The cellular structure that transports materials within a cell.
100
What is a nuclear membrane?
The cellular structure that encloses and protects the nucleus.
100
What is a ribosome?
an organelle that contains the enzymes that help produce proteins.
100
What is the purpose of the endocrine system?
The purpose of it is to expel wastes.
200
What is a cell membrane?
The structure around all cells that regulates movement of substances into and out of cells.
200
What is homeostasis?
The ability to maintain a constant internal environment.
200
What is the nucleus?
The control center of a cell that contains the chromosomes.
200
What is tissue?
A collection of plant and animal cells that does a specific job.
200
Whats an example of homeostasis?
A bird breathes faster due to more physical activity.
300
What is a cell wall?
The outer structure around plant cells.
300
What is a hormone?
A substance produced by an organism that stimulates a response within its cells.
300
What is an organ?
A group of tissue that work together to do a job in the body.
300
What is a vacuole?
A cavity inside a cell's cytoplasm that contains pigment and often stores food and water.
300
Amanda is investigating how oxygen moves through the body. What two organ systems will she find working together to move oxygen to all the cells in the body?
Respiratory and circulatory systems.
400
What is chloroplast?
A body inside a plant cell which converts sunlight into food energy.
400
What is a metamorphosis?
Describes the change of forms that some animals must undergo to reach maturity.
400
What an organ system?
A group of organs that work together to perform a set of functions.
400
Why don't animal cells need chloroplasts?
Animals don't need chloroplasts because they dont go through photosynthesis.
400
Juan was looking at plant and animal cells under the microscope. Which cell component would Juan see only in a plant cells?
Cell wall.
500
What is cytoplasm?
The clear thick fluid that holds the internal components of a cell.
500
What is mitochondria?
An organelle that releases energy to the rest of a cell.
500
What is an organelle?
A specialized structure within a cell, such as a mitochondria or ribosome.
500
Why is it important for plants to have cell walls?
Because plants don't have protective bones.
500
The human body has levels of organization that scientists order from least complex to most complex. What is the most is the most complex?