Unit 2 Questions

Question 1

Who came up with the term cells?

Answer 1

Robert Hooke

Question 2

What are the 3 parts of the cell theory?

Answer 2

1. All cells come from other cells
2. All living organisms are made up of one or more cells
3. The cell is the most basic unit of life

Question 3

Who is the father of microbiology?

Answer 3

Antoine van Leeuwenhoek

Question 4

What are the 6 kingdoms of life?

Answer 4

Plants, animals, protists, fungi, archaebacteria, and eubacteria

Question 5

Equation for aerobic cellular respiration

Answer 5

C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O+ Energy

Question 6

WORD equation for fermentation

Answer 6

glucose + enzymes = carbon dioxide + ethanol

Question 7

Where does cellular respiration occur in cells?

Answer 7

Mitochondria

Question 8

What does aerobic respiration completely break down?

Answer 8

Glucose, amino acids, and fatty acids

Question 9

Which process produces more energy? Anaerobic or aerobic?

Answer 9

Aerobic by almost 15 times

Question 10

What gas diffuses into the cells?

Answer 10

Oxygen

Question 11

What gas diffuses out of the cell?

Answer 11

Carbon dioxide

Question 12

Fill the blank, in diffusion gases move from areas of _______ concentration to areas of _______ concentration.

Answer 12

High, low

Question 13

What is osmosis?

Answer 13

Osmosis is the passive movement of water molecules from areas of high concentration to areas of low concentration.

Question 14

What is facilitated diffusion?

Answer 14

Facilitated diffusion is a type of passive movement where molecules are transported across a membrane.

Question 15

What process allows glucose to enter the cell?

Answer 15

Facilitated Diffusion

Question 16

Why do your heart rate and breathing rate rise when you exercise?

Answer 16

These rise because your cells need more oxygen to produce more ATP and you need more blood because red blood cells carry oxygen to the cells.

Question 17

Organize the following from smallest to largest: carbon atom, phospholipid, glucose, amoeba, red blood cell, water molecule, ribosome, mitochondria

Answer 17

Ribosome, Carbon Atom, Phospholipid, Glucose, Red Blood Cell, Mitochondria, Amoeba, and Water Molecule

Question 18

Why are cells so small?

Answer 18

Cells are so small because they need to get nutrients fat and get waste out quickly, they are also so small so they can have a higher surface area than volume.

Question 19

Why must a cell have a higher surface area than volume?

Answer 19

They must have a higher surface area than volume because the cell needs to have more membrane so it can be flexible and hold the organelles, this allows materials to be transported in and out of the cell as efficiently as possible.

Question 20

What are the 3 stages of the cell cycle?

Answer 20

Interphase, mitosis, and cytokinesis

Question 21

What is the longest stage of the cell cycle?

Answer 21

Interphase

Question 22

In what stage does DNA replication take place?

Answer 22

S-Phase