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WorksheetsBIOL 03 PLTL
Total questions: 45
Worksheet time: 11hrs 15mins
What are hydrocarbons?
molecules consisting of C and O
same molecular formula, different forms
molecules consisting of C and H
carbon molecules that go hydro
What are isomers?
same form, different molecular formula
same molecular formula, different forms
carboxyl groups
same forms and same molecular formulas
What are macromolecules made up of?
polymers
functional groups
DNA
RNA
What is the simplest carbohydrate?
bread
disaccarhide
polysaccharide
monosaccarhide
What are ribose and ribulose?
fatty acids
structural isomers
ribbons
structural acids
Glycogen are storage polysaccharides for __?
animals
plants
insects
humasn
Starch is a storage polysaccharide for __?
plants
animals
insects
humans
What is cellulose?
a fatty acid
cellular wall in plants
cellular wall in insects
What do functional groups determine?
reactivity and molecular properties
how they function
the size
the shape
What are the 4 groups in macromolecules?
DNA, RNA, proteins, lipids
fatty acids, nucleic acids, carbs, proteins
carbohydrates, nucleic acids, proteins, lipids
DNA, RNA, fatty acids, proteins
How are polymers broken apart?
hydrocarbon reaction
hydrolysis reaction
mitosis
meiosis
What is a disaccharide?
3 linked monosaccharides
two monosaccharides that are linked by dehydration
two linked polysaccharides
two separate monosaccharides
Why is glucose important?
major transport molecule
it is a major cellular fuel and forms transport disaccharides
its yummy
its a cellular fuell and it breaks transport polysaccharides
What are the two storage polysaccharides?
starch and glycolic acid
starch and glycogen
chitin and cellulose
chitin and glycogen
What are the two structure polysaccharides?
chitin and cellulose
chitin and glycogen
starch and glycogen
starch and glycolic acid
What do nucleotides consist of?
a nitrogenous group and a phosphate base
a phosphate group and a nitrogenous base
Nonpolar is ___
hydrophilic
hydrophobic
Polar is __.
hydrophilic
hydrophobic
Sequences of amino acids determine __.
structure
color
size
fatty acids
Primary structure dictates secondary and tertiary structure.
True
False
What is denaturation?
activation of protein
it becomes unnatural
loss of protein shape, becomes biologically inactive
loss of DNA, becomes biologically inactive
What are protein motifs?
the purpose of the protein
the reason proteins come together
dissimilar structures among similar proteins
similar structures among otherwise dissimilar proteins
Lipids are __
similar structures among otherwise dissimilar proteins
groups of big molecules characterized by their hydrophobic behavior
Fats are __.
similar structures among otherwise dissimilar proteins
large molecules assembled from smaller molecules by dehydration
groups of big molecules characterized by their hydrophobic behavior
small molecules assembled from smaller molecules by hydration
Saturated fats ...
animal fats; no double bonds
vegetable fats; cis double bond
Unsaturated fats...
vegetable fats; cis double bond
animal fats; no double bonds
In aqueous environments, phospholipid membranes form ___.
spontaneously
slowly
Can a eukaryotic cell have a cell wall?
yes
no
What do nuclear pores do?
keep DNA, RNA, and pilli out of the cell.
keep proteins, RNA, and ribosomes out of the cell.
regulate entry and exit of DNA, RNA, and pilli.
regulate entry and exit of proteins, RNA, and ribosomes
What are nuclear lamina?
protein filaments that line the inner surface of the nucleus envelope and gives it shape
parts of the nucleus that regulate entry of ribosomes
protein filaments that line the outer surface of the nucleus and gives it shape
parts of the nucleus that determine growth
What is endoplasmic reticulum?
transport vesicles used to transport materials from ER to other endomembrane systems
contains DNA, genetic and inheritance info
What does Rough ER do?
stores intracellular Ca2+
and breaks down molecules to make them soluble
synthesizes proteins on surface and secretes proteins to other organelles
What does Smooth ER do?
stores intracellular Ca2+
and breaks down molecules to make them soluble
synthesizes proteins on surface and
secretes proteins to other organelles
What is the function of the Golgi body/apparatus?
(TWO ANSWERS)
secrete proteins to other organelles
synthesizes proteins on surface
collects, packs, and distributes molecules through cisface and transface
modifies proteins and lipids and forms glycoproteins and glycolipids
Mitochondria is found in ALL eukaryotes.
True
False
What best describes the plasma membrane?
cell membrane consists of fluid bilayer of phospholipid molecules in which proteins are embedded or otherwise associated
building unit of biological membranes
transport of molecules and ions across concentration gradient
selectively permeable barrier that separates interior of cell from extracellular environment
What is the fluid mosaic model?
building unit of biological membranes
cell membrane consists of fluid bilayer of phospholipid molecules in which proteins are embedded or otherwise associated
transport of molecules and ions across concentration gradient
Phospholipids are __.
the building unit of RNA
the building unit of biological membranes
fatty acids
the building unit of DNA.
Phospholipids have a ____ head and a ____ tail.
hydrophilic, hydrophobic
hydrophobic, hydrophilic
hydrophilic, hydrophilic
hydrophobic, hydrophobic
What is the function of transport protein?
carry out chemical reactions
allows certain solutes to enter or leave
detect chemical messages
linking of surface proteins to cytoskeleton
What is passive transport?
transport of molecules and ions across concentration gradient
transport of enzymes across the cell wall
What is facilitated diffusion?
diffusion controlled by enzymes and phospholipids
diffusion controlled by proteins/channels
What is osmosis?
diffusion of water towards higher solute concentration
diffusion of carbon molecules
diffusion of oxygen molecules
What is osmotic pressure?
the force needed to stop osmosis
the pressure during osmosis
What is endocytosis?
large particle or cell
molecules enter cells within vesicles that pinch inward from the plasma membrane
liquids and small solutes
receptor binds to ligand
