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Sedbober [7]
3 years ago
7

I NEED HELPPPPPPPPP !!!!!!

Biology
2 answers:
agasfer [191]3 years ago
7 0

Answer:

  1. lower energy of reactants
  2. lower energy of products
  3. transition state
  4. higher energy of reactants
  5. higher energy of products

Explanation:

As you may already know, a chemical reaction refers to the "mixing" of some chemical compounds called reagents, which will have the atoms rearranged among themselves, transforming them into other chemical compounds. This rearrangement of atoms is done with energy expenditure that can be perceived by the reactions that happen with temperature changes, light release, among others.

In summary, a chemical reaction occurs when energy is released, at which time the energy levels between reagents and products follow the following order:

  1. lower energy of reactants
  2. lower energy of products
  3. transition state
  4. higher energy of reactants
  5. higher energy of products
lakkis [162]3 years ago
3 0

Answer:

higher energy of reactants

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Answer the following?
exis [7]

Answer: ° Pop Beads represent two pair of homologous sister chromatids.

° In terms of number and kinds of chromosomes, Chromosomes number will be the same, Also Similarity of genetic information will be the same.

°Interphase

Prophase

Metaphase

Anaphase

Telephase

° In terms of number and kinds of chromosomes; resulting cells will resemble only half of the chromosome. Also, there will not be exact correspondence in similarity of genetic information as their parents.

° Haploid Cells (n) are cells that contains a single set of chromosomes e.g sex cells (egg or sperm cell)

Diploid cells (2n) are cells that contains two set of homologous chromosomes. A vivid example of these are the somatic cells.

° Chromosomes are replicated only once in meiosis.

° Chromosomes are pulled to opposite poles in meiosis only twice.

° Crossing Over also known as genetic recombination can be defined as the exchange of genetic materials between two homologous chromosomes non sister chromatids which pair up to form recombinant chromosomes.

Explanation:

Since we have questions with multiple attachments, repetition of words will be avoided and those that need explanation will be our focus.

1° When we hear Pop Beads, it's pertinent to think biologically that Pop Beads are used in tracking chromosomal DNA movements in Cell Division.

Thus, Pop Beads represent extensions of homologous Sister Chromatids

2° Let's recall : that both diploid and haploid cells can undergo mitosis. Mitosis is a division of a cell nucleus in which the genome is copied and separated into two identical halves. Hence, in terms of numbers and kinds of chromosomes; if (for example) a diploid cell undergoes mitosis, the resulting cells will be two identical diploid cells i.e (2n = 2n).

Therefore, chromosomal number and genetic information will be the same.

4° In meiosis, cell division occurs that reduces the chromosomes number by half, giving rise to four haploid cells, each genetically different from their original (parent) cells.

Hence, in terms of numbers and kind of chromosomes, the resulting cells will produce half of the chromosomes. Also, genetic information will differ from their original cells.

6° If we look at what Chromosomal replication is, we'll realize that: it's a biological process of producing two identical replicas of chromosomes from one original chromosomal molecule.

In meiosis, chromosomal replication occur "ONCE" . But there are two rounds of cell division. (Meiosis 1) where exchange of genetic information of takes place and (Mieosis 11) where daughter cells divides and splits up into sister chromatids to form haploid gametes.

7° Like we said earlier, Chromosomes are pulled to opposite poles in meiosis only "TWICE".

The first occurs at (ANAPHASE 1), when a pair of chromosomes are pulled apart by meiotic spindle, which in turns pulls one chromosome to one pole of the cell and the other chromosomes to the opposite pole.

In (meiosis 11), Chromosomes are pulled to opposite poles at (ANAPHASE 11); when daughter cells line up along the equator and centrioles are now at opposite pole creating avenue for meiotic spindle fibre to attach to each sister chromatids at ends of each poles.

4 0
3 years ago
15. Suppose a human blood cell containing a 0.9 percent solute concentration were put into a container of 30 percent solute solu
Vaselesa [24]

Answer:

Smaller

Explanation:

The human blood cell has a smaller percentage of solute concentration than the solution it was placed into. This means that the cell is hypotonic in comparison to the solution, and the solution is hypertonic compared to the cell. When a cell is placed in a hypertonic solution it undergoes crenation, meaning it shrivels up. Water moves from the lower solute concentration to the higher solute concentration. The water inside the cell moves outside to the hypertonic solution. This causes the cell to become smaller.

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3 years ago
Science, Please help! thanks
Sphinxa [80]

Answer:

BB 1

bb 2

SS 1

Bb 3

Ss 3

ss 2

Explanation:

hetero = different

homo = same

recessive small letters

dominant big letters

3 0
3 years ago
Where did the energy to power the light-independent reactions come from?
trapecia [35]

Answer:

oh dum the answer is A

Explanation:

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What are the jobs or the nasal cavity? Select all that apply?
zhannawk [14.2K]

Answer:

The nasal cavity and its mucous have two primary purposes in the process of breathing: Role as a Passage for Inhaled Air: During inhalation, air enters through the nostrils and passes via the nasal cavity into the pharynx and larynx, the next sections in the respiratory tract, to eventually reach the lungs.

Explanation:

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