Unit 3 Cells

Question 1

Robert Hooke

Answer 1

Cork Slice, looks like tine rooms, invented a microscope

Question 2

Anton van Leeuwenhoek

Answer 2

made simple microscopes , discovered microorganisms

Question 3

Matthias Schleiden

Answer 3

German Botanist that concluded that all animals were composed of cells

Question 4

Theodore Schwann

Answer 4

A German Zoologist that concluded that all animal were composed of cells

Question 5

Virchow

Answer 5

noted that cells could only arise from preexisting cells

Question 6

cell theory

Answer 6

1. all living things are composed of cells
2. cells are the basic unit of structure and function in living things
3. new cells are produced from existing cells

Question 7

heterotrophs

Answer 7

consumers, make their own food, they get food by consuming other living organisms

Question 8

autotrophs

Answer 8

make their own food and do not depend on outside sources for their food

Question 9

all living organisms…

Answer 9

perform chemical reactions, change over time/evolve, respond to their environment, reproduce, maintain a stable internal environment in a process called homeostasis, and share a common history

Question 10

ingestion

Answer 10

the taking in of food and water

Question 11

digestion

Answer 11

breaking down food into small molecules that can be used by the cell

Question 12

cyclosis

Answer 12

the movement of materials inside a cell

Question 13

respiration

Answer 13

breaking down into simpler substances and releasing the stored energy in a form the cell can use

Question 14

biosynthesis

Answer 14

using the energy from foods to form new cell parts, as in growth and repair

Question 15

excretion

Answer 15

the removal of liquid waste from a cell

Question 16

egestion

Answer 16

the removal of solid waste from the cell

Question 17

reproduction

Answer 17

may be sexual or asexual

Question 18

irritability

Answer 18

responding to a stimulus

Question 19

secretions

Answer 19

a substance made in one place, but used in another place

Question 20

cell membrane

Answer 20

separates the internal chemical reactions of the cell from the external environment, separates one cell from the next, regulates the passage of materials into and out of the cell by allowing only certain molecules to enter and leave

Question 21

what is another name for the cell membrane?

Answer 21

plasma membrane

Question 22

what is the cell membrane mostly made of?

Answer 22

lipids and proteins

Question 23

nucleus

Answer 23

the control center of the cell, contains the cell’s DNA, the site where DNA is transcribed into RNA

Question 24

what is the nucleus filled with?

Answer 24

nucleoplasm

Question 25

nucleoplasm

Answer 25

jellylike liquid similar to the cell’s cytoplasm

Question 26

what is the nucleus surrounded by?

Answer 26

a nuclear membrane

Question 27

nuclear membrane

Answer 27

a double membrane that is dotted with thousands of pores that allow materials to move into and out of the nucleus.

Question 28

chromatin

Answer 28

the cell is not dividing, the DNA is in the form of a threadlike material

Question 29

chromosomes

Answer 29

the cell is actively dividing, the chromosome condenses to form them