Your science teacher has asked the class to make a cell city model. Which building or business in the city could represent the mitochondria, and why?

Power company = produces energy

How do enzymes speed up chemical reactions? Enzymes

Lower the activation energy of chemical reactions

Raise the temperature of the cell, speeding chemical reactions

Store ATP, allowing more energy to be used in chemical reactions

Act as miniature 'transfer trucks', gathering materials for chemical reactions, and placing them together

The human stomach secretes an enzyme known as pepsin. This enzyme breaks down proteins into smaller chemical molecules called peptides. If pepsin was mixed in a laboratory with sugar molecules like glucose, what is the most likely result?

Pepsin will probably NOT react with the sugar glucose since it is an enzyme that breaks down proteins.

Pepsin will break down glucose molecules into simpler substances.

Pepsin will react with glucose only if the necessary RNA molecules are present.

Pepsin will probably NOT react with glucose since the activity of enzymes is limited to the human body.

Enzymes work by fitting onto the substrate molecule like a lock-and-key action. Which statement is true, with regard to the enzyme and the substrate?

The enzyme weakens chemical bonds in the substrate and catalyzes a change into the product. The enzyme itself remains unchanged.

The enzyme weakens chemical bonds in the substrate and catalyzes a change into the product. The enzyme is also consumed in the reaction.

The substrate reacts with the enzyme in the active site to produce a product. The enzyme, though changed, does not become a part of the product.

The substrate reacts with the enzyme in the active site to produce a product. Both the enzyme and the substrate combine and change into a product.

What is the function of a cell’s selectively permeable plasma membrane?

It regulates what materials enter and leave the cell.

It helps the cell to manufacture proteins.

It regulates the amount of ATP the cell produces.

It packages and stores most of the material in a cell.

While cleaning a saltwater aquarium, students placed a family of fiddler crabs from the saltwater aquarium into a container of distilled water. What effect will this have on the crabs?

The crabs will die if left in the freshwater, their cells will burst.

The crabs will not be affected at all.

The crabs will excrete excess salts left in their systems.

The crabs will die if left in the freshwater, their cells will shrink.

During diffusion, molecules move

From higher concentration to lower concentration

To points equidistant from the point of origin

From lower concentration to higher concentration

Which statement below best summarizes the role of the DNA molecule in cells?

Provides the instructions for making proteins

Regulates the chemical processes that provide the cell with energy

Which statement is true regarding DNA? DNA

Contains uracil in place of thymine

Contains a single strand of nucleotides

Travels to ribosomes for protein synthesis

Transported to other parts of the cell by the endoplasmic reticulum from ribosomes.

Built in the nucleus by DNA and transported to the ribosomes.

Converted from nucleic acids to amino acids in the nucleolus.

Produced in the lysosomes and transported out of the cell by vacuoles.

The carbohydrates contain three common elements. They are

Carbon dioxide, hydrogen, and phosphorus

The two main processes by which plant cells absorb, release, and use energy are

Aerobic and anaerobic respiration

Cells Remediation (SB1)

Authored by Nikki Worrell

Biology

9th - 12th Grade

NGSS covered

Used 4+ times

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33 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The site of photosynthesis in a plant cell is the

Ribosome

Chloroplast

Mitochondria

Endoplasmic reticulum

Tags

NGSS.HS-LS2-5

NGSS.HS-LS1-5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is a major difference between prokaryotes and eukaryotes?

Prokaryotes have no nucleus

All prokaryotes cause disease

Eukaryotes contain more mitochondria

Nucleic acids are founds only in eukaryotes

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

______ produce proteins by following coded instructions that come from the nucleus of the cell.

Ribosomes

Endoplasmic reticulum

Golgi apparatus

Cytoskeleton

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the function of the cell membrane?

To give shape to the cell

To increase the number of cells

To control what enters and leaves the cell

To produce macromolecules within the cell

Tags

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which plant cell organelle uses light energy to produce sugar?

Chloroplast

Mitochondria

Nucleus

Ribosome

Tags

NGSS.HS-LS2-5

NGSS.HS-LS1-5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which feature do prokaryotic and eukaryotic cells share?

Nucleolus

Cytoplasm

Nuclear membrane

Membrane-bound organelles

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which organelle is the powerhouse of the cell, the site of cellular respiration?

Nucleus

Endoplasmic reticulum

Golgi bodies

Mitochondria

Tags

NGSS.HS-LS1-7

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Cells Remediation (SB1)

The site of photosynthesis in a plant cell is the

What is a major difference between prokaryotes and eukaryotes?

______ produce proteins by following coded instructions that come from the nucleus of the cell.

What is the function of the cell membrane?

Which plant cell organelle uses light energy to produce sugar?

Which feature do prokaryotic and eukaryotic cells share?

Which organelle is the powerhouse of the cell, the site of cellular respiration?

Which organelle modifies cell products, packages them for distribution, and then may turn into vesicles and bubble off the surface of the cell?

Your science teacher has asked the class to make a cell city model. Which building or business in the city could represent the mitochondria, and why?

Without ribosomes, a cell would not produce

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