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Bio 1053 Exam 1, Biology Chapter 3 Pre-Quiz, Bio 111 Chapter 2- Essential Chemistry, BISC 002 Sec 1 Chap 3, Chapter 3-Question Bank, Final Review Exam 1$14.89
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Bio 1053 Exam 1, Biology Chapter 3 Pre-Quiz, Bio 111 Chapter 2- Essential Chemistry, BISC 002 Sec 1 Chap 3, Chapter 3-Question Bank, Final Review Exam 1
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Bio 1053 Biology
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Bio 1053 Biology
Bio 1053 Exam 1, Biology Chapter 3 Pre-Quiz, Bio 111 Chapter 2- Essential Chemistry, BISC 002 Sec 1 Chap 3, Chapter 3-Question Bank, Final Review Exam 1
In what ways is the science of biology related to our society?
By helping us understand the genetics of our pets, examining the importance of ...
Bio 1053 Exam 1, Biology Chapter 3 Pre-Quiz, Bio 111
Chapter 2- Essential Chemistry, BISC 002 Sec 1 Chap
3, Chapter 3-Question Bank, Final Review Exam 1
In what ways is the science of biology related to our society?
By helping us understand the genetics of our pets, examining the importance of
biodiversity, and through the study of green energy.
What is biology?
the scientific study of life
What functions are properties of life?
Organisms take in energy and use it to perform life's activities, organisms reproduce
their own kind, and living things exhibit complex but ordered organization.
What are two main processes upon which ecosystems depend?
Nutrient recycling and energy flow.
Which substance is NOT recycled but rather lost from ecosystems?
energy.
Which structure can perform all the activities required for life?
Cells.
What name is given to the functional compartments of a cell?
Organelles.
Which concept was proposed by Darwin?
Natural selection.
Which of these is required for natural selection to occur?
Inheritance, unequal reproductive success, individual variation.
Science is...
the inquiry-based effort to describe and explain nature.
A hypothesis is...
a proposed explanation for an observation.
You try to start your car, but is does not start. Which of these is a prediction?
A) My car's battery is dead.
B) If I recharge the battery, then my car will start.
B
Which sequence shows the steps of the process of science in an order in which
they might occur?
exploration, hypothesis, prediction, experiment.
How do hypotheses differ from theories?
Theories are more comprehensive than hypotheses.
The phrase "Most ecosystems are solar powered" refers to the fact that...
solar energy is converted to chemical energy by photosynthesis.
______ is an example of an element.
Nitrogen.
What are the four most common elements found in living organisms?
carbon, oxygen, nitrogen, and hydrogen
In order to have a positive charge, an atom must have...
more protons than electrons
,All atoms of an element have the same number of...
protons
An atom's ______ are found in its nucleus
neutrons and protons
An atom with an electrical charge is an
ion
The bond between oppositely charged ions is an ______ bond
ionic
What type of bond is holding the two atoms?
K + Br -> K+ + Br- -> KBr
ionic
What name is given to bonds that involve the sharing of electrons?
covalent
A single carbon atom can form a maximum of __ covalent bonds
4
monosaccharide + monosaccharide = ________ + water
disaccharide
table sugar is...
sucrose, a disaccharide
for good health, it is important to include ______ in our diets
polysaccharides
which molecule is an example of a polysaccharide?
starch
Plants use which molecule as an energy storing carbohydrate?
starch
cellulose os an example of a...
polysaccharide
A fat contains which molecular components?
three fatty acids and one glycerol molecule
saturated fats are saturated with...
hydrogen
what type of fatty acid has double bonds
unsaturated
Which substance is lowest in unsaturated fats?
beef
a fat that is completed hydrogenated would be...
saturated and solid at room temperature
which outcome is a health effect of a diet high in saturated fats?
increased risk of heart attack
Proteins are polymers constructed from _____ monomers
amino acid
Amino acids include a side group as well as _____
a central carbon, a hydrogen atom, an amino group, and a carboxyl group
A protein's function is dependent on environmental factors such as pH and
temperature. What property of the protein itself dictates a protein's function?
shape
, What is the main sugar found in milk?
lactose
glucose is to starch as ______ are to proteins
amino acids
Which is a function of the plasma membrane?
regulate traffic of chemicals in and out of the cell
The concept of a membrane as a fluid mosaic reflects the ability of ______.
phospholipids and most proteins to drift about in the plane of the membrane
The endomembrane system includes ________
Golgi apparatus, lysosomes, vacuoles, and the endoplasmic reticulum
Based on its function in detoxifying drugs, one would expect to find a large
amount of smooth endoplasmic reticulum in ______ cells
liver
functions of the smooth endoplasmic reticulum include ________
lipid synthesis and drug detoxification
transport vesicles move proteins from the endoplasmic reticulum to what other
organelle
golgi apparatus
which is a function of the golgi apparatus
protein modification
Which parts of a cell are most like the shipping center of a company?
the golgi apparatus
digestion of organic matter inside the cell takes place in what organelle?
lysosome
during a race such as a marathon, the skeletal muscle cells in your legs use a lot
of energy to continually contract and power your muscles. what organelle is most
likely abundant in skeletal muscle cells?
mitochondria
cellular respiration can be described as the conversion of the energy ______
stored in food molecules to energy stored in ATP
Energy can be defined as ______
the capacity to cause change
Glucose molecules provide energy to power the swimming motion of sperm. In
this example the sperm are changing _______ energy into ________ energy
chemical energy into kinetic energy
What compound directly provides energy for cellular work?
ATP
ATP energizes other molecules in cells by transferring a _______ to those
molecules
phosphate group
anything that prevents ATP formation will most likely result in...
death
the sum total of all the chemical reactions that occur in organisms is called
metabolism
in animals, individual cells are grouped into...
tissues
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