Cell structure, function, and organization Flashcards

1
Q

what is a cells 3 main parts

A

Plasma membrane
Cytoplasm
Nucleus

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2
Q

Organelles function

A

carry out metabolic functions necessary to maintain the cell.. Also called cellular functions.

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3
Q

Smooth endoplasmic reticulum function

A

site of lipid production and storage

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4
Q

rough endoplasmic reticulum function

A

a cell organelle containing ribosomes that synthesizes and processes proteins in the cell

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5
Q

Golgi apparatus function

A

where protein vesicles are modified, packaged, and transported to where they are needed. Golgi often referred to as the manufacturing and shipping department of the cell. also responsible for packing digestive enzymes within vesicles known as lysosomes

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6
Q

Lysosomes function

A

Break down polymers. Necessary for cellular metabolism

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7
Q

Mitochondria function

A

organelle changes food energy into usable cellular energy via the process known as cellular respiration. usable energy is adenosine triphosphate ATP

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8
Q

In mitosis, one cell reproduces

A

into two genetically identical daughter cells

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9
Q

Events of mitosis

A

interphase
prophase
metaphase
anaphase
telophase

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10
Q

interphase

A

DNA replicates

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11
Q

prophase

A

chromosomes condense, and visible chromosomes appear

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12
Q

Metaphase

A

chromosomes align

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13
Q

anaphase

A

chromosomes are pulled apart to the poles. Cell division begins

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14
Q

telophase

A

two nuclei form. daughter cells separate

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15
Q

Meiosis events

A

interphase
Meiosis I
prophase I
metaphase I
anaphase I
telophase I
Meiosis II
prophase II
metaphase II
anaphase II
telophase II

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16
Q

Interphase in meiosis

A

DNA replicates

17
Q

prophase I

A

homologous chromosomes pair

18
Q

metaphase I

A

homologous chromosomes align

19
Q

anaphase I

A

homologous chromosomes pull to opposite ends of the cell

20
Q

telophase I

A

nuclear membranes form as the cell separates into two

21
Q

prophase II

A

daughter cells contain half the chromosomes of the original cell

22
Q

metaphase II

A

chromosomes align

23
Q

anaphase II

A

sister chromatids separate and move to opposite ends of the cells

24
Q

telophase II

A

nuclear membranes form as the two cells separate into four haploid daughter cells

25
Q

Tissues

A

groups of similar cells that work together to perform a shared function.
4 basic types of tissues

26
Q

4 basic types of tissues

A

epithelial tissue
connective tissue
muscle tissue
nervous tissue

27
Q

epithelial tissue

A

covers body surfaces, lines body cavities, and serves as a protective barrier(e.g. skin)

28
Q

connective tissue

A

connects other tissues to each other and serves to bind and support body parts

29
Q

muscle tissue

A

moves the body and its contents by contraction

30
Q

nervous tissue

A

receives stimuli from the internal or external environment and communicates through electrical impulses with the rest of the body

31
Q

Levels to organization in multicellular organisms

A

atoms
molecules
organelles
cells
tissues
organs
organ systems
living organism