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SLO Biology Test
Question | Answer |
---|---|
Unicellular | one cell |
Multicellular | more than one cell |
Mitosis | reproduction for eukaryotic cells where nucleus dissolves and reforms and chromosomes are copied |
Daughter cells | the two new cells that are created during reproduction, exact copies |
How do plants reproduce? | both sexually and asexually |
How have plants adapted to reproduce better and what is the benefit of each? | sexually insures new chromosomes while asexually is an exact copy. |
What are typical body plans for plants? | radial |
How do animals typically reproduce? | sexually |
Anterior | front side (head side) |
distal | away from body on arm/leg |
posterior | towards backside (bottom side) |
caudal | tail |
dorsal | top (back) |
proximal | towards body on arm/leg |
cranial | head |
lateral | side |
ventral | underneath (stomach) |
Radial | body parts organized around a central point |
Bilateral | mirror halves |
Asymmetry | no body plan |
Organization of Life from smallest to largest | cells->tissue->organs->organ systems->organisms |
Cells | basic unit of life. |
Tissue | group of similar cells working together |
Organs | group of different tissues working together to perform a specific job |
organ system | Many organs working together to perform a specific job |
organism | A living thing that carries out its own life activities |
What is the function of a nucleus? | Holds the chromosomes, "directs/boss of cell activities" |
What is the function of the nucleolus? | Makes Ribosome. |
What is the function of a chromosome? | Controls growth and reproduction. Cell's instructions |
What is the function of a ribosome? | Produces proteins. |
What is the function of the endoplasmic reticulum? | Transports proteins throughout the cell. |
What is the function of the golgi complex? | Packages proteins. |
What is the function of the cytoplasm? | Jelly-like fluid that supports the organelles within a cell. |
What is the function of a the cell membrane? | Controls movement into and out of the cell. |
What is the function of a lysosome? | Removes waste from the cell. |
What is the function of a vacuole? | Stores water, waste and other raw materials. |
What is the function of the mitochondria? | Provides energy to the cell. |
What is the function of a chloroplast? | The location of photosynthesis in a plant cell. |
What is the function of a cell wall? | Provides support and protection to plant cells. |
What is the primary shape of some plant cells and how does this compare to some animal cells? | Plants are rectangular while animals are circular. |
What process can plant cells do that animal cells cannot? | Plants can perform photosynthesis while animals cannot. |
Which organelle do plants have only a large one vs. animals have many small ones? | Vacuole |
What provides plants support and protection but is missing in animal cells? | a cell wall |
What is a eukaryotic cell? | a cell with a nucleus such as plant and animal cells. |
What is a prokaryotic cell? | cells without nucleus such as bacteria. |
What does the cell theory say about where cells come from? | Cells come from other cells. (Cell Theory) |
What does the cell theory say is the basic unit of life? | the cell (Cell Theory) |
What is the smallest number of cells needed for an organism to be alive? | one (Cell Theory) |
Over many generations polar bears grow bigger feet to allow it to easily walk on ice, this is what type of living characteristic? | Living things can adapt. |
When a bee gets angry when it's hive is disturbed, this is what type of living characteristic? | Living things can respond |
When a female dog has puppies, this is what type of living characteristic? | Living things can reproduce. |
When a human starts as a baby but becomes an adult, this is what type of living characteristic? | Living things can grow and develop. |
Schleiden and Schwann proved that plants and animals are made of these. This is what type of living characteristic? | Living things are made of cells. |
When wolves attack cattle (cows) for food, this is what type of living characteristic? | Living things can obtain and use energy. |
What is osmosis? | the diffusion of water |
What is diffusion? | The movement of particles from high concentration to low concentration. |
What does semi-permeable mean? | Only certain things can get in or out. |
Which organelle is semi-permeable? | the cell membrane. |
List the 6 stages of the cell cycle. | Interphase, prophase, metaphase, anaphase, telophase, cytokinesis |
Chromosomes duplicate and organelles copy in which stage of cell cycle? | Interphase |
Nucleus breaks apart; chromosomes look like a bowl of spaghetti in which stage of cell cycle? | Prophase |
Chromosomes line up in the middle of the cell in which stage of cell cycle? | Metaphase |
Chromosomes move to each side of the cell. Copied ones on a side and original on the other side. Chromosomes away in which stage of cell cycle? | Anaphase |
Two new nuclei form in which stage of cell cycle? | Telophase |
Cell pinches off creating two new daughter cells in which stage of cell cycle? | Cytokinesis |
sexual reproduction | 2 parents makes a offspring that is a combination of the two DNAs. |
asexual reproduction | 1 parent makes identical offspring. |
sexual reproduction advantage | offspring are different, Since offspring are combinations of the parents they can adapt and survive more situation. |
sexual reproduction disadvantage | slow process taking months to create offspring |
asexual reproduction advantage | fast process taking minutes to hours to create offspring |
asexual reproduction disadvantage | offspring are identical |
What was Leuwenhoek's discovery? | Single celled organisms in pond water |
What was Hooke's discovery? | Discovered and named cells |
What was Pastuer discovery? | Disproved Spontaneous Generation |
What was Schleiden discovery? | Discovered all parts of Plants are made of Cells |
What was Schwann discovery? | Discovered all parts of Animal are made of cells |
What was Virchow discovery? | Discovered that cells come from pre-existing cells, but took this discovery from another scientist. (May have borrowed the idea :-) |
What has to happen before a cell can divide? | Duplicate (copy) the chromosomes (DNA) |
What was Remak's discovery? | Actually did the work for cells come from other cells. Virchow published his idea. |