Cells Flashcards

(49 cards)

1
Q

What do we call the basic building block of all living life

A

Cells

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2
Q

What is an organelle

A

A small part of the cell

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3
Q

What is the organelle that holds DNA and controls the cells activities called

A

Nucleus

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4
Q

What is the layer around the cell which controls substances moving in or out the cell called

A

Cell membrane

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5
Q

What is the gel like substance where chemical reactions happen called?

A

Cytoplasm

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6
Q

What is the small organelle, which is the sight of respiration ( energy release) called 🤔

A

Mitochondria

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7
Q

What is a small organelle that makes proteins called

A

Ribosome

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8
Q

What is the rigid layer that strengthens the cell and supports its shape called

A

Cell wall

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9
Q

What is a small organelle that performs photosynthesis called

A

Chloroplast

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10
Q

What is the process where the plant uses light from the Sun to increase the energy in the plants chemical store called

A

Photosynthesis

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11
Q

What is the organo that is filled with sap to keep the cells turgid ( firm ) called

A

Vacuole

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12
Q

What are the key structural differences between animal cells and plant cells

A

Plant has so cell wall, chloroplast and vacuol, which the animal cell does not

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13
Q

What does magnification mean?

A

Making an image large enough to see

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14
Q

Name part of da microscope

A

Eye piece, objective lens, stage, lamp, focusing knob

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15
Q

What is making an image sharp enough to be viewed called

A

Focusing

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16
Q

How do you focus an image using microscope

A

By turning the focus knob

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17
Q

How do you record an image from a microscope

A

Draw what can be seen through the eyepiece

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18
Q

What is the number of services that are exposed to the surroundings called?

A

Surface area

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19
Q

In a cell what are th effects of large surface area

A

Substances can enter and leave the cell more quickly

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20
Q

What is the movement of substances from an area of high concentration to an area of low concentration called?

21
Q

Name 2 substances that move into a body cell by diffusion

A

Water and glucose

22
Q

Name 1 substance that moves out a body cell

A

Carbon dioxide

23
Q

What is diffusion of water known as

A

It is known as Osmosis

24
Q

Give 3 examples of specialised cells on animals

A

Red blood cell, Nerve cell, muscle cell

25
Which cell has these structural features? Very long lots if connections and insulation around it
Never cell
26
How does a nerve cells insulation support its function
To help it keep electrical signals travelling quickly
27
How does a nerve cells length support its function
Allows electrical signals to be transmitted over long distances
28
29
How does a nerve cells many connections support its function
To transmit signals to lots of other nerve cells
30
What cell has these structural features? Lots of mitochondria for energy release and cells are merged so they can contract
Muscle cell
31
How does the muscle cell support its function
To contract to bring about movement
32
How do the amount of mitochondria in a muscle cell support its function
Many mitochondria for energy release
33
Why is it important muscle cells are merged together
It allows them to contracts and to bring about movement
34
What's so has the structural features? Biconcave shape , no nucleus, lots of haemoglobin.
Red blood cells
35
How does the structure if the red blood cell support its function
Maximise surface area, maximise space for haemoglobin. Haemoglobin to carry the oxygen
36
How does the shape of the blood cell support it's function
Biocincave, maximises surface area
37
How does the hemoglow been support the role of the red blood cell
Haemoglobin carries oxygen
38
Why does a Red Blood Cell not have a nucleas
To maximise space for the haemoglobin
39
Give 2 examples of specialised cells in plants
Root hair cell, Palisade cell
40
What cell had these structural features? Large surface area, long extension, no chloroplast
Root hair cell
41
How does a Root Hair Cells surface area support its function
Large surface area means it can absorb substances quickly
42
What feature of a typical plant cell will we not find in a Root Hair Cell?
Chloroplast
43
Why does the Root Hair Cell not have chloroplast
It does not photosynthesise (no light underground )
44
How does the structure of a Root Hair Cell support its function
Large surface area to absorb water, no chloroplast as there is no light underground (no photosynthesis )
45
What cell has these structural features? Lots of chloroplast, at the top of the leaf
Palisade cell
46
Where in the leaf is the palisade cells found
At the top of the leaf
47
Why are palisade cells found at the top of the leaf
So they can absorb as much light as possible ( for photosynthesis)
48
Why do palisade cells contain many chloroplasts ?
To absorb as much light as possible
49
How does the structure of a palisade cell support its function
Absorbs light to preform most of the photosynthesis