Biology 4.1 Flashcards

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1
Q

Animal Cells

A

The cell has a lot of structures that allows the cells to perform many functions

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2
Q

Animal Cell Parts (Also found in plant cells)

Cell Membrane

A

The thin covering that controls the flow of materials in and out the cell

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3
Q

Animal Cell Parts (Also found in plant cells)

Cytoplasm

A

jelly-like substance that contains the organelles (specialized cell parts)

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4
Q

Animal Cell Parts (Also found in plant cells)

Mitochondria

A

provide energy for cells

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5
Q

Animal Cell Parts (Also found in plant cells)

Ribosomes

A

manufacturing plants for proteins

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6
Q

Animal Cell Parts (Also found in plant cells)

Endoplasmic Reticulum

A

membrane-covered channels that act as a transport system for

materials made in the cell

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7
Q

Animal Cell Parts (Also found in plant cells)

Vesicles

A

membrane-covered sacs formed by the endoplasmic reticulum. Vesicles transport new proteins to the Golgi Body

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8
Q

Animal Cell Parts (Also found in plant cells)

Golgi Body

A

sorts and packages proteins for transport

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9
Q

Animal Cell Parts (Also found in plant cells)

Nucleus

A

Controls all cell activity

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10
Q

Animal Cell Parts (Also found in plant cells)

Nucleolus

A

Membrane-free organelle that makes ribosomes

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11
Q

Animal Cell Parts (Also found in plant cells)

Nuclear Membrane

A

Protects the contents of the nucleus

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12
Q

Animal Cell Parts (Also found in plant cells)

Nuclear Pores

A

Openings in the Nuclear Membrane that only allows certain materials to pass

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13
Q

Animal Cell Parts (Also found in plant cells)

Vacuoles

A

Membrane-bound storage containers

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14
Q

Plant Cells

A

Plant cells are equipped with some structures that Animal cells do not have

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15
Q

Plant Cells

Chloroplast

A

traps energy from sun to make glucose, the food for the plant

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16
Q

Plant Cells

Cell Wall

A

tough, rigid structure that surrounds the cell membrane, it provides protection and structural support

17
Q

Plant Cells

Large Vacuoles

A

Plant Cells are equipped with large vacuoles to store water

18
Q

The Nucleus and DNA

A

The nucleus contains DNA (deoxyribonucleic acid);
DNA is the molecule has the master set of instructions for
how cells function, what they will produce, and when they will die

19
Q

Structure of DNA

DNA looks like a twisted ladder - two strands wrap around each other in a spiral shape

A

Just to study

20
Q

Structure of DNA

The sides of the DNA ladder are made of sugar and phosphate

A

Just to study

21
Q

Structure of DNA

the steps of the ladder are made of four nitrogen bases: adenine (A), guanine (G), Cytosine (C), and thymine (T)

A

Just to study

22
Q

Structure of DNA

The bases join in a specific way

  • A always joins with T
  • H always joins with C
A

Just to Study

23
Q

DNA in the Nucleus

Most of the time DNA is in the form of chromatin

A

Just to study

24
Q

DNA in the Nucleus

Chromatin coils tightly into X-shaped chromosomes

A

Just to study

25
Q

DNA in the Nucleus

Every organism has a specific number of chromosomes

A
26
Q

DNA in the Nucleus

Human cells have 46 chromosomes arranged in 23 pairs

A
27
Q

DNA in the Nucleus

The 23rd pair determines sex; XX for females and XY for males

A