208 cards
The greater the ratio of lipid to protein, the ____ the density.
The greater the ratio of ____, the lower the density.
The major classes of lipoproteins in humans are ____.
The primary biological importance of carbohydrates lies with their usefulness in ____.
The structure of carbohydrates also makes it possible for them to join together through a dehydration reaction, forming long chains, ____,…
The formula for any carbohydrate is:
Six carbon carbohydrates called ____.
____ carbon carbohydrates called hexoses.
The cell can oxidize glucose to transfer its chemical energy to a more readily usable form, ____.
If the cell already has sufficient ATP, ____
Glycogen is a branched glucose polymer with ____ linkages.
____ is a branched glucose polymer with alpha linkages.
____ increases the rate of facilitated diffusion for glucose and other monosaccharides.
In the absence of insulin, only ____ cells are capable of absorbing sufficient amounts of glucose via the facilitated transport system.
Plants use ____ for long-term storage.
Starch comes in two forms: a____.
____ comes in two forms: amylose and amylopectin.
Cellulose is used as a structural material rather than for energy storage, and it is composed of ____ linkages.
Cellulose is used as a ____ material rather than for energy storage, and it is composed of beta linkages.
Humans have enzymes to digest the ____ linkages of cellulose.
Humans have enzymes to digest the alpha linkages of starch and glycogen but do not have enzymes that can digest the beta linkages of ____.
Nucletotides are made up of the following components: ____.
The ____, are able to link together to form a stable and organized backbone of nucleotides.
Nitrogenous bases can form ____ bonds with each other that stabilize the double-stranded structure of DNA.
____ can form weak hydrogen bonds with each other that stabilize the double-stranded structure of DNA.
A ____ consists of a pentose sugar attached to a nitrogenous base.
A nucleoside consists of a ____.
____ are formed by the addition of one or more phosphate groups to a nucleoside.
Nucleotides are formed by the addition of ____ to a nucleoside.
Nucleotides are formed by the addition of one or more phosphate groups to a ____.
Nucleotides form polymers to create ____.
Nucleotides are joined together into long strands by ____
Phosphodiester bonds occur between the ____ of the other nucleotide.
Nucleotides are written in the ____' direction.
Adenine and guanine are two ring structures called ____.
____ are two ring structures called purines.
Cytosine and thymine are single ring structures called ____.
____ are single ring structures called pyrimidines.
DNA usually exists in a particular form described by the ____ model.
In DNA normal form, the two strands lie side by side in ____ directions (antiparallel) bound together by hydrogen bonds between nitrogenous…
The normal form of DNA is known as the ____ form.
The length of a DNA strand is measured in ____
Adenine forms ____ hydrogen bonds with thymine.
____.
____.
Guanine forms ____ hydrogen bonds with cytosine.
When complementary strands bind together, they curl into a ____.
When ____ strands bind together, they curl into a double helix.
The double helix contains two distinct grooves called the ____ groove.
Each DNA groove spirals ____ around the double helix for every ten base pairs.
Each DNA groove spirals once around the double helix for every ____ base pairs.
More energy is required to separate ____ bonds.
Uracil is a ____.
RNA (ribonucleic acid) is identical to DNA in structure except that: 1. ____
RNA can move through the nuclear pores and is not confined to the nucleus. (____)
____ are lipids that act as hormones.
Vitamins are a particular type of organic molecule that are ____, meaning they cannot be produced by the body.
Vitamins are a particular type of organic molecule that are essential, meaning ____
____ are a particular type of organic molecule that are essential, meaning they cannot be produced by the body.
Two types of vitamins are ____.