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Final Exam
Honors Biology Final
60
Science
9th Grade
12/13/2016

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Cards

Term
How to recognize the carbohydrate formula
Definition
1:2:1 ratio of Carbon:Hydrogen:Oxygen
Term
The function of a carbohydrate
Definition
To provide quick energy
Term
Dehydration Synthesis
Definition
Takes out and combines the water as well as forming a polysaccharide
Term
Hydrolysis Reaction
Definition

How carbs breakthings apart using water

 A poly saccharide into monosaccharide(s) and disaccharide(s)

Term
What are lipids made of?
Definition
Carbon, Hydrogen, and Oxygen
Term
What is the function of lipids?
Definition
Energy storage, regulate body temperature, regulate hormones, make up the cell membrane
Term
How are lipids arranged in the cell membrane?
Definition
The tails on the inside and the heads facing outwards towards the water
Term
What are proteins made of?
Definition
Amino acids
Term
What is the first layer of protein structure and what does it look like?
Definition
Primary strcuture; a linear arrangement of amino acids
Term
What is the second layer of protein structure and what does it look like?
Definition
Secondary structure; folding and coiling of the string of amino acids
Term
What is the third layer of protein structure and what does it look like?
Definition
Tertiary structure; a three dimensional structure made from the coiling and folding of the string
Term
What is the fourth layer of protein structure and what does it look like?
Definition
Quaternary structure; two or more tertiary structures locking together
Term
What is the function of proteins?
Definition
Make up muscles, proteins in eyes and hair, red blood cells, scabs, hormones, etc. (nearly everything in the body)
Term
What determines the function of a protein?
Definition
The shape
Term
What are enzymes?
Definition
They speed up a chemical reaction without being used up
Term
What is an example of an enzyme?
Definition
A hole punch
Term
What is the function of DNA?
Definition
Contains genetic instructions for the devlopment and function of living things
Term
What is the sructure of DNA?
Definition

A twisted ladder

Sugar and phosphate on the outside

Base pairs join at the sugars

Base pairs A&T and G&C join with hydrogen bonds

Term
Purines vs. Pyrimidines
Definition
Pyrimidines are sections of purines
Term
What are histones?
Definition
a group of basic proteins found in a chromatin
Term
What are nucleosomes?
Definition
DNA wrapped around a histone
Term
What is the process of replication?
Definition
Copying DNA
Term
What is the process of transcription?
Definition
The process of using DNA to make RNA
Term
What is a mutation and how does it happen?
Definition
When there is a change in the structure of a gene
Term
What is PCR and how does it work?
Definition
Takes DNA and has a way of copying it to make it easier to work with; Heats it up, separates them, allows them to cool, forms new bonds
Term
What are restriction enzymes and what are they used for?
Definition
They cut the DNA molecule in a particular place; cut DNA into a ton of tiny pieces
Term
What is gel electrophoresis and what info can be gathered from it?
Definition
Process by which you are comparing two saamples of DNA; the relation between DNA
Term
How are genetically modified organisms made?
Definition
PCR makes tons of copies, chosen gene is cut with restriction enzymes, cut organism so they both have sticky ends, add enzymes to help join the sticky ends together
Term
What are the three types of RNA and what does each do?
Definition

mRNA carries info from DNA to cytoplasm

tRNA brings in the amino acids to build the protein

rRNA acts like an enzyme to position the mRNA and tRNA so the protein forms

Term
What are the three ways that RNA is different from DNA?
Definition

Ribose vs. Deoxyribose

Uracil vs. Thymine

Single stranded

Term
Steps of Replication
Definition

1. Helicase

2. Topoisomerase

Term
Roles of promoters, operators, and repressors during Transcription
Definition

Promoters: where the RNA Polymerase attaches (TATA Box)

Operators: an on off switch

Repressors: attach at the operator

Attached repressor=Operator off

Term
Process of translation
Definition
Process of making protein using RNA
Term
The structure of chromosomes during mitosis
Definition
Sister chromatids, spindle fibers form at the cenromere, the chromatids are pulled apart
Term
How can RNA be translated into proteins?
Definition

mRNA codes for amino acids using three letter groups (codons)

rRNA positions the molecules the right way so the proteins can get built

tRNA carries in the correct amino acids to build the protein by matching three bases (anticodons) to the codon

Term
Why does water have polarity?
Definition
The more protons and neutrons in the nucleus means that they will have more electrons
Term
Why is water a good solvent?
Definition
It has both charges
Term
What is the pH of water?
Definition
7
Term
What are the three parts of cell theory?
Definition

1. All living things are made up of cells.

2. Cells are the basic unit of structure and function.

3. Cells come from existing cells.

Term
Why must cells be small?
Definition
The nutrients can only enter from the outside.
Term
What is the difference between prokaryotes and eukaryotes?
Definition

1 vs. 1+

Eukaryotes are larger

Prokaryotes are older

Simple vs. Complex

Eukaryotes have organelles

Circular vs. Strand DNA

Term
Plant vs. Animal Cells
Definition
Only plant cells have a cell membrane
Term
What is the function of the cell membrane?
Definition
It contains and protects cell by controlling what enters and leaves
Term
How do molecules move during passive transport?
Definition
From high concentration to low concentration without using energy
Term
What is diffusion?
Definition
The tendency of atoms to move from an area of high concentration to a lower concentration
Term
What is osmosis?
Definition
The natural tendency of water to diffuse from high to low across a membrane
Term
How do molecules move during active transport?
Definition
Across the membrane from low concentration to high concentration while using energy
Term
What is the difference between the light cycle and the dar cycle?
Definition
The light cycle is during the day and the dark cycle at night
Term
What is the difference between Photosystems 1 and 2
Definition
2 happens first
Term
What are the steps of cellular respiration?
Definition

1. Glycolysis

2. Kreb's Cycle

3. Electron Transport Chain

Term
How much ATP is produced in each step of cellular respiration?
Definition

1. 2

2. 2

3. 32

Term
What happens during cellular respiration without oxygen?
Definition
No more ATP is made and anerobic respiration commences
Term
What is the function of the nucleus?
Definition
DNA storage
Term
What is the function of the nucleolus?
Definition
DNA to make the ribosomes
Term
What is the function of the ribosome?
Definition
Protein production
Term
What is the function of the endoplasmic reticulum?
Definition
Makes lipids and transports things
Term
What is the function of the golgi apparatus?
Definition
Collect, package,and modify stuff in the cell
Term
What is the function of the vacuole?
Definition
A storage area
Term
What is the function of the lysosome?
Definition
Contains digestive enzymes to recycle molecules that are no longer needed
Term
What is the function of the cell wall?
Definition
To provide structure and protection for plant cells
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