Biology Quick Information Illustration

8/9/2019 Biology Quick Information Illustration

1/10

Red blood cells are also

known as RBCs, red

blood corpuscles,

haematids, erythroid

cells or erythrocytes.

Mature red blood cells are

flexible biconcave disks that

lack a cell nucleus and most

organelles. This cell acts as

medium to transport oxygen

to all of the body cell.


2/10

Human

immunodeficiency

virus (HIV) is amember of the retrovirus

family. It causes

acquiredimmunodeficiency

syndrome (AIDS) in

which humans immune

system begins to fail,

leading to life-threatening opportunistic

infections. Infection with

HIV occurs by the

transfer of blood,

semen, vaginal fluid,

-


3/10

Plant cells are eukaryotic cells

that differ in several key respects

from the cells of other

eukaryotic organisms. They haveParenchyma cells,collenchyma

cells,Pectin and hemicellulose,

Sclerenchyma cells and most

distictively has chloroplast tomake their own food


4/10

The cell is the functional basic unit

of life. It is the smallest unit of life

that is classified as a living thing,and is often called the building

block of life. Humans have about

100 trillion or 1014 cells; a typical

cell size is 10 m; a typical cell

mass is 1 nanogram. The largest

cells are about 135 m in theanterior horn in the spinal cord

while granule cells in the

cerebellum, the smallest, can be

some 4 m and the longest cell can

reach from the toe to the lower

brain stem


5/10

Sperm is male reproductive cells. In the types of

sexual reproduction known as anisogamy and

oogamy, there is a marked difference in the size of

the gametes with the smaller one being termed the

"male" or sperm cell. The human sperm cell is

haploid, so that its 23 chromosomes can join the 23

chromosomes of the female egg to form a diploidcell. Sperm cells cannot divide and have a limited

life span, but after fusion with egg cells during

fertilization, a new organism begins developing,

starting as a totipotent zygote.


6/10

An ovum (plural ova, from the

Latin word ovum meaning eggor egg cell) is a haploid female

reproductive cell or gamete. Both

animals and embryophytes have

ova. The term ovule is used for

the young ovum of an animal, as

well as the plant structure that

carries the female gametophyte

and egg cell and develops into a

seed after fertilization. In lowerplants and algae, the ovum is

also often called oosphere.


7/10

The bacteria are a large

group of unicellular,prokaryote microorganisms.

Typically a few micrometres in

length, bacteria have a wide

range of shapes, ranging from

spheres to rods and spirals.

Bacteria are ubiquitous inevery habitat on Earth,

growing in soil, acidic hot

springs, radioactive waste,

water, and deep in the Earth's

crust, as well as in organicmatter and the live bodies of

plants and animals.


8/10

per second).

Paramecium is a group of unicellular

ciliate protozoa, which are

commonly studied as arepresentative of the ciliate group,

and range from about 50 to 350 m

in length. Simple cilia cover the

body, which allow the cell

to move with a synchronousmotion (like a caterpillar) at

speeds of approximately

2,700m/

second (12 body lengths

per second).


9/10

Amoeba is a genus of protozoan.The

cell's organelles and cytoplasm are

enclosed by a cell membrane, obtaining

its food through phagocytosis.

Amoebae have a single large tubular

pseudopod at the anterior end, and

several secondary ones branching to

the sides. The most famous species,

Amoeba proteus, averages about 220-

740 m in length while moving, making

it a giant among amoeboids.[7] A few

amoeboids belonging to different

genera can grow larger, however, such

as Gromia, Pelomyxa, and Chaos.


10/10

A virus is a small infectious agent that can replicate only inside the

living cells of organisms. Most viruses are too small to be seen

directly with a light microscope. Viruses infect all types of

organisms, from animals and plants to bacteria and archaea. Sincethe initial discovery of tobacco mosaic virus by Martinus

Beijerinck in 1898, about 5,000 viruses have been described in

detail, although there are millions of different types. Viruses are

found in almost every ecosystem on Earth and are the most

abundant type of biological entity.

Biology Quick Information Illustration

Documents

Transcript of Biology Quick Information Illustration