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ZanzabumX [31]
3 years ago
11

Why do cells need to do photosynthesis?

Biology
2 answers:
bija089 [108]3 years ago
6 0

Answer: Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. Without photosynthesis, the carbon cycle could not occur, oxygen-requiring life would not survive and plants would die.

Explanation:

Xelga [282]3 years ago
5 0
Cells preform photosynthesis as a form of energy, just as we eat food.
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Plants and animals that live in estuaries face a dilemma in maintaining water balance inside their cells. During high tide they
mote1985 [20]

Answer:

The correct answer is - a hypotonic solution as it can pass the cell wall and cell membrane into the cell.

Explanation:

The plant cell has a rigid cell wall that provides support to the plant cell that is not the case in the animals as they lack the cell wall. The low tidewater is an example of the hypotonic solution as it has fewer solutes than the plant cells or animal cells.

When a plant cell is in freshwater it takes up the water with the help of osmosis and begins to swell but the cell wall does not let it burst and become turgid.

Thus, the correct answer is - a hypotonic solution as it can pass the cell wall and cell membrane into the cell.

5 0
3 years ago
What kind of channels are located in the input region?
tamaranim1 [39]

Answer:

The correct answer is option B ( ligand gated channels opened by neurotransmitter molecules).

Explanation:

Input region or postsynaptic region or dendrite is the site of neuron cell which receives the impulse from the pre-synaptic neuron at the synaptic junction.

The cell membrane of the dendrite is embedded with ligand-gated channels which opens up in response to the ligand (neurotransmitters) produced by the neurotransmitter vesicle of axon or output region of neuron.

The neuromuscular junction is such a case where acetylcholine receptors present in the dendrite opens in the presence of acetylcholine.

Thus, option B ( ligand-gated channels opened by neurotransmitter molecules) is the correct option.

8 0
3 years ago
A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the gametes produced in the population con
IceJOKER [234]

Answer:

Option C

Explanation:

Given ,

A1 allele is carried by 70 % people

Let us assume A1 s dominant genotype

This means p= \frac{70}{100} = 0.7

Thus, frequency of allele in the given population is 0.7

It is also given that the population is in Hardy-Weinberg equilibrium thus

p+q=1\\0.7+q=1\\q = 1-0.7\\q= 0.3

Frequency of fruit fly with genotype A2A2 will be

q^2\\= (0.3)^2\\= 0.09

As per Hardy-Weinberg's second equation of equilibrium

p^{2} + q^{2} + 2pq = 1\\0.49+0.09+2pq = 1\\2pq = 1-0.49-0.09\\2pq= 0.42

Hence, option C is correct

7 0
3 years ago
What are the inputs and outputs of celluar respiration?
melomori [17]

Answer:

The inputs are oxygen and glucose

and outputs are carbon dioxide and water and ATP

8 0
3 years ago
Read 2 more answers
A news report shows a city right after
nydimaria [60]

Answer:

yes

Explanation:

because earthquakes can start fires when gas lines are dislodged due to the earth's shaking.

7 0
2 years ago
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