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Pie
3 years ago
15

Why is the cell membrane so important?

Biology
1 answer:
Nady [450]3 years ago
3 0

C, because it protects the cell from the outside environment

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The Dead Sea between Jordan and Israel exists _____
Varvara68 [4.7K]

Answer:

Along a divergent plate boundary. I think that's the answer.

6 0
3 years ago
If the extracellular fluid has an excess of sodium ions, a. sodium ions move into cells b. intracellular fluid moves to the outs
Mandarinka [93]

Answer:

b. intracellular fluid moves to the outside of cells

Explanation:

The presence of an excess of sodium ions in the extracellular fluid would make it hypertonic with respect to the intracellular fluid. The concentration gradient would drive the intracellular fluid towards the outside of the cell to balance the concentration of the fluids on either side. The passive movement of fluids occurs across the cells and is driven by the concentration gradient only. The biological membranes are permeable for fluid movement such as the movement of water across it.

6 0
3 years ago
Mendel did experiments in which he kept track of the inheritance of seed texture (wrinkled or smooth). First he created true-bre
sveticcg [70]

Answer:

smooth was dominant over that for wrinkled

Explanation:

In complete dominance, a gene may have two different variants or 'alleles', dominant and recessive. A dominant allele is a gene variant that is able to produce a certain phenotype, even in the presence of other alleles, while a recessive allele is a gene variant that is masked by the dominant allele in heterozygous individuals (i.e., individuals that inherited different alleles from each parent). By crossing smooth and wrinkled pea plants, Mendel observed the offspring (F1) were smooth rather than mixed, indicating one type of seed texture was dominant over the other. Subsequently, Mendel observed that alleles for different traits (e.g., seed texture and seed color) assorted independently during meiosis.

8 0
3 years ago
Using the table on the right as a guide, answer the following questions about light-independent reactions.
Eddi Din [679]

The products of light-independent reactions include the following:

  • Glucose
  • NADP+
  • Water (H₂O).

<h3>What is photosynthesis?</h3>

Photosynthesis can be defined as a biological and chemical process through which living organisms such as green plants (autotrophs) convert light energy (sunlight) received from the Sun into chemical energy, in order to enable them make their food.

<h3>The stages of photosynthesis.</h3>

In Science, there are (2) main reactions that make up the process of photosynthesis and these include following:

  1. Light-dependent reactions.
  2. Light-independent reactions.

<h3>What are light independent reactions?</h3>

Light independent reactions can be defined as a type of photosynthetic reaction that occurs in the stroma of the chloroplasts and it requires the following necessary inputs:

  • Carbon dioxide
  • Adenosine triphosphate (ATP)
  • NADPH

Additionally, NADPH, adenosine triphosphate (ATP), and oxygen are the outputs (end products) of photosynthesis.

In this context, we can reasonably infer and logically deduce that glucose, water (H₂O), and NADP+ constitute the products of every light independent reactions.

Read more on light-independent reactions here: brainly.com/question/2248882

#SPJ1

7 0
1 year ago
What are the three functions of a cell membrane? I will give Brainliest to the best answer!
____ [38]
(1) they keep toxic substances out of the cell;
(2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles and between the cell and the outside environment;
(3) they separate vital but incompatible metabolic processes conducted within organelles.
3 0
3 years ago
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