5: Three enzymes, P, Q and R, were extracted from different regions of the alimentary
canal of a mammal. The effect of pH on the activity of the enzymes was investigated at
40°C. The results are shown in Fig. 3.2.
R
100 -
rate of
enzyme
activity /
arbitrary
M
25
0
1 1
1
pH
Fig. 3.2
() Explain why the investigation was carried out at 40°C.​

helicase, i think thats it

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set

a. population growth is decreasing

-2

+4

-10

-3

-8

-3

so the population decreased by 24 because 3+3+8+10+2=26-2=24.

hoped i !

explanation: