1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
motikmotik
3 years ago
8

A controlled experiment was conducted to analyze the effects of darkness and boiling on the photosynthetic rate of incubated chl

oroplast suspensions. The dye reduction technique was used. Each chloroplast suspension was mixed with DPIP, an electron acceptor that changes from blue to clear when it is reduced. Each sample was placed individually in a spectrophotometer and the percent transmittance was recorded. The three samples used were prepared as follows.
Sample 1 – chloroplast suspension + DPIP
Sample 2 – chloroplast suspension surrounded by foil wrap to provide a dark environment + DPIP
Sample 3 – chloroplast suspension that has been boiled + DPIP
On the axes provided, construct and label a graph showing the results for the three samples.
Biology
1 answer:
Bond [772]3 years ago
7 0

Answer:

where's your data? tho, i think we're answering the samee thingggg. here's mineee

You might be interested in
Help me in 5 minutes or less​
MArishka [77]

Cytosine pairs with Guanine

Adenine and Thymine are pairs also

Hope this helps :)

8 0
3 years ago
Checkpoints are points between phases of the cell cycle at which a cell determines whether all the requirements necessary for ea
Sedaia [141]

Answer:

The correct answer is - at the G1/S phase and G2/M phase.

Explanation:

The G1/S transition phase or checkpoint is a phase where the cell cycle arrested if during the evaluation of the DNA found damaged or other factors including external factors. Due to this evaluation and inadequate conditions, the cell will not enter the S phase.

The G2/M phase or transition phase is a checkpoint which takes place just before the M phase that ensures that all replicated DNA is not damaged before entering mitosis phase or M phase.

Thus, the correct answer is - at the G1/S phase and G2/M phase.

5 0
3 years ago
In response to high amounts of phosphate transport into the cell: a. PhoR is phosphorylated by the phosphate transporter protein
storchak [24]

Answer:

e. PhoU keeps PhoR bound to the phosphate transporter protein Pst

Explanation:

PhoU is a membrane protein known to regulate the transport of phosphate (Pi) between cellular compartments. It has been discovered that mutations in this protein cause lethality because the cell becomes incapable of controlling the intracellular levels of  Pi, this being toxic for the cell. PhoR is a histidine kinase/phosphatase. When the Pi level is considered to be a limiting factor, PhoR autophosphorylates at a histidine residue and then donates its phosphoryl group to PhoB. On the other hand, when the Pi level is high, this protein removes the phosphoryl group from phospho-PhoB. Finally, the Pst is a signal transduction protein that acts as a transporter capable of switching its conformation during the transport of PI.

5 0
3 years ago
Ecologists in California are concerned about the effects of urbanization and the spread of invasive species on the biodiversity
Nesterboy [21]

Answer:

A,B,C,D

Explanation:

I got 100%

8 0
2 years ago
Read 2 more answers
Which of the statements is not true regarding protists? Some are unicellular. They may have cell walls. They are usually aerobic
Paha777 [63]

Answer: They may be prokaryotic is false.

Explanation:

Protists are eukaryotic organisms i.e they have membrane bound organelles and Nucleus. They are neither plants,animals or fungus. Protists have many form of nutrition and they may be aerobic or anaerobic.

Some protists photosynthesized like algae while others are heterotrophs

They may be unicellular or multicellular.

Some protists have cell walls while others don't.

7 0
3 years ago
Other questions:
  • Based on the soil texture diagram, which percentages of sand, clay, and silt would result in sandy clay?
    13·1 answer
  • Contrast energy transfer with energy transformation.​
    11·1 answer
  • Cyclostomata, like lamprey eels and hagfish, _____.
    5·2 answers
  • What term describes the inheritance of a trait which in the heterozygote has an intermediate expression between either allele?
    7·1 answer
  • The first organism in most natural food chains is
    11·2 answers
  • Discuss corporate culture and the hidden corporate culture and the humanization of the work place.
    14·1 answer
  • Please answer I really need help
    6·1 answer
  • Classify the statements based on whether they describe earthquakes or volcanoes.
    11·2 answers
  • Which statement is true?(1 point) PLS ANSWER
    12·1 answer
  • The green molecules are moving from an area of high concentration to an area of low concentration. When will this movement will
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!