Section 7-2 Eukaryotic Cell Structure Flashcards

(26 cards)

1
Q

Organelle

A

Little organ

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2
Q

Function of nucleus

A

Contains nearly all the cell’s DNA and w/ coded instructions for making proteins

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3
Q

Important molecule that nucleus contains

A

DNA

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4
Q

Granular material visible within the nucleus is called

A

Chromatin

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5
Q

Granular material in nucleus

A

Chromatin

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6
Q

Chromatin consists of

A

DNA bound to protein

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7
Q

Distinct threadlike structures

A

Chromosomes

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8
Q

How are chromosomes and chromatin different?

A

Chromatin condenses to form chromosomes

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9
Q

Most nuclei contains a small, dense region known as

A

Nucleolus

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10
Q

What occurs in the nucleolus?

A

Assembly of ribosomes begins

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11
Q

Nuclear envelope

A

Nucleus is surrounded by this.

Its pones allow material to move in and out of the nucleus

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12
Q

Ribosomes

A

Proteins are assembled on these. They’re small particles of RNA

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13
Q

Lysosomes

A

Break down organelles that have outlived their usefulness

Contain enzymes that break down lipids, carbohydrates, and proteins

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14
Q

Vacuoles

A

Saclike structures that store material (water, salts, proteins, carbohydrates)

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15
Q

Role of central vacuole in plants

A

Pressure makes it possible for plants to support heavy structures (leaves and flowers)

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16
Q

Chloroplast and mitochondria contain their own genetic information in from of

A

Small DNA molecules

17
Q

Cytoskeleton

A

Network of protein filaments that helps the cell to maintain its shape

18
Q

Ribosome

A

Small particles of RNA and protein that produces protein following instructions from nucleus

19
Q

An internal membrane system in which components of cell membrane and some proteins are constructed

A

Endoplasmic reticulum

20
Q

Golgi Apparatus

A

Stack of membrane in which enzyme attach carbohydrates and lipids to proteins

21
Q

Lysosomes

A

Filled with enzyme used to break down food into particles that can be used

22
Q

Saclike structures that store materials

23
Q

Uses energy from sunlight to make energy rich food

24
Q

Uses energy from food to make high energy compounds

25
Micro tubes function
Maintain cell shape, help build cilia and flagella, from centrioles in cell division
26
Microfilament function
Support the cell, help cells move