Quarter 1 Test

Posljednje ažuriranje almost 2 years ago

Napomena autora:

You may complete just the sections of the test that you wish to try and improve your grade on. You do not need to answer all the questions if you are not trying to raise your grades for certain learning targets.

Instrukcije

1.1a I can explain how water’s physical properties contribute to polarity, adhesion, cohesion, thermal regulation, density and solubility

1.1a

1.1b I can relate the chemical and physical properties of water to life’s metabolic activities

1.1b

1.2a – I can recognize that living cells are composed of relatively few elements including carbon (C), hydrogen (H), nitrogen (N), oxygen (O), phosphorous (P), and sulfur (S).d Section

1.2a

1.2b - I can differentiate between the four major categories of macromolecules (lipids, carbohydrates, proteins, and nucleic acids) through their primary roles and functions.

1.2b

1.3a I can describe the structure of enzymes and explain their in role in acting as catalysts to control the rate of metabolic reactions

1.3a

Quarter 1 Test

Posljednje ažuriranje almost 2 years ago

Napomena autora:

Instrukcije

1.1a I can explain how water’s physical properties contribute to polarity, adhesion, cohesion, thermal regulation, density and solubility

Which best describes how hydrogen bonds are created?

The negative charge of oxygen binds with the positive charge of hydrogen on an adjacent molecule.

The positive charge of oxygen binds with the negative charge of hydrogen on an adjacent molecule.

The negative charge of oxygen binds with the positive charge of hydrogen within the same molecule.

The positive charge of oxygen binds with the negative charge of hydrogen within the same molecule.

1.1a

Which of the following is not an example of Capillary action?

Mercury in a narrow glass tube

A paper towel soaking up spilled chocolate milk

A tree moving water up to its highest leaves

Water climbing higher in a straw than in the glass in which it sits

1.1a

The unequal sharing of electrons between the atoms of a molecule is why water is considered a ___________ molecule.

Unevenly charged

Unequal

Polar

Universal solvent

1.1a

An Arctic blast comes through town. The next day, the plumbers are busy as pipes burst all over the town. Which chemical property can explain why the pipes burst?

Hydrogen bonds between water molecules are more stable due to low temperature and the distance between water molecules is more.

Covalent bonds between water molecules are less stable due to low temperature and the distance between water molecules is more

Covalent bonds between water molecules are more stable due to low temperature and the distance between water molecules is more.

Hydrogen bonds between water molecules are broken due to low temperature and the distance between water molecules is less.

1.1a

The diagram below shows the bonding interactions of individual water molecules with multiple other water molecules. Label the diagram below with the letters shown on the right.

Drugi mogući odgovor:

hydrogen

oxygen

hydrogen bond

1.1a

1.1b I can relate the chemical and physical properties of water to life’s metabolic activities

The first falling leaf of the season has tumbled from the air and landed on the top of the pond. It does not sink but yet float on top of the surface. What is happening on a molecular level that is preventing the leaf from sinking?

Both oxygen and hydrogen are negatively charged, and therefore much stronger.

The surface area of the leaf is quite large and is breaking the hydrogen bonds of the water molecules on the surface.

There is not enough weight to break the hydrogen bonds between water molecules at the surface of water.

Both oxygen and hydrogen are positively charged, and therefore much stronger.

1.1b

Which of the following best describes the significance of water's high specific heat capacity in living organisms?

It enables rapid temperature changes in aquatic ecosystems.

It prevents water from evaporating in hot environments.

It allows organisms to maintain consistent internal temperatures.

It reduces the density of water when it freezes.

1.1b

Which of the following is the most accurate prediction for what would happen if water did not have adhesive properties?

Important nutrients present in water would not be easily available to aquatic organisms.

Large plants would not have a way to deliver water to upper structures like leaves.

The Earth’s climate would be too hot to support life.

Insects could not walk on top of ponds to catch their prey or escape predators.

1.1b

Water is the "universal solvent". Which of the following examples is correctly aligned with this property?

Water is stored in the cells to be used when the organism gets thirsty.

Water determines which proteins are translated from cellular DNA.

Water is found in the plasma membrane and cell wall of all cells.

Water provides a soluble environment for almost all of life’s chemical reactions.

1.1b

In which situation is adhesion more prominent than cohesion?

When water is held together by hydrogen bonds.

When water forms a droplet on a hydrophobic surface.

When water loses density due to decreasing temperatures.

When water climbs the walls of a narrow tube.

1.1b

1.2a – I can recognize that living cells are composed of relatively few elements including carbon (C), hydrogen (H), nitrogen (N), oxygen (O), phosphorous (P), and sulfur (S).d Section

In living cells, carbon serves as the backbone for a wide range of organic molecules. Which of the following is NOT a major role of carbon in living organisms?

Structural support

Energy storage

Serving as universal solvent

Information storage in DNA

1.2a

Roger is comparing a model of a sugar molecule to a model of an amino acid. Which of the following evidence statements would be supported by the two models?

Sugars and amino acids have the same structure.

Sugars and amino acids are made of the same elements except amino acids also contain nitrogen.

Sugars and amino acids are made of exactly the same elements.

Sugars and amino acids are made of the same elements except sugars also contain phosphorus.

1.2a

Scientists have found a new biological sample in the Great Salt Lake. They were testing the sample to determine its chemical composition. The sample got mixed up in the lab, with a ice core sample. Which of the following is most likely the chemical results from the new biological sample?

Carbon 14%, Hydrogen 30%, Oxygen 15%, Nitrogen 7%, Phosphorous 5%

Calcium 12%, Hydrogen 13%, Oxygen 16%, Potassium 21%

Calcium 7%, Hydrogen 23%, Nitrogen 40%, Phosphorous 17%

Carbon 14%, Helium 50%, Oxygen 17%, Nitrogen 6%

1.2a

Butter, oil, wax, & cholesterol are examples of _, which are made up of the elements _____.

Proteins, CHON

Carbohydrates, CHO

Lipids, CHO

Nucleic acids, CHONP

1.2a

A biological macromolecule (DNA or RNA) composed of which elements?

CHO

CHNOPS

CHONP

CHON

1.2a

1.2b - I can differentiate between the four major categories of macromolecules (lipids, carbohydrates, proteins, and nucleic acids) through their primary roles and functions.

Like complex carbohydrates, proteins are biomolecules that serve many functions and can be chemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?

Monomers of polymer subunits

Polymers of smaller subunits

Sequences of simple sugars

Lipids of larger molecules

1.2b

Resistance to antibiotics results from the differences in genetic information of Streptococcus pneumoniae. Which type of molecule is responsible for genetic information in Streptococcus pneumoniae?

Lipids

Proteins

Nucleic acids

Carbohydrates

1.2b

Proteins have a wide range of functions in living organisms. How does the structure of a protein relate to its function, and can a change in protein structure affect its function?

All proteins have the same structure and function, with no variations.

The sequence of amino acids in a protein determines its structure, which in turn dictates its function, and any changes in structure can alter its function.

Protein structure is unrelated to its function, and changes in structure do not impact function.

Protein structure is determined by the environment and is not related to function.

1.2b

In recent research there has been controversy over reduced fat diets. On the one hand, a low fat diet is meant to lead to better physical health, like reducing plaque build-up in your arteries. On the other hand, lipids provide essential building blocks for cellular structures. Which one of these would be directly affected by a reduction of fat in the diet?

Building cell membranes

Building cell walls

Building muscle

Building ribosomal RNA

1.2b

Match the name of the molecule to its function (drag and drop)

Drugi mogući odgovor:

Lipids

Nucleic Acids

Proteins

Carobhydrates

1.2b

1.3a I can describe the structure of enzymes and explain their in role in acting as catalysts to control the rate of metabolic reactions

Meat tenderizer contains an enzyme that interacts with meat. If meat is coated with tenderizer and then placed in a refrigerator for a short time, how would the enzyme be affected?

It would no longer act as an enzyme.

Its activity would slow down.

Its shape would change.

It would be broken down.

1.3a

Catalase is an enzyme that speeds up the decomposition of hydrogen peroxide into water and oxygen. Students conducted two investigations to determine the ideal conditions for the function of catalase. One investigation compared catalase activity at different values of pH. The other investigation compared catalase activity at different temperatures.
According to the data in the graphs, which pH and temperature combination provides the best conditions for catalase to function?

pH 7 and 37°C

pH 5 and 4°C

pH 5 and 25°C

pH 7 and 50°C

1.3a

The graph below shows the effect of temperature on the relative rate of action of enzyme X on a protein. Which change would not affect the relative rate of action of enzyme X?

an increase in temperature from 70°C to 80°C

the removal of the protein when the reaction is at 30°C

a decrease in temperature from 40°C to 10°C

the addition of cold water when the reaction is at 50°C

1.3a

Proteins are essential for a wide range of cellular processes. Describe the role of enzymes, a specific type of protein, in facilitating chemical reactions and explain how enzymes achieve specificity.

Enzymes lower the activation energy of chemical reactions, allowing them to proceed at a faster rate, and specificity is achieved through a unique active site shape and complementary substrate binding.

Enzymes increase the rate of chemical reactions by consuming energy, and specificity is determined by the overall protein structure.

Enzymes provide structural support to cells, and their specificity is based on the shape of the active site.

Enzymes have no role in chemical reactions, and specificity is controlled by the pH of the solution.

1.3a

A scientist is using an enzyme to get a chemical reaction to occur within a cell sample and records the data below about the rate of reaction in different pH environments. What does the data most likely demonstrate about the enzyme?

pH affects enzyme function

enzymes lower activation energy

Enzymes are reusable

Enzyme specificity

1.3a

Quarter 1 Test

Quarter 1 Test

Which best describes how hydrogen bonds are created?

Which of the following is not an example of Capillary action?

The unequal sharing of electrons between the atoms of a molecule is why water is considered a ___________ molecule.

An Arctic blast comes through town. The next day, the plumbers are busy as pipes burst all over the town. Which chemical property can explain why the pipes burst?

The first falling leaf of the season has tumbled from the air and landed on the top of the pond. It does not sink but yet float on top of the surface. What is happening on a molecular level that is preventing the leaf from sinking?

Which of the following best describes the significance of water's high specific heat capacity in living organisms?

Which of the following is the most accurate prediction for what would happen if water did not have adhesive properties?

Water is the "universal solvent". Which of the following examples is correctly aligned with this property?

In which situation is adhesion more prominent than cohesion?

In living cells, carbon serves as the backbone for a wide range of organic molecules. Which of the following is NOT a major role of carbon in living organisms?

Roger is comparing a model of a sugar molecule to a model of an amino acid. Which of the following evidence statements would be supported by the two models?

Scientists have found a new biological sample in the Great Salt Lake. They were testing the sample to determine its chemical composition. The sample got mixed up in the lab, with a ice core sample. Which of the following is most likely the chemical results from the new biological sample?

Butter, oil, wax, & cholesterol are examples of _____________, which are made up of the elements _________________.

A biological macromolecule (DNA or RNA) composed of which elements?

Like complex carbohydrates, proteins are biomolecules that serve many functions and can be chemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?

Resistance to antibiotics results from the differences in genetic information of Streptococcus pneumoniae. Which type of molecule is responsible for genetic information in Streptococcus pneumoniae?

Proteins have a wide range of functions in living organisms. How does the structure of a protein relate to its function, and can a change in protein structure affect its function?

Meat tenderizer contains an enzyme that interacts with meat. If meat is coated with tenderizer and then placed in a refrigerator for a short time, how would the enzyme be affected?

The graph below shows the effect of temperature on the relative rate of action of enzyme X on a protein. Which change would not affect the relative rate of action of enzyme X?

Proteins are essential for a wide range of cellular processes. Describe the role of enzymes, a specific type of protein, in facilitating chemical reactions and explain how enzymes achieve specificity.

A scientist is using an enzyme to get a chemical reaction to occur within a cell sample and records the data below about the rate of reaction in different pH environments. What does the data most likely demonstrate about the enzyme?

Which best describes how hydrogen bonds are created?

Which of the following is not an example of Capillary action?

The unequal sharing of electrons between the atoms of a molecule is why water is considered a ___________ molecule.

An Arctic blast comes through town. The next day, the plumbers are busy as pipes burst all over the town. Which chemical property can explain why the pipes burst?

The first falling leaf of the season has tumbled from the air and landed on the top of the pond. It does not sink but yet float on top of the surface. What is happening on a molecular level that is preventing the leaf from sinking?

Which of the following best describes the significance of water's high specific heat capacity in living organisms?

Which of the following is the most accurate prediction for what would happen if water did not have adhesive properties?

Water is the "universal solvent". Which of the following examples is correctly aligned with this property?

In which situation is adhesion more prominent than cohesion?

In living cells, carbon serves as the backbone for a wide range of organic molecules. Which of the following is NOT a major role of carbon in living organisms?

Roger is comparing a model of a sugar molecule to a model of an amino acid. Which of the following evidence statements would be supported by the two models?

Scientists have found a new biological sample in the Great Salt Lake. They were testing the sample to determine its chemical composition. The sample got mixed up in the lab, with a ice core sample. Which of the following is most likely the chemical results from the new biological sample?

Butter, oil, wax, & cholesterol are examples of _____________, which are made up of the elements _________________.

A biological macromolecule (DNA or RNA) composed of which elements?

Like complex carbohydrates, proteins are biomolecules that serve many functions and can be chemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?

Resistance to antibiotics results from the differences in genetic information of Streptococcus pneumoniae. Which type of molecule is responsible for genetic information in Streptococcus pneumoniae?

Proteins have a wide range of functions in living organisms. How does the structure of a protein relate to its function, and can a change in protein structure affect its function?

Meat tenderizer contains an enzyme that interacts with meat. If meat is coated with tenderizer and then placed in a refrigerator for a short time, how would the enzyme be affected?

The graph below shows the effect of temperature on the relative rate of action of enzyme X on a protein. Which change would not affect the relative rate of action of enzyme X?

Proteins are essential for a wide range of cellular processes. Describe the role of enzymes, a specific type of protein, in facilitating chemical reactions and explain how enzymes achieve specificity.

A scientist is using an enzyme to get a chemical reaction to occur within a cell sample and records the data below about the rate of reaction in different pH environments. What does the data most likely demonstrate about the enzyme?

Butter, oil, wax, & cholesterol are examples of _, which are made up of the elements _____.

Butter, oil, wax, & cholesterol are examples of _, which are made up of the elements _____.