What is the function of a cell membrane?

To control what enters and leaves the cell.

To protect and support the cell.

To perform different functions in each cell.

To form a hard outer covering for the cell.

What is the function of the organelles known as lysosomes?

To use enzymes to digest old or worn out cell parts.

To store water and other materials.

To convert food and oxygen into energy.

The cell membrane of this cell is permeable to water, but not to dissolved materials (Ex: salt). What will immediately happen when the cell is placed into this solution?

Water will flow out of the cell.

Dissolved materials will move into the cell.

Dissolved materials will move into the cell AND water will move out.

Which molecule is in equilibrium?

All molecules are in equilibrium.

A person jumps when startled by a loud noise. Which characteristic of life does this represent?

Living things respond to the environment.

The diagram represents two processes that occur in organisms. A characteristic that the two processes have in common is that each process...

moves from low to high concentration

The nervous system does which of the following?

Receives and sends messages to all parts of the body.

Fights disease by recognizing and attacking antigens such as bacteria and viruses by producing antibodies.

Transports needed materials such as oxygen and nutrients to cells and carries away wastes such as carbon dioxide.

Internal and external body movements and flexibility.

Which of the following best describes the difference between the meanings of phenotype and genotype?

A phenotype is the appearance of an organism, whereas a genotype is the genetic makeup of the organism.

A phenotype is the entire genetic makeup of an organism, whereas a genotype is the combination of genes for one specific trait.

A phenotype is the result of the environment on appearance, whereas a genotype is the result of genes on appearance.

A phenotype is the result of heterozygous alleles, whereas a genotype is the result of homozygous alleles.

Which of the following is an example of sexual reproduction?

The egg from a female dog is fertilized by the sperm of a male dog. This produces a fertilized egg.

Mrs. Thomas is planting her garden in the spring. She has several large potatoes. She cuts each potato so that the pieces have an "eye". She plants the "eye" pieces in her garden. Later, she has many large potatoes.

The DNA of a bacterium doubles. The cell divides in half in a process called fission. This process continues every 20 minutes until food for bacteria becomes scarce.

A yeast cell stretches its outer shell until a bump or "bud" appears. The genetic material divides in half and part of this material goes into the bud. The bud pinches in until it breaks off.

Suppose that the farmer wanted to investigate selective breeding to increase the number of eggs that his chickens produce. Which of the following would be the best question for the farmer to ask when doing research?

Which chickens lay the most eggs?

Which chickens produce eggs with the best flavor?

Which chickens are most disease resistant?

Which chickens have been genetically modified?

Which of the following shows the correct organization in the human body, from simple to most complex?

nerve cell -> nerve tissue -> spinal cord organ -> nervous system

nervous system -> nerve cell -> nerve tissue -> spinal cord organ

spinal cord organ -> nerve tissue -> nervous system -> nerve cell

nerve cell -> spinal cord organ -> nerve tissue -> nervous system

Which of the following is NOT an example of selective breeding?

Female cardinals choosing the brightest red male cardinal as their mate.

Allowing only the best milk-producing cows to reproduce.

Crossing disease-resistant plants with plants that produce high food yields.

Mating cats that have long hair with cats that have long tails.

A person touches a sharp tack and quickly moves his hand away. What body systems work together to sense the pain and control the movement?

Muscular System and Nervous System

Nervous System and Respiratory System

Excretory System and Muscular System

Immune System and Cardiovascular System

In multicellular organisms such as humans, which statement about tissues is true?

A tissue is more complex than a cell.

A tissue is more complex than an organ.

A tissue is the most basic unit of organization.

A tissue is made up of organ systems.

Which two body systems function to break down food and remove wastes from the body?

Digestive System and Excretory System

Digestive System and Cardiovascular System

Cardiovascular System and Respiratory System

Excretory System and Cardiovascular System

Semester 1 Review

Authored by Megan Reiter

Science

6th - 8th Grade

NGSS covered

Used 83+ times

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46 questions

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Identify the Growth & Development Characteristic of Life example.

My son shot up five inches in height last year.

Our dog had a litter of puppies yesterday.

Eat a good breakfast and you'll be able to run longer.

When the car pulled into my driveway, my cat ran to hide under the porch.

Tags

NGSS.MS-LS1-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Identify the Reproduces Characteristic of Life example.

My son shot up five inches in height last year.

Our dog had a litter of puppies yesterday.

Eat a good breakfast and you'll be able to run longer.

When the car pulled into my driveway, my cat ran to hide under the porch.

Tags

NGSS.MS-LS3-2

NGSS.MS-LS1-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Identify the Uses Energy Characteristic of Life example.

My son shot up five inches in height last year.

Our dog had a litter of puppies yesterday.

Eat a good breakfast and you'll be able to run longer.

When the car pulled into my driveway, my cat ran to hide under the porch.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-LS1-7

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Identify the Response to Stimuli Characteristic of Life example.

My son shot up five inches in height last year.

Our dog had a litter of puppies yesterday.

Eat a good breakfast and you'll be able to run longer.

When the car pulled into my driveway, my cat ran to hide under the porch.

Tags

NGSS.MS-LS1-8

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which type of cells do NOT have a nucleus?

Plant Cells

Animal Cells

Prokaryotic Cells

Eukaryotic Cells

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which statement below correctly describes the function of the cell organelle?

Cell Wall - allows materials to enter and exit the cell.

Nucleus - surrounds the outside of the cell.

Chloroplasts - capture sunlight energy to make food.

Vacuole - holds DNA / Chromosomes

Tags

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which cell organelle acts as the cell's delivery system?

Nucleus

Endoplasmic Reticulum

Mitochondria

Cytoplasm

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Semester 1 Review

Identify the Growth & Development Characteristic of Life example.

Identify the Reproduces Characteristic of Life example.

Identify the Uses Energy Characteristic of Life example.

Identify the Response to Stimuli Characteristic of Life example.

Which type of cells do NOT have a nucleus?

Which statement below correctly describes the function of the cell organelle?

Which cell organelle acts as the cell's delivery system?

What is the function of a cell membrane?

Which organelles produce proteins in the cell?

Which organelle in plant cells captures the energy in the sunlight?

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