Year 9 Flashcards

(44 cards)

1
Q

What is an organelle

A

Part of a cell with a particular function

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2
Q

What is a cell

A

Basic structural unit of living organisms

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3
Q

What is tissue

A

A group of specialised cells that have similar structure and function

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4
Q

What is an organ systems

A

Groups of organs that carry out a particular function

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5
Q

What is an organ

A

A collection of different tissues working together to perform a particular function

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6
Q

What is an organism

A

All the organs systems working together in a living thing

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7
Q

What are eukaryotes

A

Has a nucleus bound by a membrane e.g. animals,fungi

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8
Q

What is a cell membrane

A

A thin surface layer around the cytoplasm of a cell

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9
Q

What is cell wall

A

Non-living layer outside the cell membrane of certain types of cells.

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10
Q

What are cholorplast

A

They are organelles found in some plant cells. The site of the reaction of photosynthesis.

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11
Q

What is the vacuole

A

It’s a membrane-bound space in a plant cell, filled with a solution of sugars and salt cell sap

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12
Q

What is the nucleus

A

It a cell organelle that contains chromosomes. Controls the activity of the cell.

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13
Q

What are ribosomes

A

Tiny structures in the cytoplasm of cells, the site of protein synthesis

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14
Q

What are mitochondria

A

Organelles that carries out aerobic respiration, realising energy from the cell

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15
Q

What is cytoplasm

A

Jelly like material that makes up most of a cell

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16
Q

What does eyepiece and lense do

A

Magnify the specimen

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17
Q

What does course and fine focus do

A

Focus the image

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18
Q

What does the diagram do

A

Controls the amount of light that goes on the stage/specimen

19
Q

What is the stage

A

Where the specimen goes

20
Q

Mycelium

A

a network of hyper in the soil or dead organic matter

21
Q

Hypea

A

Tiny thread like filaments that contain many nuclei

22
Q

Chitin

A

Substance found in the cell wall

23
Q

Extra cellular enzymes

A

They release outside of the fungal hypea onto the food

24
Q

Sparotrophic nutrion

A

Dead organic matter is digested and then the products are absorbed by the hypea

25
Glucose
How fungo store their carbohydrates(glucose)
26
Mucor
A type of multicellular fungus
27
Yeast
A type of unicellular fungus
28
Tell me 3 fungal characteristics
They have cell walls made of chitin, they feed saprotphically and they from thread like structures called hypea
29
What do all living organism do
Mrs grenc
30
What are characteristics of plants
Multicellular, cells contain chloroplasts, cellulose in there walls, carbohydrates as starch.
31
What characteristics do animals have
Multicellular, do not contain chloroplasts, no cell wall, able to move, carbohydrates as glycogen
32
What characteristics do fungi have
Not able to carry out photosynthesis, body usually organised into mycelium made from threadlike structures called hyphae, uses saprotrophic nutrition.
33
What characteristics do protoctists have
Single celled
34
What characteristics do bacteria have
Singled called, lack a nucleus but have DNA,
35
What characteristics do viruses have
Not living organisms, can only reproduce in living cells,no cellular structures,
36
What does a nucleus do
the nucleus serves both as the repository of genetic information and as the cell's control center.
37
What does the cytoplasm do
The cytoplasm is responsible for holding the components of the cell and protects them from damage.
38
What does the cell membrane do
It controls what goes in and out of the cell
39
What does the cell wall do
It provides the cell with both structural support and protection, and also acts as a filtering mechanism.
40
What does the mitochondria do
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions where photosynthesis occurs
41
What does the ribosomes do
A ribosome is the cellular machinery responsible for making proteins
42
What does the vacuole do
Vacuoles might store food or any variety of nutrients a cell might need to survive.
43
What is osmosis
Osmosis is the diffusion of water molecules from a dilute solution (high water potential) to a concentrated solution(low water potential) across a partially permeable membrane
44
What is active transport
Active transport allows cells to move substances from a low concentration to a high concentration. This movement is against the concentration gradient. Active transport requires energy, which is released during respiration