Question

27-Diffusion is the movement of solutes in water. Diffusion spontaneously causes net movement of solute from ________ concentration, high energy, conditions into _______ concentration, low energy, conditions.

a. low; low

b. low; high

c. high; high

d. high; low

28-Catabolic pathways lead __________ cellular respiration and anabolic pathways lead _______ the citric acid cycle.

a. away from, toward

b. toward, toward

c. toward, away from

d. away from, away from

33-Cofactors that are required for enzyme function are ____________.

a. proteins

b. inorganic molecules

c. substrates

d. organic molecules

35-Photosynthesis would be impossible for eukaryotes without ____________.

a. secretory vesicles

b. chloroplasts

c. mitochondria

d. nuclei

37-The discovery of non-functional leg bones deep in the body of a whale is evidence that ___________.

a. we don’t understand whale anatomy

b. whales are evolving legs to walk on land

c. whale legs are shrinking from disuse

d. the ancestors of whales had legs and walked on land

41-Which process can produce carbon dioxide?

a. none of these reactions

b. cellular respiration and anaerobic fermentation

c. cellular respiration

d. anaerobic fermentation

e. photosynthesis

49-Which pair is most likely to form ionic bonds?

a. OH-, Cl-

b. Na+, H+

c. OH-, PO4-3

d. Na+, Cl-

54-The ____________produce(s) ______ and ATP.

a. Calvin cycle, water

b. Calvin cycle, NADPH

c. Light reactions, NADPH

d. Light reactions, carbon dioxide

55-What is the primary distinction between interphase and Mitotic phase?

a. Chromosomes are not visible in mitotic.

b. Chromosomes are not visible in interphase.

c. Nuclear envelope unassembled in mitotic cells

d. Mitotic spindle attaches to interphase chromosomes.

58-Who captures the sunlight energy that powers the biosphere?

a. Producers

b. Eukarya

c. Consumers

d. Decomposers

Answer 1

27.

Option d is correct.

Diffusion is movement of molecules from high concentration to low concentration, till equilibrium is reached.. it does not requires ATP.

28. C is correct answer.

33.

b is correct option.

Cofactors are inorganic molecules like iron and zinc.

Coenzymes are organic molecules like vitamins.

35. B is correct

Choloroplasts contain cholorophyll., necessary for photosynthesis.

37,d is correct.

41. B is correct option.

Cellular respiration produces energy, Co2 and H2o

Anarobic fermentation produces ethanol and co2

49. d is correct option.

Nacl common salt is formed when a electron is given by sodium to chlorine. In ionic bond there is complete transfer of electrons  

54.

C is correct option.

ATP and NADPH are the products of light reaction of photosynthesis, which are used during dark reactions to synthesize glucose.

55. b is correct option.

In Interphase, chromosomes are not visible.

58. a. producers.

Sunlight is the ultimate source of energy, which is captured by plants, which powers the biosphere.