Q2b_2361_cell-structure and function-part1

Question 1

Relatively small cells without a nucleus to enclose the DNA, lacking in membrane-bound organelles such as vesicles or mitochondria are ___ cells

Answer 1

Prokaryotic

Question 2

Plants are classified as belonging to Domain ___ while cyanobacteria (and plant plastids) are part of Domain ___

Answer 2

Eukaraya & Bacteria

Question 3

A cell’s plasma membrane consists of proteins (transport, etc.) embedded in a matrix of

Answer 3

Phospholipids

Question 4

The internal membrane-system of Eukaryotic cells that is continuous with the membranes that surround the nucleus is the __

Answer 4

Both endoplasmic reticulum & ER

Question 5

Most of the reactions of the aerobic respiration pathway and ATP-production occur in the ___.

Answer 5

Mitochondria

Question 6

Photosynthesis takes place in the ___.

Answer 6

Chloroplast

Question 7

Yellow flowers are yellow because of the ___ in their cells

Answer 7

Chromoplasts

Question 8

In a chloroplast, solar energy-capture occurs on the ___ and that energy is used to synthesize carbohydrates in the ___.

Answer 8

Thylakoids & Stroma

Question 9

How did plastids and mitochondria originate in eukaryotic cells?

Answer 9

They both evolved from bacteria that entered ancient pre-eukaryotes and established a mutualistic symbiotic relationship

Question 10

What important evolutionary feature do plants, green algae, red algae, and other archaeplastida share?

Answer 10

they are the direct descendants of the ancient eukaryote line that first obtained plastids by endosymbiosis