Cell Test

Cell Theory, Cell Parts, Cellular Organization, and Cell Processes

Terms in this set (...)

When it comes to "living things" what would be the "smallest" form of life on the planet?
Cells - more specifically a single cell organism.
Scientists of the past and present all use this tool to view "living" cells.
The microscope - actually a compound light microscope.
In the cell theory we learned that _________ are the basic building blocks of life and all living things are made up of one or more of them.
According to the cell theory cells are the basic unit of _____________ and _______________ for all living things.
structure and function
According to the cell theory all cells come only from other ___________ cells.
What major cell part acts like a "brain" or control center telling the cell what to do, how to do it, and when to do it?
These organelles give all cells power to carry out their life processes by converting food energy into cellular energy.
These organelles store mainly water (also some food and other substances). They are larger in plant cells.
These organelles are found in plant cells. They capture sunlight energy so the plant can make glucose.
What are the three main cell parts (structures) that MOST cells have (Eukaryotes)?
Nucleus, Cell Membrane, Cytoplasm
What are the "tiny" structures that float in the cytoplasm? They help keep the cell alive by carrying out life processes.
This cell part is only in plant cells and it gives the plants structure (so they can grow upright).
Cell Wall
This main cell part controls what comes in and out of a cell.
Cell Membrane
What are the five levels of cellular organization?
Cell, tissue, organ, organ system, organism
Cells that have an oval shaped flattened membranes provide them with maximum surface area while still remaining smooth enough to slide through veins, arteries, and capillaries.
Blood Cell
Cells with long body part that branch out like a tree. This structure allows them to send and receive messages.
Nerve Cell
Cells that are brick in shape (for stacking upright), contain chloroplasts and large vacuoles for carrying out photosynthesis.
Leaf Cell
Cells (single celled organisms) are the smallest life forms on Earth because they are only one cell and can carry out all ______________________________.
life processes
A group of bone cells make up bone _____________.
A human, cat and dog are all examples of ________________.
The brain, liver, stomach and heart are all examples of _____________.
The heart, blood, blood vessels (veins, arteries, capillaries), and lungs all make up a ___________________________.
Organ System
Cells (mitochondria) use food (glucose) and _________________ to create cellular energy for the cell.
When cells carry out a chemical reaction where the energy stored in food (glucose) is combined with oxygen (in the mitochondria) to create cellular energy.
Cell Respiration
When one cell splits and becomes two identical cells of the same type it is called.
Cell Division
Cell division is used to help the replace and repair _________________________________.
damaged or worn out cells.
Cell division helps multi-cellular organisms _________.
Cell division helps single cellular organisms _______________.
reproduce (multiply or add to population size).
The cell membrane is a __________________________ membrane. This means it allows "some" things into the cell, while keeping others out. It also can move certain things out of the cell, while keeping others in.
Selectively Permeable
The moving of any substance from an area of high concentration to an area of low concentration (like water, glucose, etc.) is called __________________.
All cells (single and multicellular organisms) bring glucose into them using diffusion from the food you eat and store it in the mitochondria where it will later be missed with oxygen and turned into cellular energy. True or False
Cell respiration is the _________________ of photosynthesis, when you look at what the cell uses and then what it makes.
In photosynthesis plants make ___________ and O2 by using H2O, energy and CO2.
In cell respiration cells make ____________, H2O and CO2 by using glucose and O2.
Diffusion and osmosis are both what type of "transport" (one that requires no energy)
Passive transport
These organelles assemble protein and help the cell with growth and repair.
Plant cells have what two additional cell parts (structure part and organelle).
Cell Wall and Chloroplasts
Looked at Cork and called them "CELLS"
Looked at microscopic life in pond water
Botanist who studied plants and said all plants are made of cells.
Zoologist who studied animals and said all living things (plants AND animals) are made of cells.
Doctor who concluded that cells must come from pre-existing cells.
From Egg to tadpole to frog shows ___________________________.
Growth and Development
Reproduction is when there are two parents, each giving half of the DNA to the offspring.
sexual reproduction
Reproduction when there is only one parent, making a clone of itself.
asexual reproduction
When the body gets to hot it sweats, trying to cool off its internal temperature. This is an example of the body doing what.
Reacting to a stimuli to maintain homeostasis.
The term given to the state in which a cell can maintain its "desired" requirements (temp., size, food, water, etc.)
When a bacteria makes a copy of itself is is showing which of the 6 characteristics of life?
the ability to reproduce
Cells that do NOT have a Nucleus
Prokaryotic Cells
Cells that DO have a Nucleus
Eukaryotic Cells