B1.1 Cells

Question 1

What are living organisms made out of?

Answer 1

cells

Question 2

What is the best definition of cells?

Answer 2

The smallest units of an organisms

Question 3

True or False: cells only make up animal organisms not plants or unicelluar

Answer 3

False

Question 4

How do you view a cell?

Answer 4

through a microscope

Question 5

How does magnification work on a microscope?

Answer 5

You have to do: eyepiece lens magnification × objective lens magnification

Question 6

if the eyepiece lens magnification is 40 and the objective lens is 10, what is the magnification

Answer 6

×400

Question 7

amoeba

Answer 7

A unicellular organism that are like a blob of jelly and can take any form or shape. They can be found in fresh water, salt water, wet soil and even inside animals.

Question 8

binary fission

Answer 8

When a unicellular organism splits itself into two identical cells

Question 9

cell membrane

Answer 9

The cell component that controls which substances can move into and out of the cell.

Question 10

cell

Answer 10

The smallest functional unit in an organism – the building block of life.

Question 11

cell wall

Answer 11

The plant cell component that surrounds the cell, providing support.

Question 12

chloroplast

Answer 12

The plant cell component where photosynthesis takes place.

Question 13

cytoplasm

Answer 13

A ‘jelly-like’ substance found in cells, where all the chemical
reactions take place.

Question 13

concentration

Answer 13

A measure of the number of particles of a substance in a given
volume.

Question 14

diffusion

Answer 14

The movement of liquid or gas particles from a place of high
concentration to a place of low concentration.

Question 15

egg cell

Answer 15

A cell containing female genetic material.

Question 16

euglena

Answer 16

Unicellular organism that performs photosynthesis.

Question 17

flagellum

Answer 17

A tail-like structure that allows euglenas to move.

Question 18

leaf cell

Answer 18

The plant cells that contain chloroplasts, where photosynthesis
takes place.

Question 19

microscope

Answer 19

An optical instrument used to magnify objects, so small details can
be seen clearly

Question 20

mitochondria

Answer 20

The cell component where respiration takes place.

Question 21

nerve cell

Answer 21

An animal cell that transmits electrical impulses around the body. They are long and thin and have connections at each end to join to other nerve cells, which allows them to transmit signals round the body.

Question 22

observation

Answer 22

Carefully looking at an object or process.

Question 23

nucleus

Answer 23

The cell component that controls the cell and contains genetic
material.

Question 24

organism

Answer 24

A living thing

Question 25

red blood cell

Answer 25

An animal cell that transports oxygen around the body. They have no nucleus. They are a disk shape with a dip in the middle to increase surface area for oxygen.

Question 26

respiration

Answer 26

A chemical reaction where food and oxygen are converted into energy, water, and carbon dioxide.

Question 27

root hair cell

Answer 27

A plant cell that takes in water and minerals from the soil through the process called "diffusion".

Question 28

specialised cell

Answer 28

A cell whose shape and structure enable it to perform a particular function.

Question 29

sperm cell

Answer 29

A cell containing male genetic material. They have a streamlined head and a long and thin tail for swimming through liquid. They have lots of mitochondria for energy because the tail requires lots.

Question 29

unicellular

Answer 29

Consisting of just one cell.

Question 30

vacuole

Answer 30

The plant cell component that contains cell sap and helps to keep the cell firm.

Question 31

What thickness should an object under the microscope be and why?

Answer 31

thin because it lets light travel through

Question 31

If you find a thin object underneath the microscope hard to see what could you do?

Answer 31

add dye

Question 32

what are all the steps to use microscope

Answer 32

Move the stage to the lowest position, Place the object you want, Select the objective lens the lowest magnification, Look through the eyepiece and turn the coarse-focus knob slowly until you see your object, Turn the fine-focus knob until your object comes into focus

Question 33

What is the first step to using a microscope

Answer 33

Move the stage to the lowest position

Question 34

What is the fifth step to using a microscope

Answer 34

Turn the fine-focus knob until your object comes into focus

Question 34

What is the third step to using a microscope

Answer 34

Select the objective lens the lowest magnification.

Question 34

What is the second step to using a microscope

Answer 34

Place the object you want

Question 35

What is the fourth step to using a microscope

Answer 35

Look through the eyepiece and turn the coarse-focus knob slowly until you see your object

Question 36

what are the names of the components of a microscope

Answer 36

eyepiece lens, objective lens, stage, coarse focus, fin focus, light, slide

Question 37

Is the course focus knob bigger or smaller that the fine focus

Answer 37

bigger

Question 38

What is the use of the eyepiece and objective lens for?

Answer 38

magnification

Question 39

What is the use of coarse and fine focus

Answer 39

brings the object into focus. coarse before eyepiece

Question 40

What is the use of the stage

Answer 40

to hold the slide

Question 41

What is the use of the slide

Answer 41

to hold the object to view

Question 42

What is the use of the light

Answer 42

to light up the slide so you can see it through the lens

Question 43

What are the four parts that make up an animal cell

Answer 43

cell membrane, nucleus, cytoplasm, mitochondria

Question 44

what are the seven parts that make up a plant cell

Answer 44

cell wall, cell membrane, nucleus, mitchondria, cytoplasm, chloroplasts, vacuole

Question 45

What does a plant cell include that an animla cell does not?

Answer 45

cell wall, vacuole, chloroplasts

Question 46

what are cells designed in special shapes and structures called?

Answer 46

specialised cells

Question 47

a specialised cell's features and structure are known as

Answer 47

adaptations

Question 48

What do all cells in your body need according to oxford smart activate 1 textbook

Answer 48

glucose and oxygen

Question 49

what is a byproduct of respiration in cells?

Answer 49

co2 carbon dioxide

Question 50

Can the blood transfer chemicals and chemicals round your body?

Answer 50

Yes

Question 51

How does oxygen and carbon dioxide get into and out of a plant

Answer 51

through the bottom of a leaf with little holes

Question 52

what does a plant wilt

Answer 52

because the cells require water to fill the vacuole to keep a structure

Question 53

how do ameobas eat

Answer 53

by the process called engulfing where they surround there food and the food vacoule digests it

Question 54

how do ameobas excrete extra water?

Answer 54

through the contractile vacoule

Question 54

what extra things do euglena have than an amoeba

Answer 54

flagellum, eye spot, chloroplasts

Question 55

how do euglena find food

Answer 55

to photosynthesize the euglena uses its eyesport to find sunlight and swim towards it then it uses its chloroplats to create energy from it or if there is no sunlight, like an ameoba, it can engluf too.

Question 56

how euglenas repoduce

Answer 56

binary fission

Question 57

Which part of the particle model helps explain the different boiling points of different substances?

Answer 57

The forces between the particles.