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2 years ago

To find out if light is necessary for photosynthesis

Biology

2 answers:

TEA [102]2 years ago

7 0

Answer:yes

Explanation:

Starch is present in the exposed leaf. Conclusion- Leaf exposed to sunlight give iodine test, proving that sunlight is necessary for photosynthesis.

Stolb23 [73]2 years ago

4 0

Answer:

yes

Explanation:

light is main source of energy for photosynthesis to take place

if you recall photosynthesis cannot take place without light

even in dark reaction , light reaction has to produce ATP and reduced NADH which dark reaction will use .

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The large surface area in the gut directly facilitates _____.

Flura [38]

Answer:

B. Absorption

Explanation:

Absorption is a process that takes place in the small intestines or ileum of the GI tract, in which simple and soluble nutrients are absorbed into the blood stream.
Absorption is enhanced by several adaptations of the gut such as large surface area of the gut which directly facilitates absorption of nutrients.
Presence of villi and microvilli in the gut increases the surface area for absorption of nutrients in the ileum.

6 0

3 years ago

3. Which of the following is NOT a result of affluence that is harmful to the environment?

viktelen [127]

Answer: B
Hope this helps!!

8 0

3 years ago

Which step can occur even more rapidly by PCR?a. target DNA removed from cells and isolated b. cloning host treated with calcium

lisabon 2012 [21]

Answer:

E. Gene is amplified by multiplication of cloning host

Explanation:

PCR is a very powerful technique that can help us to amplify exponentially one gene from a very small sample of DNA.

As seen in the attached image, the process begins with a single DNA molecule, for the first cycle, that DNA molecule denaturalizes into two strands, the primers bind to their complementary sides and then the DNA polymerase builds the new DNA strands. The number of copies of the gene that can be obtained with each cycle are 2ⁿ copies, where n is the cycle number.

7 0

3 years ago

dsp73

Answer: they are specific in action

Explanation: The similarity between cell receptors and antibodies is that both are specific in action. They bind to their specific targets.

These targets can be determined by the shape of the receptor or the antibody. shape of a protein has a profound effect on its functions

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3 years ago

which scientist theory did redi and pasteur's experiments refute? a.the theory of evolution b.the theory of spontaneous generati

Neporo4naja [7]

I believe it was the Cell theory. :)

3 0

3 years ago

To find out if light is necessary for photosynthesis​

To find out if light is necessary for photosynthesis