Characteristics of Life
A frog transitioning from an egg, to a tadpole, then to a frog is an example of which characteristic of life?
A. All living things are made of one or more cells
B. All living things sense and respond to changes in their environment
C. All living things reproduce
D. All living things have DNA
E. All living things use energy and get rid of waste
F. All living things grow and develop
F. All living things grow and develop
What tool did scientists use that helped them develop the cell theory?
Microscope
Which of the following is true about all living things?
A. All living thing have cells that contain a nucleus.
B. All living things have cells that all perform the same functions.
C. All living things will be made up of one or more cells.
D. All living things have cells that all contain the same structures.
C. All living things will be made up of one or more cells.
What is DNA? (choose 2)
A. Genetic material in living things that is passed through reproduction to offspring
B. The sum of all chemical processes that occur in an organism
C. Deoxyribonucleic acid
D. The smallest unit that can perform all life processes
A. Genetic material in living things that is passed through reproduction to offspring and C. Deoxyribonucleic acid
Which scientist first discovered the cell?
A. Robert Hooke
B. Theodor Schleiden
C. Robert Remak
D. Rudolf Virchow
A. Robert Hooke
Define "homeostasis"
A. The smallest unit that can perform all life processes
B. Anything that causes a reaction or change in an organism or any part of an organism is called
C. The maintenance of a constant internal state in a changing environment
D. The sum of all chemical processes that occur in an organism
C. The maintenance of a constant internal state in a changing environment
Mold is consuming the cheese in your refrigerator to create energy for itself. Mold gets rid of mycotoxins as a waste product. This is an example of which characteristic of life?
A. All living things are made of one or more cells
B. All living things sense and respond to changes in their environment
C. All living things reproduce
D. All living things have DNA
E. All living things use energy and get rid of waste
F. All living things grow and develop
E. All living things use energy and get rid of waste
All of the following statements are part of the cell theory EXCEPT:
A. All living things are made up of one or more cells.
B. Cells are the basic building blocks of life.
C. All cells are parts of tissues.
D. All cells come from preexisting cells.
C. All cells are parts of tissues.
Fill in the blanks: In ___________ reproduction, two parents produce offspring by combining DNA. In ____________ , one parent copies its own DNA to create an offspring identical to itself.
A. unicellular // multicellular
B. asexual // sexual
C. multicellular // unicellular
D. sexual // asexual
D. sexual // asexual
What is the definition of "stimulus"?
A. The smallest unit that can perform all life processes
B. Anything that causes a reaction or change in an organism or any part of an organism is called
C. The maintenance of a constant internal state in a changing environment
D. The sum of all chemical processes that occur in an organism
B. Anything that causes a reaction or change in an organism or any part of an organism is called
Identify the three tenets of the cell theory.
1. All organisms are made up of one or more cells 2. Cells are the smallest unit of life 3. All cells come from pre-existing cells
What is the difference between sexual and asexual reproduction?
Sexual involves two parents and asexual involves one parent.
Example: You live in Indiana. It is December 29th. It has just snowed. You walk outside to get the mail with a t-shirt and shorts on. You get goose-bumps and start to shiver as you walk to the mailbox. This is an example of what characteristic of life?
A. Responding to changes in the environment to maintain homeostasis
B. Asexual reproduction
C. Getting rid of waste
D. Using energy
A. Responding to changes in the environment to maintain homeostasis
You are looking through a microscope and see one cell divide and become two identical cells. Which tenet of the cell theory did you observe in action?
A. Cell are the basic unit of life
B. All organisms are made of one or more cells
C. All cells come from pre-existing cells
C. All cells come from pre-existing cells
What is the definition of "excreting waste"?
The process of eliminating waste products from the body.