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Bio 1320 Exam 2 Practice Questions and Answers (100% Pass)

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Bio 1320 Exam 2 Practice Questions and Answers (100% Pass) cell - Answer️️ -the smallest unit of life Cell theory - Answer️️ -every cell came from another, pre existing cell -the facts that all living organisms are made up of one or more cells and that all cells arise from preexisting ...

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  • August 29, 2024
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©SOPHIABENNETT@2024-2025 Saturday, August 24, 2024 8:52 AM

Biology 1320 :Texas State University
Bio 1320 Exam 2 Practice Questions and
Answers (100% Pass)

cell - Answer✔️✔️-the smallest unit of life

Cell theory - Answer✔️✔️-every cell came from another, pre existing cell

-the facts that all living organisms are made up of one or more cells and
that all cells arise from preexisting cells are the foundations of cell theory

3 main principles of cell theory - Answer✔️✔️-

Cells have a common characteristic - Answer✔️✔️--most are small

-a "bigger" being has MORE cells, not bigger cells

-small cells are fast and efficient

Cell Membrane - Answer✔️✔️--encloses the cell and regulates what goes in
and out

-made of phospholipids

Cytoplasm - Answer✔️✔️--all fluid and structures inside the cell membrane
but outside of the nucleus

DNA, RNA, proteins (and other organic molecules) - Answer✔️✔️--we need
organic molecules to build and fuel our cells, which make up our bodies

Ribosomes - Answer✔️✔️--make proteins (using directions from DNA and
RNA)


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, ©SOPHIABENNETT@2024-2025 Saturday, August 24, 2024 8:52 AM

Biology 1320 :Texas State University
-since proteins do nearly everything, all living things (and their cells) must
have ribosomes to build proteins

Eukaryotic cells - Answer✔️✔️--form bodies of animals, plants, fungi, and
protists

-have a nucleus

-larger and more complex than prokaryotes

-have a nucleus and many specialized structures called organelles

-make up all the multicellular organisms we can see (animals, plants and
fungi)

-make up some single celled living things we can't see (protists and yeast -
single celled fungi)

Prokaryotic cells - Answer✔️✔️--no nucleus

-form bodies of bacteria and archaea

-smallest and most simple of cell types

-have very few specialized structures inside

-make up single-celled organisms

-cant see with the naked eye - need a microscope

-instetad of a nucleus, they have a nucleoid region: refers to where the
DNA is located

-prokaryotic cells are so simple they usually take one of 3 common shapes


2

, ©SOPHIABENNETT@2024-2025 Saturday, August 24, 2024 8:52 AM

Biology 1320 :Texas State University
-rod shaped, spherical or corkscrew shaped

Organelles - Answer✔️✔️--compartments that carry out specialized
functions (little organs)

-EX: chloroplasts capture sunlight

-mitochondria generate energy

Nucleus - Answer✔️✔️--control center of a eukaryotic cell

-contains chromosomes, which are made of DNA

-message in DNA leaves nucleus in the form of RNA and goes into
cytoplasm to build proteins

Ribosomes and Rough Endoplasmic Reticulum (ER) - Answer✔️✔️--rough
ER = "rough" because it is studded with ribosomes

-RNA leaves the nucleus and travels to ribosomes on the rough ER

-Makes proteins

Golgi Apparatus - Answer✔️✔️--folds and packages proteins, then sends
them to other parts of the cell or out to the blood stream

-packages are called vesicles

Smooth Endoplasmic Reticulum (ER) - Answer✔️✔️--makes lipids

-sends the lipids through the Golgi Apparatus to get sent out to other parts
of the cell or to the blood stream




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