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4 years ago

If the mass of a cucumber changes due to osmosis from 12g to 14g in 5 minutes, what was the rate of osmosis? Show work please.

Biology

1 answer:

Gnoma [55]4 years ago

4 0

Ratio of osmosis is calculated via equation rate = (change in mass)/(time), which means that

Ratio of osmosis in cucumber is: (12-14 g) / 5 min (300 s)= -0.006 g/s

Percentage change in mass would be= (14 – 12) ÷ 12 × 100 = 2 ÷ 12 × 100 = +17%

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Given the following cross TtYyRr x TtyyRr (T = tall; t = short Y = yellow; y = green R = round; r = wrinkled), what proportion o

mihalych1998 [28]

Answer:

3/32 ttyyR-

Explanation:

Cross: Tall, Yellow, Rounded individuals with a tall, green, rounded individual

Parentals) TtYyRr x TtyyRr

Gametes) TYR, TyR, TYr, Tyr, tYR, tyR, tYr, tyr (Parent one)

TyR, TyR, Tyr, Tyr, tyR, tyR, tyr, tyr (Parent two)

We need to know what proportion of offspring is expected to be short plants with round, green seeds. So we need to identify the gametes for these traits. The genotypes are:

Shot → tt
Round → RR or Rr
Green → yy

⇒ Parent one can provide gametes tyR and tyr

⇒ Parent two can provide gametes tyR and tyr

(1/8 tyR x 2/8 tyR) + (1/8 tyR x 2/8 tyr) + (1/8 tyr x 2/8 tyR) =

2/64 ttyyRR + 2/64 ttyyRr + 2/64 ttyyRr =

1/32 ttyyRR + 2/32 ttyyRr =

3/32 ttyyR-

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3 years ago

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Answer:

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3 years ago

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3 years ago

A single unit of glucose found in the cell is called a polymer. is it true or false

777dan777 [17]

Answer:

true

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3 years ago

Alex listed the typical steps of fossil formation. 1) An organism dies. 2) The remains fall to the bottom of the ocean. 3) The s

Anna35 [415]

Answer:

The answer is: After step 3, layers of sediment cover the dead organism.

Explanation:

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Process of Fossilization:

Permineralization is one of the most common types of fossilization. It involves the absorption of minerals into the remains, giving a detailed impression of the dead organism.

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3 years ago

Read 2 more answers