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Flashcards in cell structure and functions Deck (11):
0

The nucleus includes all of the following except
A. cytoplasm
b. nuclear envelope
c. DNA
d. nucleolus
e. chromatin

a. cytoplasm

1

Which of the following is not true of a cell membrane?
A. Cell membranes allow All substances to pass through easily
B. It is selectively permeable so only certain molecules can pass through it
C. It acts more like a fluid than a solid because its molecules are constantly moving
D. Cell membranes surround all animal, plant, and bacterial cells
E.It is a bilayer composed mainly of phospholipids and proteins

A. Cell membranes allow All substances to pass through easily

2

substances produced in a cell and exported outside of the celll would pass through

endoplasmic reticulum and Golgi apparatus

3

cells like muscle cells which require lots of energy would probably have many

mitochondria

4

viruses, bacteria, and old organelles that a cell wants to get rid of are broken down in

lysosomes

5

the structure that synthesize proteins in cells are the

ribosomes

6

the dark spot seen in the nucleus in non-dividing cells where RNA for ribosomes is made is called the

nucleolus

7

the organelle that makes steroids in gland cells, regulates calcium in muscle cells, and breaks down toxins in liver cells is the

smooth ER

8

the cells organelles that are surrounded by Double membranes and contain their own dna are the

nucleus, chloroplasts and mitochondria

9

One difference between eukaryotes and prokaryotes is that

eukaryotes have membranes around their nucleus and organelles and prokaryotes dont

10

vacuoles are ______ in plant cells than in animal cells

larger