Organic Molecules Flashcards
Plants store glucose as
starch
The joining of two adjacent amino acids is called
a covalent bond, a dehydration reaction, and a peptide bond
The polysaccharide found in plant cell walls is
cellulose
Which of these ions is important for acid-base balance?
H+
Does sodium chloride contains covalent bonds?
No
An example of a dehydration reaction would be
building lipids from fatty acids
Radioactive elements differ in their
number of neutrons
Which of the following is an example of a polysaccharide used for energy storage?
glycogen
Carbon and oxygen atoms can be found in
starch, glucose, amino acids, lipids
Na+ movement across a plasma membrane occurs by
active transport
Photosynthesis occurs in
chloroplasts
The product of photosynthesis are
carbohydrates and oxygen
Which of the following pertains to an RNA nucleotide and not to a DNA nucleotide?
contains the sugar ribose
The movement of water from an area of high to low water concentration would be called
diffusion
After salt is put on roads during icy weather, why does the grass along the roadside often die?
The salt creates a hypertonic environment, which kills the grass
Phagocytosis is common in
amoebas and white blood cells
Which of the following is NOT a function of proteins present in the plasma membrane?
producing lipid molecules
Mitochondria and chloroplasts contain ____________ and are able to synthesize ___________
DNA, proteins
Proteins are produced
in the cytoplasm or the rough ER
The organelle stores water
vacuoles
Most enzymes are _________________
proteins
Process in which an intracellular vesicle fuses with the plasma membrane so that the vesicle’s contents are released outside the cell
exocytosis
When a cell is placed in a hypotonic solution,
water exits the cell toward the area of lower solute concentration.
Glycolipids contain ____________ and ______________
carbohydrates, lipids
Passive transfer of a substance into and out of a cell along a concentration gradient by a process that requires a carrier
facilitated transport
