Which of the following is the correct equation for PHOTOSYNTHESIS?

6CO 2 + 6H 2 O --> 6O 2 + C 6 H 12 O 6

6CO 2 + C 6 H 12 O 6 + 6H 2 O --> O 2

6O 2 + 6H 2 O --> 6CO 2 + C 6 H 12 O 6

C 6 H 12 O 6 + 6O 2 ---> 6H 2 O + 6CO 2

Which is NOT true of MEIOSIS?

Allows for genetic recombination

Which of the following is true of NUCLEIC ACIDS?

Function is transmitting information

Examples include enzymes and hormones

Used for long-term energy storage

When Mendel crossed two green pea plants, some of the offspring produced yellow peas. What does this tell us about the parent plants?

They must have been heterozygous

They must have been homozygous dominant

They must have been homozygous recessive

One was dominant and one was recessive

Why is water moving OUT of the cell?

The cell is surrounded by a hypertonic environment

The cell is surrounded by a hypotonic environment

Water always moves out of cells

When you have 2 different alleles for a trait (such as Aa), that means you....(multiple answers possible)

Show only the dominant form of the trait

Show the recessive form of the trait AND dominant form

Enzymes are capable of increasing the rate of a chemical reaction within a living cell. Enzymes accomplish this through which of the following means?

reducing the number of products

increasing the temperature of the cell

increasing the concentration of reactants

What is true regarding the information in the graph?

Sucrase and Trypsin work at pH 7

Pepsin metabolizes best at pH 3.5

Trypsin works in highly acidic areas

A saltwater fish is accidentally placed in a freshwater aquarium in a few short hours it sadly died. Which explains why this occurred?

The cells of the fish quickly absorbed massive amounts of water and it ended up killing the fish.

The cells of the fish body were dehydrated by the quick loss of water.

The fish hated the new decor in the freshwater tank.

9th Grade Biology Final Exam

Quiz

•

Science

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS3-2, HS-LS1-1, HS-LS3-1

+13

Standards-aligned

Lorianne Roberts

Used 3K+ times

FREE Resource

About this resource

This 9th grade biology final exam comprehensively covers the fundamental concepts that form the foundation of high school biology education. The quiz spans seven major topic areas: genetics and heredity, biomolecules and their functions, cell structure and organization, cellular transport mechanisms, molecular biology processes, cellular respiration and photosynthesis, and enzyme function and regulation. Students must demonstrate mastery of Mendelian genetics by calculating offspring ratios and identifying genotypes, understand the four major classes of biomolecules and their specific roles, distinguish between prokaryotic and eukaryotic cell structures, analyze various transport mechanisms across cell membranes, trace the processes of DNA replication, transcription and translation, compare photosynthesis and cellular respiration equations and functions, and interpret enzyme activity graphs showing optimal temperature and pH conditions. The complexity requires students to apply scientific reasoning, perform genetic crosses, analyze molecular diagrams, and synthesize information across multiple biological systems. Created by Lorianne Roberts, a Science teacher in US who teaches grade 9. This comprehensive final exam serves as an excellent summative assessment tool to evaluate student understanding of core biology principles before advancing to more specialized topics in subsequent years. The quiz format makes it highly versatile for classroom instruction - individual questions can be extracted for daily warm-ups, specific topic clusters work perfectly for unit reviews, and the entire assessment functions as either a practice exam or the actual final evaluation. Teachers can assign portions as homework to reinforce specific concepts or use it for formative assessment to identify areas needing remediation. The content directly aligns with NGSS standards HS-LS1-1 (cell structure and function), HS-LS1-2 (matter and energy in organisms), HS-LS1-6 (cellular respiration and photosynthesis), HS-LS3-1 (inheritance patterns), and HS-LS3-2 (genetic variation), ensuring students meet essential performance expectations for biology literacy at the high school level.

58 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?

none

3/4

1/2

all

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the genotype for a pea plant heterozygous for round seeds (R), and homozygous recessive for green seeds (y)?

Ry

RRyy

RrYy

Rryy

Tags

NGSS.HS-LS3-1

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the functions of lipids?

Quick source of energy

Builds muscles, skin, enzymes

Stores genetic information

Stores energy, insulation, protection

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is structure C?

Substrate

Active site

Enzyme

Products

Tags

NGSS.HS-LS1-7

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

Enzymes increase the energy of the reactants.

Enzymes decrease the energy level of the products.

Enzyme decrease the activation energy of the reaction.

Enzymes reverse the direction of the reaction.

Tags

NGSS.HS-PS1-4

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which is true of prokaryotic and eukaryotic cells?

Prokaryotic cells are larger than eukaryotic cells.

Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.

Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.

Eukaryotic cells are simpler than prokaryotic cells.

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which is true about active transport?

It requires energy

it does not require energy

It moves substances down the concentration gradient

it moves material from high to low concentration

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9th Grade Biology Final Exam

58 questions

W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?