Cell structure

Question 1

What is the function of the cell wall?

Answer 1

it provides structural support.

Question 2

What is the function of the cell membrane?

Answer 2

It controls what goes in and out of the cell.

Question 3

What is the function of the vacuole?

Answer 3

It contains the cell sap and is used for storage.

Question 4

What is the function of cytoplasm?

Answer 4

it’s where lots of chemical reactions take place.

Question 5

What is the function of chloroplasts?

Answer 5

it is the site of photosynthesis.

Question 6

What is the function of the nucleus?

Answer 6

It contains genetic information, controls and regulates the activities of the cell.

Question 7

What is the function of mitochondria?

Answer 7

it produces ATP through aerobic respiration to generate energy for cells.

Question 8

What is the function of ribosomes?

Answer 8

It is the site of protein synthesis.

Question 9

What is glycogen?

where is it found

Answer 9

it is a storage molecule found in animals cells

Question 10

What is starch?

where is it found?

Answer 10

an insoluble storage molecule found in plant cells.

Question 11

Why are plant and animal cells classed as eukaryotes?

Answer 11

because they have a nucleus.

Question 12

This part makes food for the plant, contains green chlorophyll, traps sunlight for photosynthesis _______

Answer 12

chloroplast

Question 13

food storage in the animal cell

Answer 13

glycogen

Question 14

rigid strcuture made of celulose - supports and strengthens the cell

Answer 14

cell wall

Question 15

large insoluble molecule - carbohydrate storage in the plant cell

Answer 15

starch

Question 16

permanent large organelle, contains cell sap, helps support the cell

Answer 16

vacuole

Question 17

Gel like, where chemical reactions take place

Answer 17

cytoplasm

Question 18

membrane bound organelle containing genetic material which controls the cells activities

Answer 18

nucleus

Question 19

most energy is released by respiration here

Answer 19

mitochondria

Question 20

protein synthesis happens here

Answer 20

ribosomes

Question 21

controls substances that move in and out of the cell, helps keep the shape of the cell

Answer 21

cell membrane

Question 22

Why is cell specialisation important for the development and growth of a healthy baby from a fertilised egg?

Answer 22

babies are made of different types of cells or cells that have different functions OR specialised cells undergo mitosis to grow further cells (cells divide or reproduce to form identical cells)

Question 23

What does the head of a sperm contain

Answer 23

• haploid nucelus contains the paternal DNA
• acrosome cap contains hydrolytic enzymes which help the sperm penetrate the egg
• centrioles are needed by a zygote to divide

Question 24

What does a mid-piece of a sperm contain

Answer 24

high numbers of mitochondria which provides energy (ATP) needed to move

Question 25

what does the tail of the sperm cell do

Answer 25

it propels the sperm to the egg

Question 26

how do u convert nanometer to micrometer and verse versa?

Answer 26

nm to um = /1000
um to nm = x1000

Question 27

how do u convert micrometer to millimeter and vice versa?

Answer 27

um to mm = /1000
mm to um = x1000

Question 28

how to convert mm to cm and vice versa

Answer 28

mm to cm = /10
cm to mm = x10

Question 29

how do u calculate total magnification from eyepiece lens and objective lens

Answer 29

multiply the powers of both of them

Question 30

what does resolution mean

Answer 30

the smallest scale division of the microscope

Question 31

what does magnification mean

Answer 31

the ability of a microscope to produce an image of an object at a scale larger(or smaller) than its actual size