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Fiesta28 [93]
3 years ago
14

What part of a plant cell has the function of producing sugar in the presence of sunlight??

Biology
2 answers:
il63 [147K]3 years ago
6 0
It's the <span>chloroplast.

Hope this helps !

Photon</span>
lutik1710 [3]3 years ago
5 0

chloroplast legit right answer

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A researcher is trying to construct a molecular-based phylogeny of the entire animal kingdom. Assuming that none of the followin
faust18 [17]

Answer:

Collagen genes.

Explanation:

Phylogenetics helps to study the evolutionary relationship among the different group of organisms. The different characteristics like DNA sequences, mitochondria sequences can be used for the construction of phylogeny tree.

Collagen genes can be used to study the evolutionary relationship as mammals contains nearly 30% of total protein. The collagen gene shows the most of the conserved sequences among the different group of organisms and shows the most recent evolved characters in vertebrates.

Thus, the correct answer is collagen genes.  

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3 years ago
Compare the physical and chemical properties of a compound to those of the elements of which it is composed.
yuradex [85]

Explanation:

Compounds are those substances that are made up of elements that are combined in a fixed proportion or ratio. The individual property of element is lost once it forms a compound. The physical and chemical properties of both compound and an element is different.

Example of a compound is water and its elements are hydrogen and oxygen. Water is a colorless liquid that acts as a solvent and dissolves most of the solutes in it. While oxygen and hydrogen occurs as gases in their elemental state.

5 0
3 years ago
Read 2 more answers
A — is a protein that recognizes and responds to a signal
Norma-Jean [14]

Answer:

A <u><em>receptor</em></u> is a protein that recognizes and responds to a signal.

Explanation:

A receptor is a protein molecule present on the cells on which the signalling molecules can bind and generate a physiological response. Some receptor molecules can also respond to Sun and light. Each type of cell has specific receptors molecules and hence can respond to specific signals. The receptor molecules hence tend to receive signals for a cell. Molecules such as hormones bind to the receptors.

3 0
3 years ago
Which of the following is a form of active transport? A) Sodium-potassium pump  B) Simple Diffusion  C)Osmosis     AND WHY?
Bingel [31]
I think simple diffusion is a former of active transport
7 0
3 years ago
Assume that you have 1 mL of a solution of amylase (an enzyme) at a concentration of 15 mg protein/mL. Calculate the volume of d
lidiya [134]

Answer:

42,5 mL

Explanation:

We need to use the serial dilution formula beacuse we start with a stock concentrate solution and we need to prepare a new less concentrated one.

DF=\frac{Vi}{Vf}

<u>DF in the dilution factor, Vi is the initial volume and Vf is the final volume.</u>

The first step is to have the same measurment unit so we need to convert 345 µg to mg.

we know that 1 µg equals 0,001 g, hence:

345 µg = 0,345 mg

now the final volume is 0,345 mg  protein/ mL and the inital volume is 15mg protein/mL, both of them are in the same unit so we can use the formula

DF= \frac{15mg protein/mL}{0.345mg protein/mL}

DF= 43,5 mg protein/ mL

Now since the question said that we already have 1.0mL of the amylase stock solution we need to subtract that 1.0mL to the 43,5 mg protein/mL

43,5mL-1,0mL = 42,5 mL

So, we need 42,5 mL of diluting buffer if we want a final concentration of 345 µg protein/mL (0.345 mg protein/mL)

8 0
3 years ago
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