Biology Hesi Flashcards

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1
Q

the scientific method

A
  1. observation
  2. hypothesis
  3. experiment
  4. conclusion
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2
Q

what is the key to life

A

Water

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3
Q

The levels of Organization

A
  1. Atoms
  2. molecules
  3. macromolecules
  4. organelles
  5. Cells
    6.Tissues
  6. Organs
  7. organ system
  8. the organism
  9. population
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4
Q

Macromolecules

A
  1. Carbohydrate
    2.Nucleic Acid
  2. Proteins
  3. Lipids
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5
Q

Deoxyribonucleic Acid

A

-A unique organism to a particular organism
-Code for replication

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6
Q

Ribonucleic Acid (RNA)

A

-Transfers information from DNA to protein as a messenger

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7
Q

DNA Genetic sequences

A

-Adenine
-Thymine
-Cytosine
-Guanine

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8
Q

DNA Gentic Sequence Binding

A

Adenine - Thymine
Cytosine - Guanine
Thymine- Adenine
Guanine- Cytosin

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9
Q

in RNA what does Adenine pair with

A

Uracil

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10
Q

Punnet Squares

A

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11
Q

Genotype

A

The genetic makeup of and organisms genes

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12
Q

Phenotype

A

The physical characteristics that are observable
example: Height, eye color, Hair

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13
Q

Alleles

A

Having one or more versions of DNA

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14
Q

Dominant Alleles

A

Capitalized Letters
Examples: D, G, B

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15
Q

Recessive Alleles

A

Lower case letters
c, d, g

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16
Q

Heterozygous

A

two different alleles
example: Bb, Dd, Gb

17
Q

Homozygous

A

Same alleles
example: BB, bb, rr, RR

18
Q

what percent is each box of a punnet square?

A

25

19
Q

Basic Cell structure

A

20
Q

Nucleus

A

-activates of the cell
-the site of DNA and RNA synthesis

21
Q

centrosomes

A

involved in cell division

22
Q

Mitochondria

A

the powerhouse of the cell

23
Q

Ribosomes

A

where protein is made ( protein synthesis)
2 types: Free and RER

24
Q

Rough endoplasmic reticulum

A

synthesis of protien
Membrane production
Contains ribosomes

25
Q

Smooth Endoplasmic Reticulum

A

creation and storage of lipids and steroids
detoxification and metabolizes
no ribosomes

26
Q

lysosomes

A

cell janitors
disposes of waste

27
Q

vacuoles

A

storage warehouse for molecules

28
Q

Golgi Apparatus

A

Shipping Department
Packing processing and shipping occurs

29
Q

Plant Cell structures

A