cells big test Flashcards

0
Q

What is another name Hooke gave

for cells?

A

it is called “small rooms” and “cells”

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1
Q

What is a microscope with two

lenses called?

A

a compound microscope

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2
Q

Describe a convex lens.

A
  • it has a center thicker than that is the thicker than the edge
  • when light passes through a convex lens and into your eye, the image you see is magnified
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3
Q

What cell parts do plant cells have
that animal cells do not have? What
are their functions?

A

chloroplasts- makes food for plant cells using energy from sunlight
cell wall- supports and protects

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4
Q

What is the major difference
between a compound microscope and an
electron microscope?

A

compound microscope- uses two lenses at once and light

electron microscope- uses a beam of electrons

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5
Q

A microscope makes close objects

look?

A

bigger

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6
Q

What are some functions of a cell

wall?

A

A plant’s cell wall helps protect and support the cell

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7
Q

What are the 3 parts of the Cell

Theory?

A
  • living things are composed of cells
  • cells are the basic units of structure and function in living things
  • all cells are produced from other cells
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8
Q

How do you find the total
magnification
Of a microscope?

A

first you multiply the eyepiece times the nosepiece and then your answer is the eyepiece times the nosepiece with a x after it

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9
Q

What is the nucleus’ function?

A

the nucleus acts as a cell’s control center, directing all of the cells activities

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10
Q

What is resolution?

A

It is the degree to which two separate structures that are close together can be distinguished, better resolution shows more detail

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11
Q

What are the basic units of function and

structure in living things?

A

cells

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12
Q

What is the function of a cell

membrane?

A

a cell membrane controls which substances pass into and out of a cell

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13
Q

What are the three ways cells are
organized in a multicellular
organism?

A

tissue, organs, organ system

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14
Q

an organism’s functions are the processes that enable it to live, grow, and reproduce, those functions include _________ ____________, ________, __________, and _________ ____ ____ _________.

A
  • obtaining oxygen
  • food
  • water
  • getting rid of wastes
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15
Q

you need _______ to live

A

cells

16
Q

Mitochondria and chloroplasts are two types of _________

A

organelles

17
Q

smallest to largest level

A

cell, tissue, organ, organ system, organism

18
Q

A certain cell can no longer package and release materials out of the cell. Which of the cells organelles is not working?

A

Golgi Apparatus

19
Q

true/false

(Cells) are the basic unit of structure and function in living things

A

True

20
Q

true/false

(Telescopes) are instruments that can magnify very small objects

A

False microscopes

21
Q

True/false

Cells were first observed by (Robert Hooke)

A

True

22
Q

True/false

(Light microscopes)use beams of electrons to produce magnified images

A

False Electron microscopes

23
Q

True/false

(Resolution)is the condition when objects appear larger than they really are

A

False. Magnification

24
Q

True/false

(Magnification) is the ability to distinguish details on an object

A

False. Resolution

25
Q

True/false
If a compound microscope has a 10x lens in its eyepiece and a 20x lens in it’s nosepiece, it’s total magnification is (100x)

A

False 200x