In mitosis the total number of chromosomes are transferred to the daughter cell, therefore each new horse cell after mitosis will have 60 chromosomes.

The purpose of chloroplast in plant cell is to trap sunlight from the surroundings and use it to convert carbon dioxide and water to glucose and oxygen. Each unit of chloroplast works exactly the same way and this is how a plant manufactures food primarily for itself and secondarily for all other species that depend on it.

Type of cell

What is the function?

How does the structure suit the function?

Red blood cell

Transport oxygen to all parts of the body

Biconcave in shape to easily pass through and across blood vessels. Contain hemoglobin to efficiently absorb oxygen from the lungs.

Nerve cell

Transmit a neurosignal to the required part of the body.

Contains nerve endings to provide senses to all parts of the body.

Fat cell

Store excess food in living beings as fats

Contain a large food vacuole to provide for the storage required to store fats.

Sperm cell

Fertilize the female egg for reproduction to take place

Is composed of a long tail to propel itself towards the egg.

Epidermal cell of a plant

Protects the plant from its envirnoment

Waxy surface to provide the required barrier between the environment and the plant. Regulate water losses.

Photosynthetic cell of a plant

Produce glucose by the process of photosynthesis

Contains chloroplast to trap sunlight required for photosynthesis to take place.

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a. The cells with the cycle of 72 hours must have come from the root tip. This is because the roots are underground and therefore grow at a slower speed than the rest of the plant. Note that the root is the first part of the plant to develop and therefore the oldest part of the plant.

b. The other cells might belong to the leaves. Leaves are most vulnerable to the environment and can fall off at a heavy gush of wind and therefore have a fast growth cycle so that new leaves can grow in place of old ones.

a. Cells with a 72 hour growth cycle must have come from the root tip.

b. The other sample might have come from the leaves.

Mitosis is a naturally occurring continuous process and therefore it can be concluded that it is occurring in all living beings at all times. Note that its rate varies with age. Children in growing age have a faster rate of mitosis as they grow up. The rate of mitosis reduces with age because once a child has grown up, the size of the resulting adult is no longer changing at the same rate but even then mitosis is required to produce new cells as old ones die out. For example independent of age of an adult, red blood cells in a human being have a maximum life of 4 months and need to be replaced continuously.

Yes mitosis a continuously occurring natural process.

A Venn diagram that shows the similarities and differences between plant and animal cells could be represented as follows:

The dissolving of the nuclear membrane is essential so the the chromosomes after separation to chromatids can travel to opposite ends of the parent cell. The new nucleus membranes than forms around them, enclosing them as two nuclei instead of one.

The dissolving of the nuclear membrane is essential so the the chromosomes after separation to chromatids can travel to opposite ends of the parent cell.

a) Find databases using a web search.

b) The research on therapy or solutions to help cancer patients survive or overcome the illness has led to a decrease of infection length while various foods and medical devices may have increased the frequency of cancer occurring in people

a) Find databases using a web search.

a. The antibiotic affects the replication of the DNA of the bacterial cells disturbing it to reduce and eventually stop its growth. The growth of bacteria hence reduces in the body and finally stops. The existing bacterial cells slowly die out and are eliminated from the body. This is how an antibiotic stop a bacterial infection in a body.

b. DNA replication of human body cells MUST not be changed by any antibiotic because the growth of human body cells must remain as it is for regular growth and repair.

a. Antibiotics reduce and stop the bacterial cells capability to reproduce.

b. Human body cells must continue to undergo mitosis for growth and repair.

a) Sun exposure, smoking, and chewing tobacco.

b) Wear sunscreen, do not smoke, do not chew tobacco

a) Sun exposure, smoking, and chewing tobacco.

Plant five of the same plant in the same area with equal sunlight. Water them the same amount every day but subject them all to different temperatures and measure their growth differences .

The process of mitosis ensures the survival of living beings by repairing wounds and injuries that might have led to even death if this naturally occurring mechanism was not in place. Human muscle and nerve cells have a very slow rate of mitosis which may even cease if it is not required, therefore it is harder to recover from a muscle or a nerve injury because the damaged cells are harder to repair and/or replace.

Rate of mitosis is slow for muscle and nerve cells and therefore such injuries take a long time to heal.

a. The one question required here is that “Is the mole hurting?”.

b. The asymmetry, border, color and diameter of the mole are to be observed. She should be recommended a dermatologist if any one or more of the following is visible:

1. The mole is asymmetrical.

2. The border is not defined/visible.

3. The mole color is varying and not uniform.

4. It is large in size.

b. A genetically diverse population is a result of sexual reproduction. According to the saying “Survival of the fittest”. Sexual reproduction ensures, that the best of the genes are passed on.