Please help with biology multiple choice. 10 pts!?

eric S

New member
1.) The principle inorganic compound found in living things is
carbon.
oxygen.
water.
glucose.
carbon dioxide.
2.) Kangaroo rats are better able to concentrate urine than humans are. It would be expected that compared to the nephrons of humans kidneys, the nephrons of kangaroo-rat kidneys would have
thicker walls, which are impermeable to water
shorter loops of Henle
longer loops of Henle
shorter collecting ducts
longer proximal convoluted tubules
3.) The similarities between the arm of a human, the fin of a whale, the foreleg of a dog, and the wing of a bird provide support for the concept of
survival of the fittest
acquired characteristics
reproductive isolation
common ancestry
convergence
4.) Which of the following pairs of terms is NOT correctly matched?
rods: light intensity
cones: color
semicircular canal: gravity
eardrum: sound waves
hair cells of cochlea: vibrations
5.) The best laboratory equipment to magnify the inner structure of a single bacterium is a(n)
compound light microscope
ultracentrifuge
electron microscope
microdissection instrument
dissecting microscope
6.) According to the heterotroph hypothesis, which event had to occur before oxygen filled the atmosphere?
Heterotrophs had to remove carbon dioxide from the air.
Autotrophs, which make their own food, had to evolve.
Heterotrophs had to evolve.
Autotrophs had to convert atmospheric nitrogen to nitrate
Heterotrophs had to carry out their metabolic activity in the presence of oxygen.
7.) Which structure in an earthworm has a function similar to that of the alveoli of a human?
malphigian tubules
nephridia
flame cells
gills
skin
8.) Molecule which bonds directly to a phosphate in RNA.
adenine
guanine
uracil
deoxyribose
ribose
9.) A base normally found in RNA but not in DNA.
adenine
guanine
uracil
deoxyribose
ribose
10.) Sugar molecule found in deoxyribonucleic acid.
adenine
guanine
uracil
deoxyribose
ribose All of the following organelles are associated with protein synthesis EXCEPT:
ribosomes
Golgi bodies
the nucleus
the rough endoplasmic reticulum
the smooth endoplasmic reticulum
17.) A major difference between bacterial cells and animal cells is that bacterial cells have:
a plasma membrane made of phospholipids
ribosomes, which are involved in protein synthesis
a cell wall made up of peptidoglycan
a nuclear membrane, which contains chromosomes
a large vacuole, which contains fluids
18.) Vesicles found within a cell that serve to break down cellular debris:
smooth ER
lysosome
Cell wall
microtubule
nucleolus
19.) A semi-rigid structure that lends support to a cell
smooth ER
lysosome
Cell wall
microtubule
nucleolus
20.) Rigid structure not found in animal cells
smooth ER
lysosome
cell wall
microtubule
nucleolus
21.) Site at which rRNA are formed.
smooth ER
lysosome
Cell wall
microtubule
nucleolus
22.) When electrons are passed along the electron transport chain during noncylic photophosphorylation, in photosystem I, this results in the production of )
NADPH
ATP
cytochromes
water
glucose
23.) Which of the following processes requires sunlight, ADP, and water?
Photosystem I
Photosystem II
glycolysis
Calvin cycle
Electron transport system
24.) During lactic acid fermentation, which of the following events is least likely to occur?
An oxygen debt builds
NADH is reduced
Lactate accumulates in the muscle tissue
Production of ATP
NAD+ is recycled and returns to the Krebs cycle
25.) All of the following stages are considered aerobic processes EXCEPT:
the Krebs cycle
formation of acetyl CoA
glycolysis
electron transport chain
oxidative phosphorylation
 
This forum isn't really a suitable one for multiple choice questions. we are happy to help, but with m.c. there is no way to help without just telling you the answers, and that's not the point - if we do you will not learn (plus of course, you will be cheating by passing off as your own work which you did not do).
 
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