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DochEvi [55]
3 years ago
14

Which of these is NOT true of cells?

Biology
1 answer:
matrenka [14]3 years ago
3 0
1. They are much like empty atoms
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When women experience cravings for different foods, it means that they experiencing a hormone related change which severely effects their sense of taste and other senses that can cause these kinds of cravings.
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8 0
3 years ago
Which statement about the light-independent reactions in photosynthesis is true?.
rjkz [21]

Answer:

The correct answer would be They comprise the Calvin cycle.

Calvin cycle refers to the set of chemical reactions taking place in the stroma of the chloroplast in which carbon is fixed into food (glucose). The whole process is divided into three stages namely: fixation, reduction, and regeneration (ribulose bisphosphate or RuBP).

It takes place in light-independent reaction of the the photosynthesis.

It does not require light energy to carry out the reactions however, it depends upon the products of light reaction (ATP and NADPH).

Fixation of one molecule of glucose requires 6 molecules of carbon dioxide, 9 ATP and 6 NADPH.

The fixation of carbon is catalyzed by an enzyme RuBisCO.

3 0
3 years ago
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1. All ____________ organisms are composed of ______ or _______ cells.
Diano4ka-milaya [45]
Living one, or more.
8 0
2 years ago
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called CF is a condition that causes excess mucus production in the lungs and if untreated causes early death. CF is caused by a
lana66690 [7]

Answer:

The correct answer is - by absorbing too much sodium and water into the cells in the respiratory system.

Explanation:

Cystic fibrosis or CF is a genetic disorder that is caused by the presence of two defective genes that leads to the production of thick and sticky mucus in an individual that affects the respiratory and digestive system by clogging mucus in it.

Due to defective genes, there is an abnormal electrolyte transport system develops in which cells of the respiratory system including the lungs absorb an excessive amount of salt (sodium) and water. It all caused by deletion of the three letters which means an amino acid from a gene that leads to the disruption of the protein that controls the production of the mucus and abnormal electrolyte transport.

4 0
3 years ago
A. At what time of day does photosynthesis take place?
Ksenya-84 [330]

Answer:

Naturally: only during daylight hours

Artificially: all 24 hours (under perfect circumstances)

Explanation:

Photosynthesis can only occur when a plant receives energy from a light source. Naturally, the light source would be the sun which is only around for a certain amount of hours. If the plant is under an artificial light source, like a lamp, then photosynthesis can occur at all hours of the day.

3 0
3 years ago
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