Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > B2 - Cells, Tissues and Organs > Flashcards

B2 - Cells, Tissues and Organs Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

Give 2 functions of the nucleus.

A
  • Controls the activities of the cell

* Carries genetic information as genes on chromosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What happens within the cytoplasm?

A

Chemical reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the cell wall made of?

A

Cellulose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the function of the mitochondria?

A

The mitochondria carry out respiration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are bacteria?

A

Bacteria are single-celled organisms that are typically much smaller than plant or animal cells.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the definition of plasmids?

A

Extra loops of DNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the two ways in which yeast cells are able to respire?

A
  • Carry out aerobic respiration when there is plenty of oxygen
  • Anaerobic respiration when there is no oxygen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are specialised cells?

A

Cells that have adapted their structure to give them additional features that enable them to perform a certain function within the organism.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Give an example of a specialised cell.

A

• Sperm cells:

  • A long tail to swim to the egg
  • More mitochondria to provide energy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a tissue?

A

A tissue is a group of similar cells that work together for a specific function.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is an organ?

A

An organ is formed from several tissues working together for a particular function.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is an organ system?

A

A collection of organs that work together to perform an overall body function

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the 3 main organs of a plant?

A
  • Roots
  • Stems
  • Leaves
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is diffusion?

A

The net movement of particles from an area of high concentration to an area of low concentration.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the factors that affect the rate of diffusion?

A
  • Temperature
  • Diffusion distance
  • Surface area
  • Concentration gradient
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the function of ribosomes?

A

They carry out protein synthesis.

17
Q

In which part of the cell is energy released during respiration?

A

The mitochondria

18
Q

What is cell differentiation?

A

When a cell becomes specialised due to cell growth.

19
Q

What does muscular tissue do?

A

Contract to bring about movement.

20
Q

What does glandular tissue do?

A

Glandular tissue produces substances e.g. enzymes, hormones

21
Q

What does epithelial tissue do?

A

Epithelial tissue covers some parts of the body.

22
Q

What does epidermal tissue do?

A

Epidermal tissue covers the plant.

23
Q

What can mesophyll do?

A

Mesophyll can photosynthesise.

24
Q

What can xylem and phloem do?

A

The can transport substances around the plant.

25
Q

When you eat food, what must be changed?

A

Good must be changed from insoluble molecules, into soluble molecules (digestive system)

26
Q

What does the digestive system consist of?

A
  • GLANDS - pancreas, salivary glands which produce digestive juices
  • STOMACH AND SMALL INTESTINE - where digestion occurs
  • LIVER - produces bike
  • SMALL INTESTINE - absorption of soluble food occurs
  • LARGE INTESTINE - where water is absorbed from the undigested food, producing poo
27
Q

What tissue does the stomach have?

A
  • EPITHELIAL TISSUE - to line the inside of the stomach
  • GLANDULAR TISSUE - to release digestive juices
  • MUSCULAR TISSUE - to churn food and digestive juices
28
Q

Give two reason why starch isn’t digested in the stomach.

A
  • Doesn’t produce amylase

* Acidic pH destroys amylase made by the salivary glands

29
Q

Give two differences between a plant leaf and yeast cell.

A

Leaf cells have chloroplasts and a cellulose cell wall, yeast cells do not.

30
Q

When, and in which direction, will diffusion take place in solutions and in gases?

A

If two solutions are separated by a cell membrane:
• Particles will move from a region of high concentration to a region of low concentration.
• Gases will also defuse through the air from a region of high concentration to a region of low concentration.

Biology (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions