Biochemistry Pre-test

Presentation

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Biology

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9th - 12th Grade

•

Medium

•

NGSS

HS-LS1-6, HS-LS1-1, HS-PS1-4

Standards-aligned

David Jones

Used 6+ times

FREE Resource

0 Slides • 50 Questions

Multiple Choice

Which subatomic particle is not in the nucleus?

proton

neutron

electron

Multiple Choice

Which is not a particle in an atom?

electron

megatron

proton

neutron

Multiple Choice

The amino acid tryptophan has a chemical formula of C₁₁H₁₂N₂O₂. Which element isn't present in this molecule?

hydrogen

calcium

oxygen

nitrogen

Multiple Choice

Which is a Carbohydrate's monomer?

Sugar

Amino acids

Monosacharide

Nucleotide

Multiple Choice

Which two bio molecules have only Carbon, Hydrogen, and Oxygen?

Carbs/Nucleic Acids

Lipids/Carbs

Proteins/Nucleic Acids

Carbs/Proteins

Multiple Choice

A type of biological molecule that includes fats, oils, hormones, waxes, and components of cellular membranes ...

lipids

proteins

carbohydrates

nucleic acids

Multiple Choice

Glucose is an example of a

Carbohydrate

Lipid

Protein

Nucleic Acid

Multiple Choice

What is the purpose of an enzyme?

give permission for the reaction

raise activation energy

speed up reactions

control how many reactions occur

Multiple Choice

What happens when enzymes are heated to a high temperature?

The enzymes die.

The shapes of the enzyme are altered or denatured

The enzymes' amino acid sequence changes.

The enzymes remain the same

Multiple Choice

Based on the graph, what temperature does this enzyme work best?

15 C

40 C

30 C

47 C

Multiple Choice

Most enzymes are composed of .....

Lipids

Carbohydrates

Proteins

Nucleic Acids

Multiple Choice

Where do substrates bind on an enzyme?

voltage-gated channels

surface receptor

calcium channels

active site

Multiple Choice

What type of bond is formed when atoms share electrons?

Covalent bond

Ionic bond

Hydrogen bond

van der Waals force

Multiple Choice

Imagine you're a scientist working on a new experiment. What would you call the energy needed to kickstart your chemical reaction?

Activation energy

Enzyme

Catalyst

Substrate

Multiple Choice

What is the starting material in a chemical reaction called?

Reactant

Product

Activation energy

Catalyst

Multiple Choice

Imagine you are in a chemistry lab. You observe a reaction where electrons are transferred from one atom to another. What type of bond is being formed in this scenario?

Ionic bond

Covalent bond

Hydrogen bond

van der Waals force

Multiple Choice

Imagine you are a scientist studying substances. How would you define an element in your research?

A substance that cannot be broken down into simpler substances by chemical means

A substance composed of two or more different elements chemically combined

Atoms of the same element that have different numbers of neutrons

Substances formed as a result of a chemical reaction

Multiple Choice

What are substances that release hydrogen ions (H+) in water called?

Acids

Bases

Buffers

Multiple Choice

You are making a cup of tea. You add sugar and stir until it completely dissolves. What would you call this type of homogeneous mixture where sugar (one substance) is dissolved in tea (another substance)?

Solution

Mixture

Solute

Solvent

Multiple Choice

Which statement best describes the graph shown?

Reaction B occurs at a slower rate.

The original reaction is catalyzed.

Less energy is needed to start reaction B.

More energy is released by the original reaction.

Multiple Choice

Acetylcholine is an important chemical signal in the nervous system. It is broken down into other chemicals by cholinesterase.Cholinesterase is which of the following?

enzyme

hormone

lipid

organelle

Multiple Choice

The specific reactants that an enzyme acts on are called

catalysts

substrates

proteins

amino acids

Multiple Choice

Which phrase best describes an exothermic chemical reaction?

releases more energy than it absorbs

forms products with higher bond energy than reactants

does not absorb any energy

is in a state of equilibrium

Multiple Choice

DNA and RNA are two types of

proteins

lipids

carbohydrates

nucleic acids

Multiple Choice

An altered form of the protein collagen causes a condition where bones break easily. Which of the following are components of collagen?

fatty acids

amino acids

nucleic acids

monosaccharides

Multiple Choice

Fats, oils, and cholesterol are all types of

fatty acids

lipids

hormones

cell membranes

Multiple Choice

Which category of carbon-based molecules includes sugars and starches?

proteins

carbohydrates

unsaturated fatty acids

phospholipids

Multiple Choice

Carbon is unique due to the carbon atom’s

hydrogen bonding strength

ionic compounds

six outer unpaired electrons

bonding properties

Multiple Choice

In the lock-and-key model of enzyme function shown in the figure, what is happening in step 2?

The active sites are restructuring the enzyme

The substrates are beginning to bind to the enzyme

The catalyzed reaction is releasing a product.

The enzyme is causing new bonds to form between the substrates.

Multiple Choice

Which aspect of a chemical reaction is affected by enzymes?

rate

direction

equilibrium

Multiple Choice

The activation energy needed for a chemical reaction is decreased by a

reactant

product

catalyst

substrate

Multiple Choice

Chemical reactions that absorb more energy than they release are called

exothermic

catalyzed

endothermic

activated

Multiple Choice

Identify the products in this reaction: 6H₂O + 6CO₂ → C₆H₁₂O₆+ 6O₂.

6H₂O and 6CO₂

6CO₂ and C₆H₁₂O₆

6H₂O, C₆H₁₂O₆, and 6O₂

C₆H₁₂O₆ and 6O₂

Multiple Choice

Substances are changed into different substances when bonds break and form during

ion formation

chemical equilibrium.

chemical reactions

hydrogen bonding

Multiple Choice

What elements are common to all 4 biomolecules?

Carbon, hydrogen, nitrogen

Carbon, Nitrogen, Phosphorus

Carbon, Hydrogen, Oxygen

Carbon, Hydrogen, Phosphorus

Multiple Choice

Which biomolecule is this a picture of?

Protein

Nucleic Acid

Lipid

Carbohydrate

Multiple Choice

Which biomolecule is this a picture of?

Protein

Nucleic Acid

Lipid

Carbohydrate

Multiple Choice

Which biomolecule is this a picture of?

Protein

Nucleic Acid

Lipid

Carbohydrate

Multiple Choice

Carbon, Hydrogen, Oxygen and Nitrogen are elements in what biomolecule?

Carbohydrate

Lipid

Protein

Nucleic acid

Multiple Choice

What is the monomer of a Lipid?

Amino Acid

Nucleotide

Glycerol and Fatty Acids

Monosaccharide

Multiple Choice

What is the monomer of a protein?

Amino acid

Nucleotide

Monosaccharide

Fatty acid

Multiple Choice

What is the monomer of a nucleic acid?

Nucleotide

Amino Acid

Polysaccharide

Lipid

Multiple Choice

What is the monomer of a carbohydrate?

Amino Acid

Nucleotide

Monosaccharide

Fatty Acid

Multiple Choice

What elements are in a nucleic acid?

CHO

CHOP

CHONP

CHON

Multiple Choice

What elements are in a protein?

CHO

CHOP

CHON

CHONP

Multiple Choice

What elements are in a Lipid

Carbon, Hydrogen, Oxygen, Nitrogen

Carbon, Hydrogen, Oxygen

Carbon, Hydrogen, Oxygen, Phosphorus

Carbon, Hydrogen, Oxygen, Sulfur

Multiple Choice

What elements are in a carbohydrate

CHO

CHON

CHOP

CHONP

Multiple Choice

Bases release which ions ?

hydroxide ions

no ions

hydrogen ions

hydroxide and hydrogen ions

Multiple Choice

Attractions between water molecules are called

Covalent bonds

Ionic bonds

Polar bonds

Hydrogen bonds

Multiple Choice

The process of removing water in order to form a bond between monomers is called....

Dehydration Synthesis

Hydrolysis

Which subatomic particle is not in the nucleus?

proton

neutron

electron

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