Lesson 1

Question 1

0.32789351851851856

Question 2

Cell Organelles and Their Functions

Question 3

The Structure of the Cell

Question 4

The study of the different structures and functions of the cells is known as cytology.

Question 5

There are different kinds of cells. The smaller cells are the tiny one-celled organisms

Question 6

called bacteria.

Question 7

There are two kinds of cells based on their nuclei: the prokaryotes and eukaryotes.

Question 8

Prokaryotes are organisms that do not have the nucleus

Answer 8

chloroplasts

Question 9

and complex flagella. Their genetic materials are arranged in ring-like strands not enclosed

Question 10

by membrane. Prokaryotes consist of bacteria and cyanobacteria.

Question 11

The Eukaryotes on the other hand

Answer 11

are organisms with nucleus.

Question 12

otglasn

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bsosome

Question 14

-choroplast

Question 15

Golgi

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nucleus.

Question 17

Figure 2: Plant Cell

Question 18

Parts of a Cell

Question 19

ribsnme

Question 20

1. Cell Membrane

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nudeus

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iosome

Question 23

Golgi

Question 24

The cell membrane functions as:

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The cell membrane (also known as

Question 26

plasma membrane) is double-layered

Question 27

membrane that encloses the cell. It is made up

Question 28

of two layers of phospholipids with proteins

Question 29

and carbohydrates scattered outside

Answer 29

within and

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inside the bilipid layer like a mosaic (fluid mosaic

Question 31

model).

Question 32

ogbplasm

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Fiqure 3: Animal Cell

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Protoplasm and Its Organelles

Question 35

Lobsma tel

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embrane

Question 37

mitochondri

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soSme

Question 39

||

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Eukaryotic cells have three main parts namely: cell membrane

Answer 40

cytoplasm and

Question 41

KB/S

Question 42

Carbohydrate

Question 43

chạin

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Protein

Question 45

mole cule

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Cytoplasm and Karyoplasm (Nucleoplasm)

Question 47

the boundary between the cell and its external environment: and

Question 48

ell wl

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l Lipids

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(bilayer)

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ne

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endosyus

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Fiqure 4: Cyanobacterium:

Question 54

A Prokaryote

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olasmig

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Felum

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Protein molecule

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as a structure that controls the movement of substances in and out of the cell

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-Protein channel

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Outside

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3o nside cell

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C CA

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Figure 5: Cross Section of a cell membrane

Question 64

and its components

Question 65

It is a semipermeable membrane

Answer 65

that allows the entry of some substances

Question 66

water

Answer 66

and prevents the entry of others.

Question 67

The cell membrane is very flexible

Answer 67

allowing it to change its shape when needed. The

Question 68

proteins found in a cell membrane are important for the cell to communicate with its neighbors

Question 69

( cell -to- cell interaction).

Question 70

The cell wall is an additional boundary aside from the cell membrane

Answer 70

surrounding the

Question 71

cells of plants

Answer 71

fungi

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The plasma or cell membrane encloses a mass of jellylike material called protoplasm.

Question 73

The protoplasm is a colorless or somewhat grayish

Answer 73

translucent

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capable

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of flowing. It is a colloid

Answer 75

can change its state from a semisolid gel to a semiliquid

Question 76

solution. Its texture also varies. It is composed of 20 % carbon

Answer 76

10 % hydrogen

Question 77

Oxygen

Answer 77

3 % nitrogen