BIOLOGY HIGH SCHOOL

During reduction, 3-PGA reacts with ATP and NADPH. What does ATP contribute to the reaction?A. carbon
B. hydrogen ions
C. electrons
D. phosphate group

Answers

Answer 1
Answer: D. phosphate group

ATP usually releases energy by breaking down the weak phosphate cell present.  The energy released due to the breaking down of the phosphate cell is then utilized. The ATP is converted to ADP. Whenever a cell feels the necessity for energy it releases a phosphate to gather the energy. It is an automatic and ongoing process. The weak bond between the second and the third phosphate is always targeted for turning ATP to ADP. This is the reason ATP is considered the main energy currency for the cell.
Answer 2
Answer:

Answer:

D. Phosphate group

Explanation:

I got it correct on edge thanks to the person above me :)

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Blood that leaves the heart for the body passes through a large blood vessel called thea. pulmonary vein.
b. pulmonary artery.
c. aorta.
d. vena cava.

Answers

If i'm not mistaken, it's the aorta

What is the significance of flatworms being flat?

Answers

Flatworms (Platyhelminthes) are phylum of unsegmented, soft, flat invertebrates. 

Flatworms have no body cavity which is why they are flat. The advantage of a flat body is facilitated respiration and circulation. Flatworms do not have respiration and circulation system. But, oxygen diffuses across the skin and reach all parts of the body thanks to a flattened shape. Also, it is easy to hide from predators because they can get almost everywhere thanks to the body shape.

Hemophilia is a condition in which blood does not clot naturally, and a person with hemophilia could bleed to death if injured. A hemophiliac must receive regular injections of what blood part to stay alive?

Answers

As we know our blood has four main components which are plasma, red blood cells, white blood cells and platelets. That is why a hemophiliac must receive regular injections of platelets to stay alive. This is done by injecting into their bloodstream human plasma which contains many proteins, glucose, clotting factors, electrolytes, hormones, and carbon dioxide.


I hope it helps, Regards.
A Hemophiliac must receive regular injections of blood platelets to stay alive. It is a fact that our blood has four different constituents and they are red blood cells, plasma, white blood cells and platelets. Human plasma is injected into the blood streams and this plasma that contains clotting factor, various proteins, glucose, hormones, electrolytes etc.

How did the nomadic lifestyle contribute to the spread of Islam

Answers

It kept people moving, enabling them to share their personal belief systems.

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Answer:

c

Explanation:

Sean wants to know whether monarch butterflies prefer to feed from flowers of a certain color. Sean placed different colored lantana flower plants in separate 1-L terra cotta flower pots. He has a white lantana, purple lantana, orange lantana, yellow lantana, and red lantana. Sean set the pots on his back porch. He then observed the pots for four days and recorded how many visits each of the flower plants received from a monarch butterfly. What is the variable in Sean's experiment?

Answers

The colour of the flowers is the variable in the above-mentioned experiment.

What is entomophily?

It is a method of performing cross-pollination where the transfer of the pollen grains from the anther of one flower of a plant to the stigma of another flower of a plant happens by the insects.

It is often called insect pollination. The flowers that are pollinated by insects have attractive petals of bright colours. This adaptation ensures that the insects will be attracted to the flowers.

The nectar present in these flowers, on which the insects feed is also sweet with an attractive scent. This is another factor which attracts the insects to the flowers.

It is by way of sucking the nectar that the insects also get pollen stuck on their mouth regions and legs. The pollen grains produced by these flowers are also sticky.

Therefore, to examine if monarchbutterflies prefer a specific coloured flower, different plants with different coloured flowers need to be used and the colour of the flowers will be the variable.

Read more about entomophily, here

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the INDEPENDENT VARIABLE is Flower color.
the DEPENDENT VARIABLE is how many visits received
the CONSTANT VARIABLE is the type of butterfly, and amount of butterflies used.

The amount of time it takes for an amount of specific isotope to Decay to half the original amount

Answers

Answer: Half life

Explanation: Half life is the amount of time taken to reduce the original concentration of the reactant to half of its value.

Rate law expression for first order kinetics is given by:

t=(2.303)/(k)\log(a)/(a-x)

where,

t= time taken for the decay

k = rate constant

t = time taken for decay process

a = initial amount of the reactant

a - x = amount left after decay process

for half life: t=t_(1)/(2)

a-x = (a)/(2)

t_(1)/(2)=(2.303)/(k)\log(a)/(a/2)

t_(1)/(2)=(0.693)/(k)
It is called Half life, to find one the formula is A=Ao(0.5)^(T/H)
A=amount 
AO=Initial Amount 
T=Time
H=Half life  
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