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mina [271]
3 years ago
9

Is this statement true or false? The period before we have written records is called prehistory. true o false​

Biology
2 answers:
omeli [17]3 years ago
7 0

Answer:

true

Explanation:

mixas84 [53]3 years ago
5 0

Answer:true

Explanation:

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How is cellular respiration related to metabolism?.
nekit [7.7K]

Answer:

Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.

Request: Please mark me as the brainliest.

5 0
3 years ago
Phospholipids make up most of the lipid part of the cell membrane. Since water exists on both the outside and inside of a cell,
timurjin [86]

Answer:

Two back-to-back phospholipid layers with the polar heads facing out on both sides

Explanation:

Phospholipids are made up of a head  and two tails. The head can be described as a phosphate molecule that is water loving (hydrophilic) whereas fatty acids make up the two tails. The fatty acids repel water and hence are hydrophobic. The assembling of the phospholipids for the the formation of cell membrane depends on these hydrophilic and hydrophobic properties. The assembling of the phospholipids is in two layers. The phosphate head face outwards on both sides to attract water and the tails tend to hide from the water molecules by being composed in the layers of the head. this assembling is termed as the "self-assembly".

3 0
3 years ago
Identify the following carbohydrate:
tangare [24]

Answer:

polysaccharide

Explanation:

it is the structure of raffinose which is a polysaccharide

7 0
3 years ago
Plants retain their leaves year round.?
grin007 [14]
It all depends on the species, some lose all of their leaves for part of the year while others lose their leaves before the next growing season, retaining some during winter or dry periods.
4 0
3 years ago
Which of the following accurately describes the role of energy in cellular respiration?
zmey [24]

Answer:

The correct answer is option energy is a product.

Explanation:

Cellular respiration is a process in which oxidation of food or glucose takes place to produce energy. This process proceeds in four processes: glycolysis, oxidative carboxylation, Krebs cycle and electron transport chain.

All of this process produces energy in the form of ATP or energy equivalents like NADH and FADH₂.  

1. Glycolysis produces- 2 ATP, 2 NADH,  

2. Oxidative carboxylation produces- 2 NADH,  

3. Krebs cycle produces- 2 ATP, 6 NADH AND 2 FADH₂ and  

4. Electron transport chain produces at last- 24 ATP from these reducing equivalents.

Thus, option energy is a product is a correct option.

3 0
3 years ago
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