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NARA [144]
1 year ago
14

Which table correctly identifies the four most abundant elements in biomolecules

Biology
1 answer:
juin [17]1 year ago
5 0

Answer:

are hydrogen, oxygen, nitrogen, and carbon,

Explanation:

which together make up over 99% of the mass of most cells. They are the lightest elements capable of forming one, two, three, and four bonds, respectively

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A protein that is destined to be secreted from the cell has a signal sequence that targets it to the plasma membrane
emmasim [6.3K]

Answer:

A protein that is destined to be secreted from the cell:

- is targeted to the RER as a soluble protein.

Explanation:

The main function of the RER is the synthesis and transport of secretion or membrane proteins.

If you are looking for the RER you could fount it on eukaryotic cells, side by side of the nucleus, and cover in ribosomes.

7 0
1 year ago
Which is a density-independent factor for a flock of Canada geese on a large lake?
pochemuha

<u>Unusually cold winter</u> is a density-independent factor for a flock of Canada geese on a large lake.

Density independent factors mean that those factors/variables affect the density of the population. However, the density of the population, on the other hand, does NOT affect the variable.

Explanation:

The other factors are density-dependent except unusually cold winter. The cold is not affected by the population density of the Canadian geese. However, an increase in cold causes the population density to decrease because some individuals in the population will be unable to cope with the cold. Only individuals with traits favorable in the bitter cold survive.

Learn More:

For more on dependent and independent variables check out;

brainly.com/question/3205171

brainly.com/question/4600039

brainly.com/question/4600039

brainly.com/question/11448613

#LearnWithBrainly

6 0
1 year ago
11) In C3 photosynthesis, the reactions that require ATP take place in A) the light reactions alone. B) the Calvin cycle alone.
valentinak56 [21]

Answer:

In C3 photosynthesis, the reactions that require ATP take place in

B) the Calvin cycle alone.

Explanation:

In C3 PLANTS PHOTOSYNTHESIS OCCUR IN TWO STEPS-

1. LIGHT stage , WHICH TAKES PLACE IN LIGHT. In this stage water is split and ATP is released.

2. DARK stage, which takes place in dark. This the stage where calvin cycle takes place which require ATP, i.e energy. In this process sugar is produced with help of carbon dioxide. In this carbon dioxide is accepted by 5- carbon molecule ribulose-1, 5-biphosphate, which result into two molecules of 3- phosphoglycerate. this three carbon compound. hence is called as C3 pathway. hence C3 plants.

5 0
1 year ago
Describe how temperatures above 35 C most likely affect the structure and function of the starch synthase in the particular stra
arlik [135]

Answer:

- It is very likely that temperatures above 35°C will change the structural configuration of the enzyme, denaturing it and preventing it from performing its function.

- According to the information, the most probable consequences for this rice crop is that its starch content will be lower, compared to crops grown at optimal temperatures.

Explanation:

<u>The full question includes this statement</u>:

<em>A rice grain is a fruit that encloses a seed. Most of the dry mass of a rice grain is starch. In rice plants,  starch is produced by hydrolyzing sucrose and then linking the released glucose molecules together into  starch . The optimal temperature range for starch synthase activity in a particular strain of rice  is 27°C - 30°C. The optimal temperature range for sucrose synthase in the strain is 30°C - 35°C.</em>

One of the factors affecting enzyme activity is temperature, according to which an enzyme can make a reaction faster, slower or inhibit the activity of that enzyme.

For a grain of rice to acquire its starch content, the activity of two enzymes is required, sucrose synthase - to obtain glucose from sucrose - and starch synthase, to polymerize glucose into starch (see image).

<h3>In this case, how temperatures above 35°C most likely affect the structure and function of the starch synthase?</h3>

The temperature of 35°C is far above the optimum temperature required for the enzyme to act, so it is possible that a change in the structure of the enzyme will occur or that it will be denatured, preventing the starch synthase from performing its function. One consequence of this is a lower starch synthesis.

<h3>When the average temperature in the growing season is 33°C, what can be predicted about the consequences on the starch content in mature rice grains?</h3>

A temperature of 33°C is outside the range of starch synthase activity -even though it is optimal for sucrose synthase- which would decrease starch synthesis and, because of this, the rice grains in this crop would have less starch content.

Learn more:

Relationship between the reaction of velocity of an enzyme and temperature brainly.com/question/14198802

6 0
1 year ago
The study of which structure was instrumental in the formulation of the modern cell theory? plant cell animal cell cell membrane
podryga [215]

Answer;

-DNA molecule

Explanation;

-According to cell theory; All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms.

-The modern version of the Cell Theory includes the ideas that:

  • Energy flow occurs within cells.
  • Heredity information (DNA) is passed on from cell to cell.
  • All cells have the same basic chemical composition.

-Therefore the study of DNA molecule was instrumental in the formulation of the modern cell theory.

7 0
1 year ago
Read 2 more answers
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