Filters

American National Curriculum

Matter And Energy In Living Systems

Matter And Energy In Living Systems - Chemistry Questions asked by Filo students

Question 21

Views: 5,196

While the teacher spoke, her students listened 7. They live two kilometers from the train and took station.

shorts
office
outside
place
notes
away
around

Topic:

Matter and Energy in Living Systems

View solution

Question 22

Views: 5,337

The child wain because his toy was broken.

along
tidy

Topic:

Matter and Energy in Living Systems

View solution

Question 23

Views: 5,926

You must have a to drive a car.

thin
upset
license:
concert
modern
video
uniform

Topic:

Matter and Energy in Living Systems

View solution

Question 24

Views: 5,236

object allowing it to be observed in greater detail than is possible with the naked eye. Magnification refers to the number of times larger an object appears compared to its calculate an object's actual size, in which case you will bo told the size of the object and the magnification. Calculating Linear Magnification: A Worked Example (1) Measure the body length of the bed bug image (right). Your measurement should be

40 mm

(not including the body hairs and antennae). (2) Measure the iength of the scale line marked

1.0 mm

. You will find it is

10 mm

long. The magnification of the scale line can The magnification of the scale line is

10 (10 mm /1 mm)

Microscopy Equations 'NB: The magnification of the bed bug image will also be 10x because the scale line and image are magnified to the same degree. (3) Calculate the actual (real) size of the bed bug using equation 2 (right): The actual size of the bed bug is

4 mm

40 mm /10 \times

magnification) organisms results in the emergence o The celi is the functianing unit struc organisms are made. in mulice How can 1 t bo that at of an organivn the same genotio mustrial but the

c

varvety of shapes are turictions? During development, the unspeci. of the Tygote develop along gurm mesoderm, or ectoderm lines to material (genes), Otterences in determine which type of cell to developmental pathwiy of a co cannot then crange into anon Zygote 1. The bright field microscopy image on the left is of onion epidermal cells. The measured length of the onion cell in the centre of the photograph is

52, 000 μ m (52 mm)

. The image has been magnified

140 x

. Calculate the The zygote (lertlized egg) actual size of the cell: 2. The image of the flea (left) has been captured using light microscopy. (a) Calculate the magnification using the scale line on the image:

Topic:

Matter and Energy in Living Systems

View solution

Question 25

Views: 5,122

14. Estimate the pounds of lime needed to neutralize a sour digester if the digester contains

0.25 mg

of sludge with a volatile acid level of

2, 400 mg / L

as acetic acid.

Topic:

Matter and Energy in Living Systems

View solution

Question 26

Views: 5,742

C. Unit Conversions: Complete the following problems. (5 points). Writing the conversion factor ( 1 point), setting up the problem ( 2 points) and calculating the final answer ( 1 point) with the correct unit ( 1 point each). 3) How many milligrams are in 92 grams? Conversion factors:

\frac{1 0 ^{- 3} Igram}{1 gram = 1 0 ^{- 3} m}

Topic:

Matter and Energy in Living Systems

View solution

Found the solution, but did not understand the concept?

Connect with a tutor in less than 60 seconds 24x7

Ask my first question

Prev

Next

Get instant study help from an expert tutor 24/7