Sem 2 Exam Flashcards
Aggression and submission are examples of responses organisms show to a conflict situation. Collectively animal behavior lists refer to these as:
Agnostic behavior
when an organism moves directly toward or away from a stimulus, the movement is referred to as:
Taxis
The bond that forms between monosaccharides as a result of condensation synthesis is called:
Glycosidic link
One beta-link to monosaccharide, ______, is used in the formation of cellulose, a molecule that is the primary component in the structure of the ______
Beta-glucose/cell wall
Which of the following statements is/are not a primary function of the carbohydrates?
Carbohydrates are used as identifiers for cell to cell communication
Which of the following are examples of disaccharides?
Maltose and galactose
Common table sugar is composed of or contains which of the following?
Alpha-glucose
Fructose
Sucrose
(all of the above)
Although we can’t digest cellulose, it does playing important role in our diet, how?
Cellulose is referred to as dietary fiber, it helps keep our colon healthy
Cellulose absorbs fat and moves them through the digestive track and out of the body
Cellulose helps to cleanse the digestive track moving undigested or indigestible material through the digestive track
According to class discussion, fructose is especially problematic in our diet because…
Not utilized directly by our cells, gets stored in liver
Fructose is converted into fat in the liver
Excess fat in liver absorbs insulin, required to maintain homeostasis of blood sugar levels
Fatty liver can lead to type-II diabetes
In the Korup Forest of Cameroon a black ant species lives in the hollow branches of the barteria tree. The ants clear algae and fungus from the leaves of the tree, and cut creeping vines away. This would be an example of what form of symbiosis?
Mutualism
A highly branched starch, _____, may be found as an energy storage carbohydrate in anti al tissues
Glycogen
The carbohydrates most responsible for energy storage in nature tend to be composed of…
Alpha-linked monosaccharides
The carbohydrates most responsible for structural and strengthening components in nature tend to be composed of…
Beta-linked monosaccharides
Probably the most significant source of fructose in the American diet is…
High fructose corn syrup used as the sweetener in most soft drinks
Many animals, including man, are not capable of utilizing cellulose produced by the plants. This is because…
They do not have the enzymes capable of breaking beta-bonds
The alpha-linked polysaccharides have a tendency to form which of the following secondary structures
Alpha-helices
A derivative carbohydrate that functions as an intermediary in energy transfer
Fructose-1,6-diphosphate
Sugar phosphate3
Amino sugars are usually used as structural components in nature. The polymer chitin, for example, is used in the _____ of the ______
Exoskeletons/arthropods
Skeletal structures/platyhelminthes
The bond that forms from the synthesis that produces a triglyceride from fatty acid tails and a glycerol molecule is called
Ester linkage
In general, which of the following foods would be rich in saturated fats?
Animal fat
Whole milk
Butter
Lard
Foods containing partially hydrogenated soybean oil, like Debbie’s Snack Cakes
(all of the above)
So, if you were to decide to go on a really long hike and had to pack your food in with you, which of the following foodstuffs would provide the greatest source of energy with least mass?
A pound of margarine
Specialization of the type we see among organisms in The Korup leaves organisms in such communities highly susceptible to…
Any alteration of the ecosystem, like human incursion, decoration, and global climate change
Extinction
Which of the following can contribute to density-dependent regulation of populations?
Intraspecific competition for nutrients
Which of the following are important abiotic factors that can affect the structure and organization of biological communities?
Precipitation, wind
Nutrient availability, soil pH
Temperature, water
Light intensity, seasonality
Which of the following is true with respect to oligotrophic lakes and eutrophic lakes?
Oligotrophic lakes are relatively high in O2 levels
Rates of photosynthesis are higher in eutrophic lakes initially as algal colonies grow
Eutrophic lake water contains higher concentrations of nutrients, especially N, P, K
Sediments in oligotrophic lakes contain low levels of decomposable organic matter
Sediments in eutrophic lakes contain high levels of decomposable organic matter
What would be a likely entry for box A?
Fertilizers washed into the lake
