Unit B: Cells and Systems Flashcards

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1
Q

Define what organisms mean?

A

All living things

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2
Q

What are the six characteristics of living things?

A

1: They need energy
2: Grow and develop
3: Respond to the environment
4: Reproduce
5: Have adaptations
6: Environment

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3
Q

What’s the difference between structure and function?

A

structures are the shape for a specific function of task

functions are how the structures work

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4
Q

Can you name all 8 body systems?

A

Circulatory, Respiratory, Digestive, Nervous, Excretory, Skeletal, Muscular, Integumentary

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5
Q

What are the 2 types of cells?

A

Unicellular and Multicellular

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6
Q

What are unicellular cells?

A

An organism made up of one cell

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7
Q

What are multicellular cells?

A

An organism made up of multiple cells

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8
Q

What is the function of a microscope?

A

A telescope device that can look at something really close

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9
Q

What is an amoeba?

A

Unicellular cells that live in water

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10
Q

What are pseudopods?

A

a “foot-like- structure to make amoeba’s move

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11
Q

What is the cell membrane?

A

Cell membranes are semipermeable and allow only some substances such as water and oxygen to pass through.​

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12
Q

What is diffusion?

A

Particles naturally want to move from an area of high concentration to an area of low concentration

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13
Q

What is osmosis?

A

Water particles move from the HIGHER concentrated water to the LOWER concentrated water

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14
Q

Cells in multicellular organisms develop and reproduce through ____ ______

A

binary fission

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15
Q

Cells can undergo certain functions because they are ______

A

specialized

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16
Q

What are the 4 animal tissue types?

never eat moldy cheese

A

Nervous, Epithelial, Muscle, and Connective.

17
Q

What are the 3 plant organs that make up a plant tissue?

A

Leaf. Stem, and Roots

18
Q

What are the 4 plant tissue types?

Pigs take stinky poos

A

Protective, Transport, Storage, Photosynthetic

19
Q

What’s the difference between mechanical and chemical digestion?

A

Mechanical is the physical breakdown of the food while Digestive is the break down of large particles by using enzymes.

20
Q

What starts digestion?

A

Digestion begins at the mouth, with the mechanical breakdown of your food

21
Q

What is gastric juice composed of?

A

It’s composed of Mucus, hydrochloric acid, and enzymes

22
Q

What does the epiglottis do?

A

As you swallow, a flap of skin moves across your windpipe and food is funneled into the esophagus.

23
Q

What is the function of villi and microvilli?

A

When the food has been broken into smaller pieces the small intestine absorbs these small particles, through villi. On each villi, there are more bumps and groves called microvilli.

24
Q

What’s the difference between the large intestine and the small intestine?

A

Mechanical and Chemical Digestion is complete when it reaches the large intestine while the small intestine, breaks down starches and proteins into smaller pieces.

25
Q

What are alveoli?

A

The alveoli are surrounded by capillaries (small blood vessels) that have a wall, one cell thick.

26
Q

What happens when you’re inhaling air?

A

When inhaling, muscles contract, which pulls your ribs up and pushes your diaphragm down. Your chest becomes larger and pulls air in.

27
Q

What happens when you exhaling air?

A

When you exhale, these muscles relax and your ribs go down and the diaphragm up.

28
Q

Describe the importance of the cell?

A

1) All organisms are made up of at least one cell

2) Every cell comes from another cell

29
Q

What are nutrients?

A

Substances that provide the energy and materials that organisms need to grow, develop, and reproduce

30
Q

Explain what stimulus means?

A

If you put your hand on a hot stove, you reaction would immediately be removing your hand