Answer: 2
Explanation:
A group of students wants to study the rate of photosynthesis under various conditions. They use a blender to mechanically disrupt the thylakoid membranes of chloroplasts from an algae sample The liquid
mixture is added to test-tubes, and 5 drops of DPIP solution is added to each tube. One set of tubes is placed in direct sunlight, another is placed in indirect sunlight, and a third is placed under an infrared heat
lamp. One test-tube contains only water and 5 drops of DPIP (control). The students check the color of the liquid in the tubes every 15 minutes for a period of 1 hour. They record their observations in a table
Table of Observations
Time (min) Direct Sunlight
Indirect Sunlight
0
Dark Blue
Dark Blue
15
Lighter
Slightly Lighter
30
Lighter
Lighter
45
Nearly colorless
Lighter
60
Clear colorless
Nearly colorless
Which of the statements is the BEST explanation for their results?
Infrared Lamp
Dark Blue
No Change
Slightly Lighter
Slightly Lighter
Slightly Lighter
Control
Dark Blue
Dark Blue
Dark Blue
Dark Blue
Dark Blue
А
The rate of photosynthesis under indirect sunlight is slower than in infrared light
B
The rate of photosynthesis is greatest for direct sunlight and least for the infrared light.
С
The rate of photosynthesis cannot be determined because the infrared lamp degraded the DPIP
D
The rate of photosynthesis cannot be determined because exposure to direct sunlight degraded the DPIP
Answer:
B
Explanation:
The statement that best explains the result would be that the rate of photosynthesis is greatest for direct sunlight and least for the infrared light.
The DPIP will normally replace and play the role of NADPH in the light reaction of the process of photosynthesis. Hence, it will become colorless as a result of reduction and the rate of photosynthesis can be monitored based on the magnitude of the disappearance of the dark blue color.
It means that the more colorless the liquid in the illustration is, the more the rate of photosynthesis. The color change moved from dark blue to clear colorless under direct sunlight, from dark blue to nearly colorless under indirect sunlight, and from dark blue to slightly lighter under the infrared light. This clearly indicates that the rate of photosynthesis is highest under direct sunlight and lowest under infrared light with the indirect sunlight having an intermediate rate.
The correct option is B.
a book setting on a shelf two meters from the floor has more kinetic energy than a book sitting on a shelf one meter from the floor true or false
True
Explanation:
Its true because the book closer to the ground requires less energy to keep it pulled towards the earth, since its closer
What are the overall products of photosynthesis?
Your answer:
A. light, carbon dioxide, water
B. oxygen, glucose
C. ATP, NADPH, Oxygen
D. Glucose, ATP, Carbon Dioxide
Answer:
B. Glucose and oxygen O2
label the parts of the flower in the given diagram
Answer:
Sepal: The outer parts of the flower (often green and leaf-like) that enclose a developing bud. Petal: The parts of a flower that are often conspicuously colored. Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther. ... Stigma: The part of the pistil where pollen germinates.
Explanation:
A chloroplast has stopped producing ATP and NADPH. Which of the following is most likely causing this?
Answer:
Krebs cycle
Explanation:
Krebs cycle is the second phase of cellular respiration, it occurs in the mitochondrial matrix and generates a pool of chemical energy (ATP, NADH, and FADH2) from the oxidation of pyruvate, the end product of glycolysis. Pyruvate is transported into the mitochondria and loses carbon dioxide to form acetyl-CoA, a 2-carbon molecule.
What type of boundary is at letter C?
O Divergent
O Convergent
O Transform
Birds are introduced to an environment, and they prey on light-colored spiders. Over generations, more dark-colored spiders are observed in the population. What process is most likely occurring?
Answer:
Birds are introduced to an environment through evolution and can prey on light-colored spiders to survive. Over generations they can be observed in the population during the process of a food chain. Furthermore, the process can be through biology and chemistry. The one at the top of the food chain (birds) can eat the ones at the bottom of the food chain (light-colored spiders).
Explanation:
The process that is occurring is called NATURAL SELECTION.
Natural selection is the main evolutionary force acting on natural populations.Natural selection refers to the differential survival and reproduction of organisms depending on the environment in which these organisms live.In this case, dark-colored spiders are better adapted and therefore they will have more chances to survive and reproduce.In conclusion, the process that is occurring is called NATURAL SELECTION.
Learn more in:
https://brainly.com/question/2725702
Which food has the most protein?
A. beef
B. carrots
C. celery
D. mushrooms
E spinach
F.Peanuts
Answer:
A:beef
Explanation:
its meat
anybody good with aquaculture work
Answer:
no
Explanation:
anybody good with aquaculture work
According to Darwin’s theory of evolution, how are the finches that live on the Galapagos Islands similar to members of a family tree?
All of the finches share similar traits.
All of the finches share common ancestors.
All of the finches are able to reproduce.
All of the finches are adapted to survive the same conditions.
Answer: All of the finches share common ancestors
Explanation:
Answer:
The answer is All of the finches share common ancestors or B.
Explanation:
I took the quiz and got 100%
I hope this helps and can I please have brainliest?
Which of the following statements correctly describe(s) the relationships shown on the graph? Statement 1: At high light intensity an increase in carbon dioxide concentration from zero to low causes an increase in the rate of photosynthesis. Statement 2: At high light intensity an increase in carbon dioxide concentration from high to very high does not increase the rate of photosynthesis. Statement 3: At low carbon dioxide concentration an increase in light intensity from low to high does not change the rate of photosynthesis.
Answer:
statement one
Explanation:
because increase in light intensity is increasing the rate of photosynthesis
When an organism is exposed to a limited quantity of oxygen, the cell's mitochondria will stop cellular respiration involving the Krebs cycle and enter the process of fermentation to survive. What conclusion can be drawn regarding an organism's ability to undergo fermentation?
Answer: Fermentation must create a net gain of ATP.
Explanation: Fermentation is a process in which organisms such as yeast, bacteria convert sugar into an alcohol or an acid. It is an anaerobic process because it does not require oxygen. The fermentation process is completed in the cytoplasm with a net gain of 2ATP during the glycolysis. Although it is a common pathway it is not the only method used by organisms produce ATP anaerobically.
how is photosynthesis and cellular respiration cyclical
Answer:
Explanation:Photosynthesis and aerobic respiration are both part of a cyclic process of biochemical reactions. ... Photosynthesis requires the products of aerobic respiration (carbon dioxide and water), while aerobic respiration requires the products of photosynthesis (glucose and oxygen).
Which property of water can dissolve sugar and salt but not oil
A.PH
B.polarity
C.adhesion
D.cohesion
Restate your position on the lines below in your own words. Do you support or oppose the elimination of lactose from the human diet
Which of the following BEST defines a right?
A.
something that is owed to anyone through just claim or legal guarantee
B.
a benefit that is earned that allows someone to do something
C.
something that is denied to every citizen
D.
a benefit that is denied to those who do not obey the law
Please select the best answer from the choices provided
A
B
C
D
Answer:
The answer I B thank
Explanation:
Answer: A
Explanation:
Which word identifies the hanging icicle-shaped fornations in caves that are created by deposition?
Answer:
Stalactites refers to the pointed icicle or rock that hangs down from the roof of a cave and that is caused by deposition or pouring water that contains minerals or ice particles. The opposite of stalactites can be found under them and is known as Stalagmites.
Explanation:
Answer:
It’s C, stalactites
Explanation:
I took the test I passed with a 100%
(I’ll give Give Brainliest)
Answer:
9.5 centimeters which equals 0.095 meters
Explanation:
i think i started from the longest leg/wing... hope this helps...
Answer: 9.5 centimeters which equals 0.095 meters
Explanation:
It took me a bit of time but yeah,I did it.
Tell me if it’s wrong)
6. Challenge: Based on the weathering patterns, guess the rock type shown in each photo. (Can anyone confirm or deny these answers?)
Answer:
A. = Shale
B = Granite
C = Sandstone
D = Limestone
Explanation:
Based on the weathering patterns, the rock type shown in each photo can be concluded to be as
A. = Shale: this is a form.of sedimentary rocks. It is formed from finely textured materials. Such as clay, quartz, and calcite minerals
B = Granite: this is derived from igneous rock. It has coarse texture features.
C = Sandstone: it is formed by a sand-sized grain of natural earth materials that form together
D = Limestone: it is also a form of sedimentary rock. It contains a large quantity of calcium carbonate it is formed from materials such as ancient corals and skeleton.
Weathering is the process of removal and breaking down of the rocks into soils and minerals and is four types such as physical, chemical, and biological. The weather is both an internal and external process.
Based on the images given, A represents shale, B is granite C is sandstone and D is limestone. The shale is a fine-grained clastic sedimentary rock and is ford by mud. Granite is a coarse-grained intrusive igneous rock. Sandstone is made from sand-sized silicate grains. While limestone is made from calcium calcite that is carbonate sedimentary rock. Hence confirmed.Learn more about the weathering patterns, guess the rock type.
brainly.com/question/19662614.
type of cell division in skin cells
Answer:
put me as brinliest
mitosis
Explanation:
fkdyflydhfygugugjfushsdfgiggigifir
2. A large parking lot is abandoned by humans. Over time, it will most likely (1) remain bare, paved-land indefinitely (2) develop into a desert area (3) develop into a type of forest of only one type of tree after hundreds of years (4) recover through gradual changes back to a point of long-term stability.
Answer: Over time, it will most likely remain bare, paved-land indefinitely
Explanation: it will remain bare because no one is going to be there to take care of it
Answer:
4
Explanation:
ecological succession is the growth and change over a period of time that will happen in the parking lot if left abandoned.
How might human activities have caused the evolution of a species?
pls hurry
Answer:
by monkeys exploring the way of earth into humans then are tails came off because it was useless
Explanation:
What is meant by trophic levels?
Explanation:
Trophic levels is known as feeding levels in an ecosystem.
Trophic levels is any of the stages involved in the food chain. In an ecosystem, the trophic levels begins with the producer which provides foods from inorganic sources.
Consumers at all levels feeds on the food produced by the producers. Some consumers feeds on other consumers.Answer:
Position it holds in a food chain
Explanation:
Hope this helps
Could somebody help me with this bio question?? Im told biology is really easy but I just don't get it. THANK YOU!!!!! Also if anybody could also tell me the Phenotype ratio I will give brainliest!!!
Answer:
50/50
Explanation:
Tt 50%
mett 50 Havent taken bio in like 2 years but i was top of my class and honestly dont remember if this is right lol sorry!
Answer:
It's 50/50
Explanation:
Stem cells are important because _____.
they can differentiate into almost any other type of cell
what is the greatest saeamoid in animals
Answer: In the knee—the patella (within the quadriceps tendon). This is the largest sesamoid bone. In the hand—two sesamoid bones are commonly found in the distal portions of the first metacarpal bone (within the tendons of adductor pollicis and flexor pollicis brevis).
Explanation:yw
What does the term "complementary" mean in base-pairing?
Answer:
From The School of Biomedical Sciences Wiki. Complementary base pairing is the phenomenon where in DNA guanine always hydrogen bonds to cytosine and adenine always binds to thymine. The bond between guanine and cytosine shares three hydrogen bonds compared to the A-T bond which always shares two hydrogen bonds.
Answer:
The term complementary means "matching" in base-pairing
Explanation:
What I mean by this is that each base has its complementary (matching) base.
For example, cytosine goes with guanine so the complementary base of cytosine would be guanine.
The complementary base of thymine would be adenine
The photo was taken outside Los Angeles, California.
Which agent of erosion most likely caused the rocks to end up on the road?
O A. Gravity
B. Wind
C. Ice
D. Animals
Answer:
Gravity
Explanation:
got it right
Answer:
gravity
Explanation:
a.p.e.x 5.4.2
What type of chemical bond is found between the
phosphate group, sugar group, and base of a
nucleotide?
Answer:
Explanation: The sugar and phosphate group make up the backbone of the DNA double helix, while the bases are located in the middle. A chemical bond between the phosphate group of one nucleotide and the sugar of a neighboring nucleotide holds the backbone together.
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