Which is true about active transport?

It moves substances down the concentration gradient

it moves material from high to low concentration

If you looked at red blood cells under a microscope and saw the blood cells exploded, what would you say happened?

The cells were placed in a hypotonic solution.

An animal cell placed in a sugar solution is shown in the diagram. Which statement best describes how osmosis will affect this animal cell?

Water will move out of the cell and the cell will shrink

Water will move into the cell and the cell will expand

Sugar will move out of the cell and the cell will expand

Sugar will move into the cell and the cell will expand

What is Cell differentiation?

The process of cells becoming specialized for specific functions

The process of cells becoming identical

The process of cells becoming mutated

Which of the following best describes Specialized Cells?

They have specific structures and functions

They are identical to all other cells in the organism

They are only found in cancerous cells

Cells differentiate to perform different functions because

different genes are turned on or off inside that cell

all genes are turned on inside that cell

all genes are turned off inside that cell

different genes are turned on inside that cell

Cells differentiate to perform different functions because

different genes are turned on or off inside that cell

all genes are turned on inside that cell

all genes are turned off inside that cell

different genes are turned on inside that cell

the process of programmed cell death

the process of programmed cell growth

the process of programmed cell birth

the process of programmed cell regulation

What is the function of cyclins?

Cyclins are proteins that regulate when and how often a cell divides.

Cyclins are carbohydrates that regulate DNA replication during the mitosis phase of the cell cycle.

Cyclins are glycoproteins that repair DNA at the beginning of the cell cycle.

Scientists determined the total mass of DNA from a sample of animal cells. The masses of equal numbers of cells were taken during three different stages of the cell cycle. Stage I contains cells massed during G1 of the cell cycle. Which statement best describes the cells during Stage II?

The cells have replicated their DNA, but have not completed mitosis and cytokinesis.

The cells have completed mitosis and cytokinesis without replicating their DNA.

The cells have replicated their DNA and completed mitosis and cytokinesis.

The cells have temporarily exited the cell cycle without replicating their DNA.

Normal cells that have a contact inhibition feedback mechanism that prevents the cells from replicating when other cells are touched. A diagram of cells with contact inhibition and cells without contact inhibition is shown. Which statement best describes what will happen to cells in an organism that lack contact inhibition?

The cells will continue to grow, causing a tumor in the body.

The cells will replicate normally, replacing body cells that die.

The cells will replicate until the food supply for each cell is used, causing each cell to die.

The cells will stop replicating once one layer is produced, as other body cells will crowd them out.

Why do cells go through mitosis?

to reproduce, grow, and repair/replace cells

6 weeks Review #2

Authored by Reynaldo Castaneda

Biology, Science

9th - 12th Grade

NGSS covered

Used 6+ times

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50 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What are the four biological molecules?

proteins, carbohydrates, lipids, nucleic acids

A, T, C, G

water, air, earth, and fire

Joe, Nick, and Kevin Jonas

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which biomolecule is responsible for insulation and energy storage?

Protein

Nucleic Acid

Lipid

Carbohydrate

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which biomolecule is your main source of quick energy?

Nucleic Acid

Protein

Lipid

Carbohydrate

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which biomolecule contain your genetics?

Carbohydrate

Lipid

Nucleic Acid

Protein

Which biomolecule is found in fats, oils, and waxes and is a source of long-term energy?

Proteins

Nucleic Acid

Lipids

Carbohydrate

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the function of a nucleic acid?

Stores genetic information

Stores energy

Quick source of energy

Builds structures

What is the function of lipids?

provides quick energy

stores energy

helps with growth and repair of tissues

stores genetic information

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6 weeks Review #2

What are the four biological molecules?

Which biomolecule is responsible for insulation and energy storage?

Which biomolecule is your main source of quick energy?

Which biomolecule contain your genetics?

Which biomolecule is found in fats, oils, and waxes and is a source of long-term energy?

What is the function of a nucleic acid?

What is the function of lipids?

What is the function of nucleic acid?

Which of the following does not have a nucleus?

Animals are an example of __________.

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