Close

2021-05-14

What are 5 characteristics of mitochondria?

What are 5 characteristics of mitochondria?

Structure

  • the outer mitochondrial membrane,
  • the intermembrane space (the space between the outer and inner membranes),
  • the inner mitochondrial membrane,
  • the cristae space (formed by infoldings of the inner membrane), and.
  • the matrix (space within the inner membrane).

What are the characteristics of mitochondria?

Mitochondria are unlike other cellular organelles in that they have two distinct membranes and a unique genome and reproduce by binary fission; these features indicate that mitochondria share an evolutionary past with prokaryotes (single-celled organisms).

Why are mitochondria considered prokaryotic?

Prokaryotic cells are less structured than eukaryotic cells. They have no nucleus; instead their genetic material is free-floating within the cell. They also lack the many membrane-bound organelles found in eukaryotic cells. Thus, prokaryotes have no mitochondria.

READ:   How does sea floor spreading explain the features of mid-ocean ridges?

Which of the following is not found in mitochondria?

They take part in aerobic respiration and synthesize ATP with the help of the process of oxidative phosphorylation. Mitochondria are absent from anaerobic cells and red blood corpuscles (RBC) or erythrocyte. Erythrocytes are the devoid of any organelle to accommodate a large amount of haemoglobin.

Which enzyme is not present in mitochondria?

Malic dehydrogenase

Which enzyme is present in mitochondria?

The mitochondrial enzyme glutaryl-CoA dehydrogenase is necessary for the metabolism of lysine/tryptophan and hydroxylysine. Absence of the enzyme (usually autosomal recessive) results in mitochondrial dysfunction and production of the toxins glutaric acid and 3-OH-glutaric acid.

What is the mitochondria function?

Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell’s biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).

Is there DNA in the mitochondria?

Mitochondrial DNA is the small circular chromosome found inside mitochondria. The mitochondria are organelles found in cells that are the sites of energy production. The mitochondria, and thus mitochondrial DNA, are passed from mother to offspring.

Do males pass on mitochondrial DNA?

Although the nuclear genome represents an amalgamation of DNA sequences inherited from each parent, the mitochondrial genome is inherited solely from the mother. Males do not transmit their mitochondrial genome to their offspring.

Do all humans have the same mitochondrial DNA?

Mitochondrial DNA carries characteristics inherited from a mother in both male and female offspring. Thus, siblings from the same mother have the same mitochondrial DNA. In fact, any two people will have an identical mitochondrial DNA sequence if they are related by an unbroken maternal lineage.

READ:   Which part of the male reproductive organ are the pollen grains made?

Does mitochondrial DNA come from the mother?

A tenet of elementary biology is that mitochondria — the cell’s powerhouses — and their DNA are inherited exclusively from mothers. A provocative study suggests that fathers also occasionally contribute

Why does mitochondrial DNA only come from the mother?

In sexual reproduction, mitochondria are normally inherited exclusively from the mother; the mitochondria in mammalian sperm are usually destroyed by the egg cell after fertilization. The fact that mitochondrial DNA is maternally inherited enables genealogical researchers to trace maternal lineage far back in time.

What is the life expectancy of someone with mitochondrial disease?

A small study in children with mitochondrial disease examined the patient records of 221 children with mitochondrial disease. Of these, 14% died three to nine years after diagnosis. Five patients lived less than three years, and three patients lived longer than nine years

Is 5/6 short or tall for a girl?

In most Asian countries, South America and others 5′6″ would be fairly tall for a woman. In USA, Canada, Britain and others 5′4 – 5′4 1/2″ is the average height for a woman, so 5′6″ would be a bit taller than average. If you live in Europe where in most countries the average height of women is 5′5″ to 5 ‘7″.

At what age are you half your height?

Another way to estimate a child’s adult height is to double a boy’s height at age 2 or a girl’s height at age 18 months. Remember, a child’s height is largely controlled by genetics. It’s also important to note that children grow at different rates.

Is 5ft 5 tall for a 13 year old?

5’5 is a respectable height for a 13 year old in many countries, though in some places he might be considered slightly taller than average, in others slightly shorter.

READ:   How do we know that sodium has 11 electrons?

Is 5.6 tall for a 13 year old boy?

According to the Centers for Disease Control, the average height for a 13-year-old boy is 5′ 1 3/4″ 1. Boys’ normal height can range from 4’11” at the 10th percentile to 5′ 5 3/4″ at the 90th percentile

Is 5.7 tall for a 13 year old boy?

Yes, 5′1″ – 5′2″ is average height for a 13 year old boy.

Is 5.7 tall for a 13-year-old girl?

5′8 is very tall for a 13-year-old. It is in the 97th percentile meaning that 1 out of 20 males your age should be taller than you.

Is 5ft 8 tall for a 13-year-old?

You are a 13-year-old boy who is 5′8″ tall. That equals 68 inches. If you draw a line down from age 13 (at the top of the chart) and a line across from 68 inches, they intersect at about the 98th percentile. This is very tall for your age!

How tall should you be at 13?

Height by age

Age (years) 50th percentile height for boys (inches and centimeters)
11 56. 4 in. (143.5 cm)
12 58.7 in. (149 cm)
13 61.4 in. (156 cm)
14 64.6 in. (164 cm)

Is 5 feet 8 inches tall for a girl?

5’8 is above the average height for women, but it doesn’t feel terribly tall at all. In most European countries, the average height for women is 5′7″ (170 cm) so it would just be an inch above average. The average US woman is 5′4″ or 163 cm so a 5′8″ woman would be considered quite tall.