Which pair of statements best compare the primary functions of the carbohydrate chitin and the protein chitinase?

The chitin in the exoskeleton provides support and protection for insects. The chitinase breaks down chitin for energy to be used by insectivorous bats.

The chitin in the exoskeleton provides insulation for insects. The chitinase stores genetic material for insectivorous bats.

The chitin in the exoskeleton breaks down for energy to be used by insects. The chitinase provides insulation for insectivorous bats.

The chitin in the exoskeleton stores genetic material for insects. The chitinase provides support and protection for insectivorous bats.

Which statements best compare a function of proteins and lipids in a human cell?

Proteins catalyze chemical reactions inside the cell. Lipids allow for the transport of certain molecules into and out of the cell.

Proteins provide energy for cellular processes. Lipids catalyze chemical reactions inside the cell.

Proteins allow for the transport of certain molecules into and out of the cell. Lipids store genetic information for cells.

Proteins store genetic information for cells. Lipids provide energy for cellular processes.

Which statements best compare the function of an ATP molecule to a DNA molecule?

ATP provides energy for chemical reactions in the cell. DNA carries and transmits the genetic information of organisms.

ATP carries and transmits the genetic information of organisms. DNA serves as a biological catalyst that speeds up the rate of chemical reactions.

ATP serves as a biological catalyst that speeds up the rate of chemical reactions. DNA acts as a structural sugar in the cell walls of plants.

ATP acts as a structural sugar in the cell walls of plants. DNA provides energy for chemical reactions in the cell.

A student makes a Venn diagram to compare the functions of carbohydrates and lipids. Which cellular function of carbohydrates and lipids should be placed in the shared section of the Venn diagram?

Structural support of cell walls

Catalyst for chemical reactions

Transmembrane proteins span the width of cell membranes. Four types of transmembrane proteins are shown in a section of cell membrane. Although these proteins have different specific functions, they all -

help the cell interact with its external environment

stop chemical reactions within the cell

synthesize molecules that signal other cells

remove large waste particles from the cytoplasm of the cell

Why are enzymes considered to be catalysts?

Because they can be used over and over again

Because they are specific to shape

Because they denature with temperature

Rennin is an enzyme that catalyzes a reaction that solidifies milk. Rennin was added to three different test tubes with milk. Each test tube was placed in a water bath for ten minutes. The data collected during the experiment are shown. Which statement best explains the result of test tube 3?

The substrate reacted with the enzyme

The function of an enzyme in a biochemical reaction is to -

speed up the rate of the reaction

raise the temperature of the system

increase the amount of substrate added

change the type of product formed

For an enzyme to be able to catalyze a reaction, the active site must -

have a complementary shape to the substrate

increase the activation energy level

cause the enzyme to be destroyed in the reaction

Enzymes are proteins that have a three-dimensional shape that is specific to a particular substrate. Environmental conditions can change the shape of the protein. What is the most likely result if the shape of the enzyme changes?

The enzyme will no longer be able to catalyze the reaction with the substrate.

The substrate will change its shape to match the enzyme.

The products made from the enzyme and the substrate will be changed.

The enzyme will be able to bind to more diverse substrates than before.

Biology STAAR Review: Biomolecules & Enzymes

Interactive Video

•

Biology

•

9th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS1-6, HS-LS1-7, HS-LS2-3

Standards-aligned

Briana Harry

Used 72+ times

FREE Resource

23 questions

Show all answers

SLIDE QUESTION

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SLIDE QUESTION

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SLIDE QUESTION

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SLIDE QUESTION

30 sec • Ungraded

CATEGORIZE QUESTION

3 mins • 1 pt

Move the correct characteristics to the correct biomolecule.

Groups:

(a) Carbohydrates

(b) Lipids

(d) Nucleic Acids

main structural component of the cell wall

storage, transport, regulation, movement and defense

speed up chemical reactions

long term energy

major component of the cell membrane

DNA & RNA

genetic information

short term energy

Label the following biomolecules describe in the diagram.

carbohydrate

nucleic acid

lipid

protein

Actin is a protein that helps the cell maintain its shape and polarity. It also plays a major role in muscle contraction. A table summarizing the cellular functions of different types of proteins is shown. Based on this information, actin is most likely -

an enzyme protein

a structural protein

a messenger protein

a transport protein

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Move the correct characteristics to the correct biomolecule.

Label the following biomolecules describe in the diagram.

Actin is a protein that helps the cell maintain its shape and polarity. It also plays a major role in muscle contraction. A table summarizing the cellular functions of different types of proteins is shown. Based on this information, actin is most likely -

Which pair of statements best compare the primary functions of the carbohydrate chitin and the protein chitinase?

A student athlete wants to choose a drink that will provide quick energy for track practice. Which portion of these label should provide the athlete with information about the amount of quick energy in the drink?Select ONE correct answer.

Which statements best compare a function of proteins and lipids in a human cell?

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A student athlete wants to choose a drink that will provide quick energy for track practice. Which portion of these label should provide the athlete with information about the amount of quick energy in the drink?
Select ONE correct answer.