Cells

Question 1

What is a microscope ?

Answer 1

A microscope is an instrument for viewing small objects.

Question 2

What is a light microscope ?

Answer 2

A light microscope is an instrument for viewing very small objects. A light microscope can magnify things up to 1500 times.

Question 3

What is a electron microscope ?

Answer 3

An electron microscope is an instrument for viewing very small objects. An electron microscope is much more powerful than a light microscope and can magnify things up to a million times.

Question 4

What is monocular ?

Answer 4

A monocular is a microscope.

Question 5

What is a binocular ?

Answer 5

A binocular is a microscope with two eye pieces so you can use both of you eyes to look at the object at the same time.

Question 6

What is a stereo ?

Answer 6

A stereo is a microscope through which the specimen is viewed using both eyes.

Question 7

What is magnification ?

Answer 7

Magnification is the number of times the image of an object has been enlarged using a lens or lens system. For example, a magnification of two means the object has been enlarged to twice its actual size.

Question 8

What are cells ?

Answer 8

Cells are the building blocks of living things. There are many different sized and shaped cells in animals and plants, as well as single-celled organisms.

Question 9

What is unicellular ?

Answer 9

describes an organism having only one cell

Question 10

What is multicellular ?

Answer 10

having many cells. Most plants and animals are multicellular

Question 11

What is a micrometer ?

Answer 11

A micrometer is a length of one millionth of a metre

Question 12

What is a nanometer ?

Answer 12

A nanometer is a unit of measurement equal to one billionth of a metre.

Question 13

What is nanotechnology ?

Answer 13

Nanotechnology is a rapidly developing field that includes studying and investigating cells and other objects of the smallest dimensions.

Question 14

What is prokaryote ?

Answer 14

Prokaryotes are organisms that are classified as being the prokaryotes kingdom.

Question 15

What are eukaryotes ?

Answer 15

Eukaryotes are a member of the group of organisms that has a membrane around the nucleus in each of their cells

Question 16

What is a cell membrane ?

Answer 16

A cell membrane is a structure that encloses the contents of a cell and allows the movement of some materials in and out

Question 17

What is a cytosol ?

Answer 17

A cytosol is the fluid found inside cells.

Question 18

What are ribosomes ?

Answer 18

Ribosomes are small structures within a cell in which proteins such as enzymes are made.

Question 19

What are cytoplasms ?

Answer 19

Cytoplasms are the jelly-like material inside a cell. It contains many organelles such as the nucleus and vacuoles.

Question 20

What is metabolism ?

Answer 20

Metabolism is the chemical reactions occurring within an organism that enable the organism to use energy and grow and repair cells.

Question 21

What is binary fission ?

Answer 21

Binary fission is the reproduction by the division of an organism (usually a single cell) into two new organisms.

Question 22

What is Animalia ?

Answer 22

Animalia is the kingdom of organisms that have cells with a membrane around the nucleus, but no cell wall, large vacuole or chloroplasts.

Question 23

What is planate ?

Answer 23

Planate is the kingdom of organisms that have cells with a membrane around the nucleus, cell wall, large vacuole and chloroplasts, commonly called plants.

Question 24

What is fungi ?

Answer 24

Fungi is the kingdom of organisms, such as mushrooms and moulds, that help to decompose dead or decaying matter.

Question 25

What is protoctist ?

Answer 25

Protoctist is the kingdom of organisms, including algae and protozoans, that do not fit into other groups.

Question 26

What is prokaryote ?

Answer 26

Prokaryote are the kingdom of organisms that consist of single cells with a nucleus not surrounded by a membrane or a cell wall, commonly called bacteria.

Question 27

What is mitochondria ?

Answer 27

Mitochondria is a small rod-shaped organelles that supply energy to other parts of the cell. They are usually too small to be seen with light microscopes. Singular = mitochondrion.

Question 28

What is cellular respiration ?

Answer 28

Cellular respiration is the chemical reaction involving oxygen that moves the energy in glucose into the compound ATP. The body is able to use the energy contained in ATP.

Question 29

What is photosynthesis ?

Answer 29

Photosynthesis is the food-making process in plants that takes place in chloroplasts within cells. The process uses carbon dioxide, water and energy from the sun.

Question 30

What is chlorophyll ?

Answer 30

Chlorophyll is the green-coloured chemical in plants that absorbs the light energy used in photosynthesis to make food from carbon dioxide and water.

Question 31

Nucleas

Answer 31

Nucleas: central part of an atom, made up of protons and neutrons. Also roundish structure inside a cell that acts as the control centre for the cell. Plural = nuclei

Question 32

Epidermis

Answer 32

Outmost layer of the skin

Question 33

Dermis

Answer 33

the medical name for the deeper part of the skin

Question 34

Receptors

Answer 34

special cells that detect energy and convert it to electrical energy that is sent to the brain

Question 35

Sweet gland

Answer 35

tiny, coiled tube in the skin through which water and salt are removed from the body, helping to control body temperature

Question 36

Pore

Answer 36

small opening in the skin. Perspiration reaches the surface of the skin through pores