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Worksheets2.1-2.2 quizzzz
Total questions: 20
Worksheet time: 12mins
__________ is the web of all enzyme-catalyzed reactions in a cell or organism.
anabolism
catabolism
metabolism
all of the above
In this reaction, water is added to a disaccharide (sucrose) to break it into two monosaccharides. What type of reaction is this?
anabolic reaction: condensation
anabolic reaction: hydrolysis
catabolic reaction: condensation
catabolic reaction: hydrolysis
which of the following lists the 4 base pairs?
adenine (A), cytosine (C), gamine (G) and thymeme (T)
adenine (A), cytosine (C), guanine (G) and thymine (T)
abenine (A), cytosine (C), guanine (G) and thymine (T)
acenine (A), cytosine (C), guanine (C) and ythimine (T)
nucleotide consists of ____________, ___________ and ____ groups ________ Bonded together
chromosomes, chromatin, metabolically
sugar, base, hydrogen, covalently
glusose, atoms, amine, ionically
sugar, base, phosphate, covalently
how many COVALENT BONDS can CARBON bond to?
2
4
1
3
Which one of them are lipids
Second
first
Third
all
USES of protein
hormones
Cell wall
enzymes
repair
WHAT DOES NUCLEIC ACID CONTAINS
ALL OF THE BELOW
CARBON
NITROGEN
PHOSPHORUS
HYDROGEN
WHAT IS THIS
BETA GLUCOSE
RIBOSE
ALPHA GLUCOSE
CHARLIE GLUCOSE
WHICH OF THESE REPRESENTS AMINO ACID
C
A
B
D
DEFINITION OF HYDROLYSIS
the mixing of two liquids that usually are unmixable together to form an emulsion. Two liquids can form different types of emulsions depending on which liquid was dispersed in which, with one liquid being the dispersed phase and the other being the external phase, which is added into the dispersed phase.
is a process that occurs in multicellular when a cell intentionally “decides” to die. This often occurs for the greater good of the whole organism, such as when the cell’s DNA has become damaged and it may become cancerous.
when plant cells lose water after being placed in a solution that has a higher concentration of solutes than the cell does. This is known as a hypertonic solution. Water flows out of the cells and into the surrounding fluid due to osmosis. This causes the protoplasm, all the material on the inside of the cell, to shrink away from the cell wall. Severe water loss that leads to the collapse of the cell wall can result in cell death. Since osmosis is a process that requires no energy on the part of the cell and cannot be controlled, cells cannot stop plasmolysis from taking place.
A chemical reaction in which water is used to break down a compound; this is achieved by breaking a covalent bond in the compound by inserting a water molecule across the bond.
The oxygen atom in a water molecule has a partial ______ charge.
negative
positive
Water is made up of two hydrogen atoms joined by a _______ bond to an oxygen atom.
covalent
ionic
hydrogen
The property of water that results in water molecules "sticking" to one another is called
cohesion
adhesion
high specific heat
high heat of fusion
An example of a hydrophobic molecule is
oil.
salt.
glucose.
cellulose.
The majority of oxygen in the blood is carried by ________ in red blood cells.
hemoglobin
fats
glucose
sodium chloride
Why do we sweat? When water evaporates, it ________ a lot of energy from the system due to the fact that it has a high latent heat of evaporation. This is felt as a ________ sensation.
removes, cooling
removes, heating
adds, cooling
adds, heating
The property of water that results in water molecules "sticking" to other charged or polar molecules is
cohesion
adhesion
high specific heat
high heat of fusion
The reason that the hydrogen atoms have a partial positive charge is the electrons are attracted more _________ to the nucleus of the oxygen atom.
weakly
strongly
The bonds between water molecules are ______ bonds.
covalent
ionic
hydrogen
