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Characteristics of Life
Carbon based molecules
The Cell
Labs and Experimental Design
Bio-Pourri
100
(True/False) having a nucleus is a characteristic of life
False!, prokaryotes do not have a nucleus
100
Carbohydrates are made up of these three elements in this ratio.
1 Carbon, 2 Hydrogen, and 1 Oxygen.
100
What are two main differences between prokaryotes and eukaryotes?
Prokaryotes lack a nucleus AND membrane bound organelles.
100
The variable that is measured as a result of an experimental change is the __________ variable.
The variable that is measured as a result of an experimental change is the dependent variable.
100
The property of water that describes how water is attracted to itself is called
Cohesion is water's attraction to itself. An example would be surface tension and how a water strider insect can rest on the surface of the water without falling in.
200
True or False: Aerobic respiration is a characteristic of life
False! Chemosynthetic bacteria do not undergo aerobic respiration of oxygen.
200
This type of carbon-based molecule is used to code for detailed instructions to build proteins, be specific.
Nucleic acids, specifically mRNA are polymers used to code for building proteins.
200
The organelles are where digestive enzymes are found.
Lysosomes!
200
Tetrahymena bring food into their bodies through this feeding apparatus.
Cyclostome
200
This is a balanced equation for photosynthesis
6CO2+light+6H2O -> C6H12O6 + 6O2
300
Gradual change over time of a physical characteristic is an example of this characteristic of life
All life exhibit adaptation and evolution
300
These six elements (in order of importance) are found in all living organisms
carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur
300
This organelle is where proteins are made and packaged then moved to other parts of the cell.
Rough Endoplasmic Reticulum
300
Hydrogen peroxide reacts with catalase enzyme to create these products.
Water and Oxygen gas.
300
Enzymes are important molecules speed up reactions by lowering the_____________ of reactions.
Enzymes help to lower the activation energy of reactions.
400
Define Homeostasis
The maintenance of constant internal conditions in an organism
400
Nucleic acids are made up of these 3 components
Sugar, phosphate and nucleotide.
400
Cellulose would be found in the organelle of this type of cell.
Plant cell walls, Bacterial cell walls, some others like some Fungi.
400
A cell will lose water due to osmosis when placed in this type of solution.
A cell will lose water due to osmosis when placed in a hypertonic solution.
400
Beta-pleated sheets and Alpha helices are and example ______ protein structure.
The Beta-pleated sheet and alpha helix are examples of protein secondary structure.
500
Diamonds are highly organized carbon-based molecules. Is it alive, and what characteristic of life could you use to prove your answer?
Diamonds are organized but not complex, they are only Carbon atoms in a structured lattice.
500
These types of fatty acids have only carbon-carbon single bonds, come from animal fats, and are solid at room temperature.
Saturated fatty acids are straight-chained FA's and are solid at room temperature, like butter.
500
The finding that these two organelles have their own DNA helped scientists come up with the concept of endosymbiosis.
Mitochondria and Chloroplasts have their own DNA and have helped scientists come up with the concept of endosymbiosis.
500
Lugol's solution contains Iodine, turns purple-black when positive and is an indicator of this carbon-based molecule.
Lugol's solution is a test for starch.
500
What are the products of glycolysis?
2 ATP and 2, 3-C molecules