

• 8

• 23

Multiple Choice

What is a gene?

• A bundle (like a hot dog bun) that the DNA is packed into
• something inside the nucleus
• a piece of DNA
• all of your DNA

Multiple Choice

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

• The more books students read, the lower their English grade.
• The more books students read, the higher their English grade.
• The fewer books students read, the higher their English grade. 
• No relationship exists between the number of books students read and their English grades. 

Multiple Choice

Directions: Select the correct graph.
Mikey had two mice that were about the same age and weight. Mikey fed each of the two mice a different feed for a month. He measured how much the mice weighed every two days until the month was over. Mikey's results showed that although both mice gained weight over the month, mouse 2 gained more weight than mouse 1.Which graph below best shows these results?

• 1
• 2
• 3
• 4

Multiple Choice

What type of graph is this?

• Pie Chart

• Bar Graph

• Line Graph

• Scatter Plot

Multiple Choice

What type of graph is this?

• Pie Chart

• Bar Graph

• Line Graph

• Scatter Plot

Multiple Choice

What is the difference between the shortest and the longest distance of the baseball thrown?

• 10.05 feet
• 8.5 feet
• 8.2 feet
• 8.0 feet

Multiple Choice

What does the y-axis measure?

• Time (minutes)

• Distance in City Blocks

• Length of Stride

• Speed of Walking

Multiple Choice

What does the x-axis measure?

• Time (minutes)

• Distance in City Blocks

• Length of Stride

• Speed of Walking

Multiple Choice

At what two points are the girl and the dog standing still?

• 4 to 20 minutes

• 6 to 18 minutes

• 0 to 6 minutes

• 3 minutes

Multiple Choice

A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH  Which is the best conclusion for this experiment?

• Acid has no effect on the health of this type of plant

• High acidity is helpful to this type of plant.

• Low acidity is harmful to this type of plant.

• High acidity is harmful to this type of plant.

Multiple Choice

Scientists have collected data showing that carbon dioxide and other greenhouse gases in our atmosphere are increasing.

Which statement is best supported by the information in the graph?

• N₂O levels will begin to decrease, stopping ozone layer depletion.

• CO₂ levels will continue to rise, increasing average global temperatures.

• CH₄ levels will increase further, decreasing average global temperatures.

• All greenhouse gases will have a rapid decline, returning to levels prior to the 1500s.

Multiple Choice

Examine the data table.

Select the statement that supports the data and explains the movement of molecules across the cell membranes.

• As the NaCl moved into the potato cells, the potato increased in mass.

• The potatoes in the 0.025 g/mL solution increased in mass as water molecules moved into the potato cells.

• As the NaCl concentration decreased, the mass of the potato increased as water molecules moved out of the potato cells.

• The potatoes in the 0.050 g/mL solution lost the greatest amount of mass as water molecules moved out of the potato cells.

Multiple Choice

A landscaper researched five grass types recommended for use in South Carolina lawns.

The landscaper decides to select a grass type that does not require much fertilizer, does not need constant watering, and grows best in direct sunlight. Which grass type best fits the criteria?

• perennial ryegrass

• Bermuda grass

• buffalo grass

• zoysia grass