Final Exam Review # 1 Question Preview (ID: 18392)
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Amino acids are the building blocks of
a) Carbohydrates
b) Proteins
c) Fats
d) Salts
Monosaccharides such as glucose and other sugars are the building blocks of polysaccharides such as
a) Starch
b) Proteins
c) Fats
d) Bacteria
Protein molecules that catalyze (speed up) chemical reactions are called
a) Bacteria
b) Phosphates
c) Enzymes
d) Hydrates
The 3 dimensional shape of proteins and other molecules influences their
a) Color
b) Functioning
c) Mass
d) Organic composition
Bacteria and other cells that lack a nucleus and membrane-bound organelles are
a) Prokaryotic
b) Eukaryotic
c) Phagocytotic
d) Embryonic
Cells that contain a nucleus and membrane-bound organelles are termed
a) Prokaryotic
b) Eukaryotic
c) Phagocytotic
d) Embryonic
In eukaryotic cells, DNA is found within the
a) Cytoplasm
b) Cell wall
c) Chloroplast
d) Nucleus
Cells that can make their own food, usually through the process of photosynthesis are
a) Heterotrophic
b) Phagocytotic
c) Autotrophic
d) Exocytotic
What process do autotrophic cells use to convert carbon dioxide and water into glucose and oxygen?
a) Cellular respiration
b) Photosynthesis
c) Natural Selection
d) Meiosis
Autotrophic nutrition is accomplished in which organelle?
a) Cell Wall
b) Nucleus
c) Chloroplast
d) Mitochondria
What process do cells use in the presence of oxygen to harvest energy from sugar?
a) Cellular respiration
b) Photosynthesis
c) Natural Selection
d) Meiosis
What organelle is responsible for cellular respiration within a cell?
a) Cell Wall
b) Nucleus
c) Chloroplast
d) Mitochondria
The semi-permeable membrane that surrounds cells is called the
a) Nucleus
b) Cell wall
c) Cell membrane
d) Endoplasmic reticulum
What direction do solutions always move across a semi-permeable membrane during diffusion?
a) Low concentration to high concentration
b) High concentration to low concentration
c) Inside the cell to outside the cell
d) Outside the cell to inside the cell
What size molecules can diffuse across a semi-permeable membrane?
a) All sizes
b) Small and large
c) Large only
d) Small only
What characteristic of a cell will allow for a faster rate of diffusion for that cell?
a) Large surface area
b) Small surface area
c) Dark color
d) Light color
What process occurs when materials need to go across a membrane from low concentration to high concentration?
a) Diffusion
b) Osmosis
c) Active Transport
d) Natural Selection
What is the energy source that is needed to carry materials into and out of cells through membrane proteins?
a) ATP
b) Sugar
c) Phosphate
d) Electricity
What type of proteins in the cell membrane attach to and then transport specific molecules across the cell membrane?
a) Enzymes
b) Receptor Proteins
c) Amino Acids
d) Anemic Proteins
All body cells in an organism have the same DNA but carry out many specific functions because of the process of
a) Differentiation
b) Exploitation
c) Natural Selection
d) Mitosis
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