Biology Exam
Name one place in your body that you would find cilia.
Respiratory tract
Ear
What is lactose?
Sugar that you find in milk
Photosynthesis and cell respiration are _______ _______
Complimentary reactions
What are the factors that influence enzyme activity?
PH, temperature, and inhibitors
Define denature
Unfold
What are chloroplasts?
Organelles found in cells that perform photosynthesis
What is the end results of photosynthesis?
Water + glucose + O2
Names of prokaryotes.
Bacteria and Archaea
What starts the process if cell respiration?
Glucose + water + O2
What are the 3 main pigments that determine leaf color?
Chlorophyll, carotenoids, anthocyanin
______ atoms have full valence shells and are chemically inactive.
Inert
What is a hypotonic solution?
There is more water on the outside of the cell then in the inside of the cell
What is the end result of cell respiration?
CO2 + water + ATP
If oxygen is not available, the process ends with _________.
Fermentation
Anaerobic respiration is also known as _______.
Glycolysis
What do catalysts do?
Lower the activation energy needed for the reaction to happen
What are the 3 parts of the cytoplasm?
Cytosol, organelles, inclusions
In covalent bonds, electrons are _____ so that each atom is able to fill its valence shell at least part of the time.
Atoms with unfilled valence shells participate in ______ in order to fill their shells by gaining , losing, or sharing electrons.
Atomic number
Number of protons in an atom
Names of Eukaryotes
Protista, Animalia, Plantae, Fungi
King Philip Can Order Five Green Salads
Kingdom, Phylum, Class, Order, Family, Genus, Species
The _____ of an enzyme and a substrate determines whether they will interact.
Shape
_______ fats are liquid at room temp. Because of the kinked configuration to their fatty acid chains.
Unsaturated
Carbon14 is an example of a ______ and is used in carbon dating.
Radioisotope
Viruses are alive. (t) (f)
False
A hypothesis is a question. (t) (f)
False
What is the control center of the cell?
Nucleus
What are the two stages of photosynthesis?
Light reactions ; Calvin Cycle
Plant chloroplasts have two interlinked ______ that work in tandem.
Photosystems
How does pH affect enzyme activity?
It can affect the shape of an enzyme and determines optimum pH
Why are viruses not considered living organisms?
Aren't composed of cells; don't reproduce using DNA' don't maintain homeostasis
_______ is located on the leaves/ open and close to allow carbon dioxide in and oxygen outside.
Stomata
What are the different types of Membrane Junctions?
Tight junction; desmosomes; gap junctions
What is the plasma membrane composed of?
Phospholipids; cholesterols; proteins
What are the 3 important parts of the Nucleus?
Nuclear envelope; nucleolus; chromatin
What does the nucleus do?
It is the control center and it contains the genes (DNA)
What is the role of a tight junction?
They bind cells together to make leak-proof sheets
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