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BIOLOGY&CHEMISTRY

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

An Atmometer is a device for measuring this process related to transpiration in plants. A cooling effect associated with it is exploited by animals with sweat glands. (*) For 10 points-name this phase change seen when a puddle slowly disappears as liquid water becomes water vapor.

a)

evaporation

b)

sublimation

c)

transformation

d)

condensation

2.

Many salts and sugars dissolve in this substance. Name this substance with molecular formula H20 whose melting point is zero degrees Celsius.

a)

water

b)

ice

c)

copper sulphate solution

d)

hydrochloride solution

3.

This disease, named after its tendency to cause sweet-tasting urine, does damage to blood vessels that often requires the use of special socks. It is caused by the destruction of beta cells in the pancreas. Name this disease of high blood sugar, often treated with insulin.

a)

nephroma

b)

hematuria

c)

diabetes

d)

nephritis

4.

It is the hardest natural material known. Name this gemstone found in kimberlite, composed of carbon crystals.

a)

silicon dioxide

b)

diamond

c)

graphene

d)

graphite

5.

This element, which yields the most common anion in the blood, combines with hydrogen to form a compound secreted by the stomach. It has atomic number 17 and is found in bleach and bonded to sodium in table salt. Name this element used to disinfect swimming pools.

a)

iodine

b)

florine

c)

bromine

d)

chlorine

6.

In certain lizard species, populations use temperature to regulate this property in offspring, while others in the same species use genotypes. Birds use a ZW system, but most mammals use an XY system to determine it. Name this property that for humans can be male or female.

a)

age

b)

sex

c)

gene

d)

gender

7.

" Strong" types of these compounds include the hydrochloric and nitric variety. Name these compounds with a pH below 7.

a)

grace

b)

bases

c)

acids

8.

A flame test on boron produces this color. Between pH 2 and 11, by the malachite indicator is this color. This is the color of the algae genus Volvox and of the photosynthetic pigment chlorophyll. Name this color.

(a)  

9.

This six-carbon sugar is produced as a result of photosynthesis, and is used as a primary food source by essentially all cells. Name these carbohydrates.

a)

glycogen

b)

sucrose

c)

fructose

d)

glucose

10.

This quantity can be calculated using peripheral resistance, and controlled by drugs called ACE inhibitors. This quantity is elevated in hypertension. It comes in systolic and diastolic forms. Name this measure of force exerted by the heart, also called BP.

a)

blood present

b)

blood practice

c)

blood pressure

d)

black pink)